The short version
- We collect what the app needs to coach you: your account, your golfer profile, the swing videos you add, and the measurements and coaching made from them.
- Your videos are stored privately and analyzed on our servers. For each analysis, up to four still frames and the measurements are sent to our AI provider, Anthropic. Your full video is never sent to Anthropic.
- Live Coach tracks your body on your phone. Camera frames never leave the device.
- We don’t sell your personal information, show ads, or track you across other companies’ apps and websites.
- You can export your data or delete your account at any time.
Who we are
Swing Smarter is an iPhone app that gives AI golf coaching based on measurements of your body movement. It is operated by Benjamin Noah Siegel, New York, United States (“we”, “us”). We are responsible for (the “controller” of) the personal data described in this policy.
This policy covers the Swing Smarter app, the servers that support it, and this website. It does not cover Apple’s App Store, or websites you open from the app (such as drill videos on YouTube); their own privacy policies apply. Questions about privacy: support@swingsmartergolf.com.
What we collect
| Data | What it includes | Why we need it |
|---|---|---|
| Account | Your email address. If you sign in with Apple (or Google, where offered), the account identifier and email address that service shares with us; Apple may give us a private relay address instead of your own. If you sign up with email, your password is stored by our sign-in provider in hashed form. | To create and secure your account and sign you in. |
| Golfer profile | Your name (if you give one), skill level, handedness, goals, what you struggle with, your clubs and how often you play. | To tailor analysis and coaching to you. |
| Swing videos | Videos you record or import into the app, and the point you mark on the ball for plane lines. | To analyze your swing and play it back to you. |
| Body measurements | Body landmarks (the positions of joints such as your shoulders, hips, knees and hands) detected in your videos, still key frames, and the measurements, findings and reports made from them. | To build your breakdown, overlays, comparisons and progress. |
| Live Coach data | Joint positions for each swing Live Coach detects (numbers, not images), the measurements made from them, the text of questions you ask, and lesson summaries. | To give you feedback during and after a session. |
| Coaching content | Coach chat messages, practice plans and drill completions. | To provide coach chat, plans and progress tracking. |
| Consent records | What you agreed to (such as AI processing or model training), the version of the text you saw, and when. | To respect your choices and to show that we did. |
| Subscription and usage | Your plan, subscription status and renewal dates, and counts of what you have used against your plan’s limits. We never receive your payment card details. | To provide what your plan includes and apply its limits. |
| Technical data | When the app talks to our servers: your IP address, the time, the request made and your account ID. Our application logs do not record email addresses, sign-in tokens or the contents of requests. | To run the service, keep it secure, prevent abuse and fix problems. |
The app asks for access to your camera and microphone, and on iPhone for speech recognition, only for features that use them. It does not ask for your location or contacts, and it does not read your photo library: when you import a video, the system picker shares only the video you choose.
How we use it
We use personal data only to provide and protect Swing Smarter. If you are in the European Economic Area (EEA), the UK or Switzerland, these are our legal bases:
- To provide the app and the features you use (your account, video analysis, Live Coach, coach chat, practice plans, progress and subscriptions): performance of our contract with you, the Terms of Use.
- To send data to our AI provider to generate coaching: your consent, which the app asks for before any data is sent. You can withdraw it at any time.
- To improve our own models with your videos, only if you turn on model training: your consent. This setting is off by default. We do not train any models on user videos today.
- To keep the service secure and reliable (rate limits, logs, and a record that a deletion request was completed): our legitimate interest in running a secure, working service.
- To comply with the law and respond to lawful requests: legal obligation.
- To contact you about your account, your support requests and important changes (such as changes to this policy): performance of our contract, or our legitimate interest in keeping you informed.
We use body landmarks only to measure your golf swing. We do not use them, or your videos, to identify you or recognize your face. We do not use your data for advertising, and we do not make decisions about you that have legal or similarly significant effects based solely on automated processing.
