Treblew

This version, last updated 15 October 2026, has been replaced by a newer one. It still applies until the newer version takes effect for you (see that version's Effective Date). Read the current Treblew Privacy Policy. All versions

Treblew Privacy Policy

Effective Date: 15 October 2026

Treblew is operated by Jennifer Cabral ("Treblew", "we", "us", or "our").

This Privacy Policy explains how we collect, use, disclose, protect, and retain information when you use the Treblew application, website, and related services (collectively, the "Service").

Treblew is a fitness and sports application designed to help you record activities, understand your progress, create and follow plans, and receive personalized guidance from Coach.

By using Treblew, you acknowledge the practices described in this Privacy Policy.

Who is responsible for your information

Jennifer Cabral, the individual developer who operates Treblew, decides how and why your personal information is used: she is the "controller" under the EU and UK GDPR and the "personal information controller" under the Philippine Data Privacy Act of 2012. For anything about your information, including the requests in section 10, write to privacy@treblew.com; it reaches the person responsible for data protection at Treblew.

In short

1. Information We Collect

We collect information you provide to us, information generated through your use of Treblew, and information made available to us when you grant permission to connected services.

Account information

When you create or use a Treblew account, we may collect:

Authentication may be provided through third-party identity services. Treblew does not store your third-party authentication password.

You sign in with Apple or Google. Amazon Cognito, Amazon Web Services' sign-in service, receives your email address (with Sign in with Apple, it can be a private relay address Apple gives you) and the first name Apple or Google shares, and keeps them for your sign-in.

Fitness and activity information

Depending on the features you use, Treblew may collect or generate:

Not every category is collected for every activity.

Golf information

When you use Golf features, Treblew may collect:

Treblew labels these distances as GPS distance. GPS distance is not represented as carry distance or measured club distance.

Where each shot was hit stays on the iPhone you played the round on, with the round (in your iPhone's own backup unless you turn it off in Settings › Your data › iCloud backup), until you delete the round's session or your account. Treblew's servers keep whether a shot had a position and the GPS distance your iPhone measured from it to the next shot. A course's first tee is kept on Treblew's servers, to suggest the course when you are near it.

If you download golf courses by country, the public course data for the countries you download (from OpenGolfAPI, with its attribution) and the maps of the catalog courses you play are kept on your device until you remove them or sign out. Treblew's servers don't record which countries you keep.

When you search for golf courses near you, Treblew's server sends OpenGolfAPI, the course data provider, the centre of the area of about one kilometre you are in, never your exact position and never who you are.

If you calibrate your Apple Watch, the peak readings of your newest calibration strokes (at most 60 of each kind) and the detection settings derived from them are kept on the watch, until you start a sport fresh or remove the app. The motion of each calibration swing or stroke is also sent to your iPhone and kept there for up to 60 days (in your iPhone's own backup unless you turn it off in Settings › Your data › iCloud backup), so you can share it if you choose; your iPhone is also told whether each sport is calibrated, when it last was, from how many strokes, how they were recorded, and the motion rate your watch measured at. None of it reaches Treblew's servers unless you share it with Treblew (below).

When swing or hit detection is on, your Apple Watch also sends your iPhone the motion around each detected golf swing or shot and each stroke of a racket sport it counts hits in (tennis, pickleball, badminton, squash) (rotation, orientation and acceleration from the watch's motion sensors and, on newer watch models, a short high-rate accelerometer recording around the moment of contact). It is kept on your iPhone for up to 60 days (in your iPhone's own backup unless you turn it off in Settings › Your data › iCloud backup) so you can review it and share it if you choose, together with any answers you give when you check a stroke's estimated name. None of it reaches Treblew's servers unless you share it with Treblew (below).

If you turn on Record your swings during a golf practice, your iPhone's camera and microphone film you only while that screen is open and filming. Your iPhone keeps a short clip of each swing, with its sound, and its reading of your body's position in the clip; the rest of the footage is discarded within a minute. Clips stay on your iPhone (not in its backup unless you turn it on in Settings › Your data › iCloud backup) for up to 60 days, or until you delete them, delete the session or delete your account, and never reach Treblew's servers unless you choose "Analyse this swing": then frames taken from that one clip, without its sound, are sent for analysis like those of any swing video you add; the clip stays on your iPhone. A clip you save to Photos or share goes only where you send it. A swing filmed without an Apple Watch is recorded in your practice as a swing (its time, and whether its strike was heard), like a swing your watch detects.