AI processing
Swing Smarter uses Claude, an AI model made by Anthropic, to turn measurements into coaching. Before anything is sent, the app tells you this and asks for your consent. Video analysis, Live Coach’s AI feedback and coach chat need that consent. Without it you can still record and play back swings and use features that work without AI. The app never sends data to the AI provider without your consent.
What is sent to Anthropic depends on the feature:
- Video analysis: up to four still frames from your video (images no larger than 768 pixels), the measurements and findings from the analysis, and a summary of your golfer profile. Your full video and your email address are never sent.
- Live Coach: measurements from your swings (never camera images or raw joint positions) and the text of questions you ask.
- Coach chat and practice plans: your message, and relevant parts of your history, such as your profile summary, analyses, findings, measurements, sessions and drills.
Requests to Anthropic are made from our servers, never directly from the app. Anthropic processes this data to provide its service to us under its commercial terms.
Live Coach and on-device processing
- Live Coach runs body tracking on your phone. Camera frames are processed on the device and are never uploaded, stored by us, or sent to Anthropic.
- For each swing it detects, the app sends a short window of joint positions (typically 3 to 8 kilobytes of numbers) to our servers to measure the swing and choose your feedback.
- Spoken questions are converted to text on your iPhone where iOS supports on-device recognition. Otherwise iOS may use Apple’s speech recognition service, under Apple’s privacy policy. We receive only the text.
Who we share it with
We share personal data only with the service providers below, which process it for us to run Swing Smarter, and with Apple as described. We don’t sell or rent personal data.
| Provider | What they do for us | Data involved | Location |
|---|---|---|---|
| Supabase, Inc. | Sign-in (including account emails such as password resets), database and file storage, including your videos | All app data described above | United States |
| Hetzner Online GmbH | Hosts our API and analysis servers, which process your videos to measure your body | Videos while they are analyzed, request data | the United States |
| Anthropic, PBC | AI model (Claude) that writes coaching | Still frames, measurements, profile summary, messages and questions | United States |
| RevenueCat, Inc. | Keeps track of your subscription status | Your account ID (a random identifier, not your email) and purchase records from Apple | United States |
Apple handles App Store purchases and billing, Sign in with Apple, and (when on-device recognition isn’t available) speech recognition, under its own privacy policy. If Sign in with Google is offered and you use it, Google handles that sign-in under its own policy. Drill demonstration videos open on YouTube; we don’t send YouTube any of your data, but YouTube’s privacy policy applies when you watch.
We may also disclose information if the law requires it, to protect the rights and safety of our users or others, or as part of a merger, acquisition or sale of the business, in which case this policy will continue to apply to your data.
Where your data is processed
Your data is stored in the United States (Supabase) and processed in the United States (Anthropic, RevenueCat) and in the United States (Hetzner). If you live elsewhere, including the EEA, the UK or Switzerland, your data is transferred to these countries. Where the law requires it, we rely on safeguards for these transfers, such as the European Commission’s Standard Contractual Clauses and the UK International Data Transfer Addendum in our providers’ data processing terms, or an adequacy decision such as the EU-U.S. Data Privacy Framework where a provider is certified under it. You can ask us for more information about these safeguards.
How long we keep it
| Data | How long |
|---|---|
| Swing videos | Until you delete the swing or your account. On the free plan, swings older than 30 days are hidden in the app but not deleted; upgrading shows them again. |
| Key frames, body landmarks, analyses, findings and measurements | As long as the swing they belong to. |
| Uploads that never finish | Deleted automatically after about a day. |
| Uploads that arrive after their swing or your account was deleted | Deleted automatically within about 3 hours. |
| Live Coach sessions and swings (joint positions and measurements) | Until you delete your account. |
| Coach chat | Until you delete the conversation or your account. |
| Profile, practice plans, drill completions, consent records, subscription and usage records | Until you delete your account. |
| Data export files | The download link works for 1 hour; the file is deleted after 24 hours. |
| Purchase event records received from the App Store | 90 days. |
| Rate-limiting counters | 1 day. |
| Deletion log (a one-way hashed account identifier and timestamps, nothing else) | 1 year, to show that a deletion was completed. |
| Server logs | A limited period for security and troubleshooting, then deleted. |
| Backups | Our database provider keeps rolling backups. Deleted data disappears from them as those backups expire on their normal schedule. |
Export, deletion and consent
Export your data
In the app, go to Settings → Privacy & data → Export my data. You get a file with your profile, swings, analyses and lessons, plus download links to your media that work for 1 hour. We delete the export file from our servers after 24 hours.
Delete your data
- Delete individual swings in the app at any time.
- Delete your account in the app: Settings → Privacy & data → Delete account. Deletion happens immediately.
- Or request deletion without the app, at api.swingsmartergolf.com/account-deletion or by emailing support@swingsmartergolf.com from the address you sign in with. See how account deletion works.
When you delete your account we delete your sign-in account, profile, consent records, videos, key frames, body landmarks, analyses, Live Coach sessions, chats, plans, drill completions, subscription and usage records held by us, and any export files, and we ask RevenueCat to delete your customer record. We keep only the items in the retention table above that outlast an account (the deletion log, purchase event records, rate-limiting counters and backups) for the periods shown. Deleting your account does not cancel an App Store subscription; cancel it in your Apple ID settings.
Change your consent
Turn AI processing or model training on or off at any time in Settings → Privacy & data. Turning off AI processing stops new data being sent to Anthropic; it does not undo processing that has already happened. You can also change camera, microphone and speech recognition access in your iPhone’s Settings.
Your rights
Wherever you live, you can see, export, correct and delete your data in the app, or ask us to do it at support@swingsmartergolf.com. We may ask you to confirm a request from the email address you sign in with, so that we only act for the account owner.
EEA, UK and Switzerland
You have the right to access your personal data, to correct it, to have it erased, to restrict or object to our processing of it (including processing based on our legitimate interests), to receive it in a portable format, and to withdraw consent at any time without affecting processing that happened before. You can also complain to your local data protection authority (in the UK, the Information Commissioner’s Office). We respond to requests within one month, which the law lets us extend in some cases.
California
If you are a California resident, you have the right to know what personal information we collect, use and disclose, to have it deleted, to have it corrected, and to opt out of its sale or sharing. We do not sell personal information or share it for cross-context behavioral advertising, and we do not use sensitive personal information to infer characteristics about you. In the last 12 months we collected the categories described in What we collect: identifiers (such as your email address, account ID and IP address), customer and commercial records (your subscription), audio and visual information (your swing videos and still frames), internet or other electronic network activity (technical data), account login information, and characteristics you choose to add to your golfer profile. We collect them from you, from your device and from Apple, for the purposes in How we use it, and disclose them only to the service providers listed above. You can use an authorized agent to make a request, and we will not treat you differently for exercising these rights.
Other places
If you live in another US state or another country with a privacy law, you may have similar rights. Contact us and we will help.
Children
Swing Smarter is not directed to children under 13, and we do not knowingly collect personal data from children under 13 (or under the minimum age set by the law where they live). If you believe a child has given us personal data, contact us and we will delete it.
Security
- Data is encrypted in transit (HTTPS) between the app, our servers and our providers.
- Each account’s data is isolated: database rules only let an account read its own records, videos are kept in private storage, and our servers check ownership on every request.
- Server keys never ship in the app, and AI requests are made only from our servers.
- Our logs leave out email addresses, sign-in tokens and request contents.
No system is perfectly secure. If a breach affects your personal data, we will tell you and the authorities as the law requires.
This website
swingsmartergolf.com uses no cookies, analytics, advertising or third-party content, and its fonts and images are served from our own server. Like any website, our server receives your IP address and browser details in order to deliver pages, but we do not keep access logs for this site. Links to the App Store and other sites take you to services with their own privacy policies.
Changes to this policy
We will update this policy when our practices change and show the new effective date at the top. If a change is significant, we will tell you in the app before it takes effect and, where required, ask for your agreement again.
Contact us
Benjamin Noah Siegel
New York, United States
Email: support@swingsmartergolf.com