When you send a swing video for analysis (one you add or a clip), your iPhone keeps a copy of the video it sent so you can see it with the analysis. The copy stays on your iPhone (in your iPhone's own backup unless you turn it off in Settings › Your data › iCloud backup) for up to 60 days, or until you delete the session or delete your account.

Your iPhone also keeps, from that motion, summaries such as your typical swing, the estimated names of your strokes and swings, and which wrist you wear your watch on for each session. They stay on your iPhone (in your iPhone's own backup unless you turn it off in Settings › Your data › iCloud backup) until you delete the session or your account, and never reach Treblew's servers.

Signing out keeps your swing motion, clips, sent videos, shot positions, measured values and profile picture on that iPhone for when you sign in again. Each account's are kept apart: someone else signing in on that iPhone never sees yours, and deleting an account removes only its own. Your iPhone's own backup, in iCloud or on a computer, is yours, never Treblew's.

Apple Health and HealthKit

If you authorize Apple Health access, Treblew may read selected health and fitness information available through HealthKit for the features you choose to use.

Depending on your permissions and the feature, this can include:

You control HealthKit permissions through Apple's controls. You can grant or withdraw access to individual categories of Health information.

Treblew uses HealthKit information only for health and fitness functionality, such as importing activities, presenting fitness information, supporting workouts, and providing relevant context for features you request.

When you turn on Save sessions, Treblew also writes the sessions you record to Apple Health as workouts: the activity, its start and end, and what your iPhone or Apple Watch measured (for example heart rate, energy, distance and steps and, for an outdoor session recorded on the watch, its route). What Treblew writes to Apple Health stays there, under your control, even if you delete your Treblew account.

When you open a session on your iPhone, Treblew reads its workout from HealthKit to show it, including heart rate through the session and, where Apple provides them, Apple's heart-rate zones. These are shown on your device and are not stored by Treblew or sent to Treblew's servers.

When a device measured a session (your Apple Watch through Treblew, or a workout you import or link from Apple Health), Treblew keeps a bounded summary of it with that session on your iPhone: for example average, highest and lowest heart rate, active energy, distance, elevation, steps and the time spent in each heart-rate zone, together with the name of the device or app that measured it. These measured values are in a file for each account, kept out of your iPhone's backup, and are not stored on Treblew's servers. Treblew's servers keep the session itself (its activity, times, what Treblew detected and, for golf, GPS distances) and which Apple Health workout it is, so that on a new iPhone, or after you reinstall Treblew, the values are read again from Apple Health. A golf shot's or swing's heart rate, and the values of an Apple Watch session recorded with Save sessions off, are not in Apple Health and can't be read again. Treblew's servers do not store heart-rate series, motion streams or routes.

If no device measured a session's energy, Treblew may show an estimate calculated on your iPhone from the activity, the session's active time and your body weight in HealthKit. Your body weight and the estimate stay on your device: they are not stored by Treblew, sent to Treblew's servers or given to Coach.

Treblew does not sell HealthKit information.

Treblew does not use HealthKit information for advertising or behavioral advertising.

For Golf shots, where you have granted the necessary permission, Treblew may associate limited health context with an individual shot, such as a recorded heart rate at or around the time of the shot. It stays on your iPhone with the shot, like a session's measured values. Treblew does not require HealthKit access to record a shot.

Treblew does not send a complete HealthKit heart-rate series or complete HealthKit history to Coach merely because you have enabled HealthKit.

Location information

Some Treblew activities use location information to record routes or activity locations.

Golf features may also use your device location to associate GPS positions with recorded shots.

Location data may therefore include:

Location recording is feature-specific. You may choose not to grant location permission, but location-dependent functionality may not work without it.

On your iPhone, Treblew uses your location only while the app is open, during a golf round and to find courses near you. On Apple Watch, once you start a golf round or an outdoor session, the watch keeps recording your location until you end it, including while its screen is off; it is used for the session's distance, its route and your shots. Your shot positions stay on your iPhone with the round, and Treblew's servers keep only a course's first tee; routes stay on your devices and in Apple Health. Maps in the app are Apple Maps, so Apple receives requests for the map area shown.

Apple Watch information

When you use Treblew with Apple Watch, the Watch may collect workout and activity information and communicate selected information to your iPhone.

For Golf rounds, Treblew's experimental shot detector may detect a possible shot from Watch motion data and send the shot event to your iPhone together with relevant information such as timestamp, location when available, and heart rate when permitted and available.

Watch communication does not require storing your Treblew authentication token on the Watch.

Widgets, Live Activities and reminders

Treblew's widgets, watch face complications and Live Activities show information such as your planned activities, your week's counts and a session in progress (its activity, time and figures such as distance, pace, the current set or the number of swings) on your Home Screen, Lock Screen and watch face, where anyone who can see your device can see it. None of them shows notes or Coach messages, the Live Activity never shows heart rate, and widgets show goals and measured values on a locked iPhone only if you turn that on. Their information is kept on your devices, never sent anywhere, and removed from your iPhone when you sign out. Reminders are notifications made on your device; Treblew sends no push notifications.

Things you share

When you share a session summary (an image, a video, or a sticker for Instagram or another app), or a file of the motion of your swings and strokes, Treblew makes it on your iPhone and it goes only where you send it, through your device's share sheet. A summary can show your activity, times, measured values and, where the session has one, the shape of its route, which is left off unless you add it; check what is on it before you share. A photo or video you put behind a summary stays on your iPhone and is never uploaded. A motion file contains no name, email or account details. Once shared, it is handled by the service or person you share it with.

Swing data you share with Treblew

If you choose Share swing data to Treblew on a swing, a session or a sport's calibration, Treblew's servers receive the same file Download swing data saves: the motion your watch recorded around those swings or strokes, when each was, its tempo and timing, any answers you gave when checking a stroke's estimated name, the app's version and, for a swing filmed on your iPhone, the clip's timing, the reading of your body's position in it and the tempo worked out from it. It never contains the video or its sound, health values such as heart rate or energy, your location, or your name or email. You are asked every time, with what is sent, and nothing is sent unless you confirm.

We use it only to improve Treblew's swing detection and tempo, never for anything else; it is never sent to an AI provider, never sold and never shared with anyone else, and it is not used to identify you. It is kept in Treblew's private storage with your account's random identifier for 12 months, then deleted, and is deleted sooner when you delete your account. The copy we work with on our own computer is deleted with it.

Information generated by Treblew

Treblew may generate:

Treblew distinguishes measured, detected, estimated, and Coach-generated information where appropriate. A detected or estimated value should not be interpreted as a directly measured fact.

Technical information

When you use the Service, technical information may be processed as necessary to operate, secure, troubleshoot, and improve the Service. Depending on the environment, this may include:

Treblew's servers log each request (its time, the kind of request, its result and the IP address it came from, but not your name, email or account) to keep the Service running and secure. If the app crashes, it may send Treblew's server a short crash report (the error with personal details removed, where in the app it happened, the app version and the system), which is logged without your account and never stored in our database.

No third-party analytics

Treblew uses no third-party analytics or advertising SDKs. Nothing in the app records which screens you open or what you tap, and it contains no advertising or tracking code. Apple may give us app usage and crash statistics in App Store Connect if you have chosen to share analytics with app developers in your iPhone's settings; Apple controls that choice and what it includes.

2. How We Use Information

We use information to:

We do not use your information for advertising, we do not sell it, and we do not use your content, such as your swing videos, notes or Coach conversations, to train AI models.

Personalization

We use information you provide and information generated from your activities to make Treblew more relevant to you.

For example, Coach may consider your selected activity, goals, plans, previous sessions, notes, and other relevant information so that its responses are not unnecessarily generic.

Coach's suggestions are only suggestions: nothing changes in your plans or schedule until you add it, and Treblew makes no automated decision about you that has legal or similarly significant effects.

Legal bases

Where the law requires a legal basis for using personal information (for example the EU and UK GDPR, and the Philippine Data Privacy Act), we rely on:

3. Coach and AI Processing

Treblew includes AI-assisted features referred to as Coach.

When you use Coach or another AI feature, information relevant to that request may be processed by third-party AI or infrastructure providers used by Treblew. Coach's answers and golf swing analysis are currently written by an AI model from OpenAI.

Depending on the feature, this may include:

Treblew aims to send only information relevant to the requested AI feature rather than unrelated account information.

When you have allowed Coach your measured values and your question calls for them (for example about effort or heart rate), your iPhone sends the measured values of the sessions and shots Coach reads for that answer, for that answer only: Treblew's servers don't store them. The stored conversation keeps Coach's answer without the measured figures; the whole answer stays on the iPhone you asked on.

Nothing is sent to OpenAI until you allow it (on the Coach tab, or before your first swing analysis), and you can withdraw that permission in Settings › Your data › Coach & AI. Your name, email and account identifiers are not sent. OpenAI processes this information on our behalf to produce the answer; under OpenAI's terms for its API, it does not use it to train its models, and may keep it for a limited time (currently up to 30 days) to detect abuse.

AI-generated information may contain errors and should be treated as guidance rather than a guaranteed measurement, diagnosis, or professional determination.

Treblew does not sell your personal information or use it for advertising.

4. When We Share Information

We may use third-party providers for services including:

These providers may process information as necessary to provide services to Treblew and subject to applicable contractual and legal requirements.

They are:

Certain information may also be processed by Apple or connected Apple services when you use HealthKit, Apple Watch, StoreKit, or App Store subscriptions.

We may also disclose information when reasonably necessary to comply with law, respond to legal process, protect users or the Service, investigate fraud or security incidents, or establish or defend legal claims.

If Treblew is ever transferred to someone else, your information may be transferred with it, under this Privacy Policy, and we will tell you before that happens.

We do not sell personal information to advertising platforms or data brokers.

We do not sell personal information, or share it for cross-context behavioral advertising, as those terms are used in US state privacy laws.

5. Subscription Information

When you purchase Treblew Pro through Apple's App Store, we process information necessary to establish and maintain your entitlement.

This may include:

If you redeem an App Store offer code in Treblew, we keep its Apple transaction identifiers with the account that handed it over, so that the subscription stays with that account.

Treblew does not receive or store your full Apple payment card details.

6. Health and Fitness Data

Health and fitness information can be sensitive.

Treblew requests access to HealthKit information only when required by a feature you use. You can manage HealthKit permissions through your device settings.

Treblew does not:

Measured values from Apple Health reach Coach only with a separate permission, and only when your question calls for them.

7. Data Retention and Deletion

We retain information for as long as reasonably necessary to provide the Service, maintain your account and history, provide requested features, comply with legal obligations, resolve disputes, enforce agreements, and maintain security and service integrity.

In particular:

You may request deletion of your Treblew account through the supported account-deletion feature.

When you delete your account in the app, your account and everything in it (sessions, notes, goals, plans, golf rounds, Coach conversations, the Free allowance counts and your subscription records) are deleted from our database straight away, and your swing frames (and any video an earlier version of the app sent), the swing data you shared with Treblew and your sign-in are deleted with them. With Sign in with Apple, we also ask Apple to disconnect Treblew from your Apple Account. So that restoring a database backup can never bring a deleted account back, we keep a note that it was deleted (its random identifier and the time, nothing else) for 8 days; changes to your AI and health permissions are noted the same way.

When an account is deleted, Treblew will delete or de-identify account information and associated user data in accordance with its deletion processes and applicable legal requirements, except where information must or may lawfully be retained.

Backup systems may retain information for a limited period before being overwritten or securely deleted.

Deleting your Treblew account does not cancel an Apple subscription that Apple independently manages.

8. International Processing

Treblew and its service providers may process information in countries other than the country in which you live.

Treblew's servers are in Singapore. OpenAI processes information in the United States, and Apple and Google wherever they operate.

Where required by applicable law, Treblew will use appropriate safeguards for international transfers and processing.

These include the providers' data processing terms and, for transfers from the EU, the UK or Switzerland, the standard contractual clauses approved for them. You can ask for more information at privacy@treblew.com.

9. Data Security

We use reasonable technical and organizational safeguards designed to protect information against unauthorized access, alteration, disclosure, loss, or destruction.

These include encryption in transit and at rest, private storage, access only through your own signed-in account, and limits on who can reach our systems.

No internet service can guarantee absolute security.

If a breach of security affects your personal information in a way that puts you at risk, we will tell you and the authorities concerned, such as the National Privacy Commission of the Philippines, as and when the law requires (for the Commission, within 72 hours of learning of it).

10. Your Choices and Rights

Depending on applicable law, you may have rights concerning your personal information, including the right to:

You may manage Apple Health and location permissions through Apple's device settings.

In Treblew, you can change your name, edit or delete sessions, goals, plans and Coach conversations, withdraw Coach's permission (Settings › Your data › Coach & AI), and delete your account (Settings › Your data › Delete account).

For anything else, write to us. We may ask you to confirm the request from the email address of your Treblew account, and we will answer within 30 days (or sooner where the law requires). Using these rights is free, and we will not treat you differently for using them.

If you are not satisfied with our answer, you can complain to a data protection authority, such as the National Privacy Commission of the Philippines, the authority where you live or work in the EU or the UK (in the UK, the Information Commissioner's Office), or the Personal Data Protection Commission in Singapore.

For privacy requests:

Privacy: privacy@treblew.com

For general support:

Support: support@treblew.com

11. Children's Privacy

Treblew is not intended to knowingly collect personal information from children in circumstances where such collection is prohibited by applicable law.

Treblew is not for children: you must be at least 16 years old to use it (see the Terms of Use). We do not knowingly collect personal information from anyone under 16. If we learn that we have, we will delete the account and its information.

If you believe a child has provided personal information to Treblew without appropriate authorization, contact privacy@treblew.com.

12. Information for Particular Regions

The Philippines. Under the Data Privacy Act of 2012, you have the rights to be informed, to access, to object, to correct, to erasure or blocking, to data portability, to damages, and to file a complaint with the National Privacy Commission. Health information is sensitive personal information and is used only as this policy describes, with your consent.

The European Economic Area and the United Kingdom. The legal bases are in section 2, your rights in section 10, and international transfers in section 8.

United States. In the last 12 months we have collected the categories of information described in section 1: identifiers (such as your email and account identifiers), customer and commercial records (your Treblew Pro subscription), internet or electronic activity (the server's request logs and crash reports), precise geolocation (a golf course's first tee and, until 15 October 2026, golf shot positions sent by earlier versions of the app), and sensitive information (health and fitness information, your account sign-in), for the purposes in section 2, from you, your devices and Apple. We disclose them only to the providers in section 4, for those purposes. We do not sell or share personal information, and we do not use sensitive information to infer characteristics about you. Depending on your state, you may have the rights to know, access, correct and delete your information, and to appeal our answer to a request, by writing to privacy@treblew.com; we will not discriminate against you for using them. How we handle consumer health data, and your rights over it under Washington's My Health My Data Act and similar state laws, are in our Consumer Health Data Privacy Policy: https://treblew.com/health-data.

Singapore. Treblew's servers are in Singapore. You can contact us about your information under Singapore's Personal Data Protection Act at privacy@treblew.com.

13. Third-Party Services

Treblew may contain integrations with Apple services, authentication providers, cloud infrastructure, AI providers, and other third parties.

Those services may have their own privacy policies and terms. Their independent processing is governed by their respective policies.

14. Changes to This Privacy Policy

We may update this Privacy Policy when our Service, legal requirements, or data practices change.

The latest version will be published at:

https://treblew.com/privacy

We will update the Effective Date when the policy changes. If a change materially affects how we use your information, we will tell you in the app before it takes effect, and ask for your consent again where the law requires.

15. Contact

Treblew

Privacy: privacy@treblew.com

Support: support@treblew.com

Privacy Policy: https://treblew.com/privacy

Support: https://treblew.com/support

Terms of Use: https://treblew.com/terms

Operator: Jennifer Cabral

Last updated: 15 October 2026