TeraThresholdPrivacy Policy
The short version: TeraThreshold reads your runs from Garmin with read-only access, uses them to compute your form, training load and injury-risk analysis, and stores them so you can see your history. We do not sell your data, we do not show ads, and you can delete your account and everything in it from the app's Settings at any time.
This Privacy Policy explains how TeraThreshold LLC ("TeraThreshold", "we", "us") collects, uses, shares and protects information when you use the TeraThreshold iOS application (the "App"), the website at terathreshold.com (the "Site") and related services (together, the "Service"). By using the Service you agree to the practices described here. If you do not agree, please do not use the Service.
1. Information we collect
Information you provide
- Account information. When you sign in with Garmin we receive only an identifier for your Garmin account; Garmin does not share your email address or name with us. If you sign in with Apple, we receive the identifier and email address Apple shares with us.
- Body check-ins. Areas of your body you mark as tight, sore or painful, with the severity and date. This is health information and you choose whether to enter it.
- Profile settings. Your birth year (used to seed a heart-rate estimate until your training data refines it), unit preferences, time zone, theme and notification settings.
- Beta requests. The email address you enter on the Site to join the TestFlight beta. We pass it to Apple so TestFlight can send your invite, and keep a record of the request.
- Support messages. Anything you send us at [email protected].
Information from connected services
- Garmin. With your authorization, we receive your activities and activity files (route, pace, heart rate, cadence, running dynamics such as ground contact time, vertical oscillation, stride length and left/right balance, and power if a compatible sensor is present), your Garmin profile, and wellness summaries Garmin makes available such as sleep and heart-rate variability. Historical activities are imported only if you grant Garmin's historical-data permission. Our access is read-only: we never write to your Garmin account.
- Withings (optional). If you connect a Withings account, we receive weight measurements, sleep summaries and heart-rate measurements that Withings makes available.
- Body-composition scales. If your Garmin account includes scale measurements, we receive weight and body-composition values.
We do not currently read data from Apple Health, Strava or any other service. Some builds of the App may ask for Apple Health permission; we do not read or upload Apple Health data today and will update this policy before we do.
Information collected automatically
- Device and app data. A device token for push notifications, your app version, your IP address, and technical logs (request identifiers, timestamps and error messages) needed to run and troubleshoot the Service.
- Subscription status. Whether your account is on a free plan, a trial or a paid subscription, and the associated App Store transaction identifiers. Apple processes your payment; we never see your card details.
- Site visits. Our Site is hosted on Cloudflare and loads fonts from Google Fonts. Those providers receive your IP address and standard request data when the page loads. The Site sets no tracking cookies and uses no analytics scripts.
Notice at collection
For California residents, the categories of personal information we collect, where it comes from, why we use it and how long we keep it:
| Category | Examples | Source | Purpose | Retention |
|---|---|---|---|---|
| Identifiers | Garmin or Apple account identifier, email address (Apple sign-in or beta request), device token, IP address | You, Garmin, Apple, your device | Sign-in, notifications, security | Life of your account |
| Health information (sensitive) | Heart rate, heart-rate variability, sleep, weight, running dynamics, body check-ins, our computed scores | Garmin, Withings, you | Providing the analysis you request | Life of your account |
| Precise geolocation (sensitive) | GPS routes inside your activity files | Garmin | Pace, elevation, terrain and race analysis | Life of your account |
| Commercial information | Subscription tier, trial status, App Store transaction identifiers | Apple, our systems | Managing your subscription | Life of your account |
| Internet or network activity | Request logs, error logs, app version | Your device | Running and troubleshooting the Service | Rotated on a short schedule |
| Profile settings | Birth year, units, time zone, theme, notification preferences | You | Personalizing the Service | Life of your account |
We use sensitive personal information only to provide the Service you request and never for advertising or profiling unrelated to the Service. We have not sold or shared personal information in the preceding twelve months and do not do so now.
2. How we use information
- To compute and show you your analysis: form scores, durability, training load, injury-risk scores, heatmaps, race predictions, training paces, heart-rate zones and coaching suggestions.
- To keep your history so you can compare runs over time.
- To send notifications you have enabled, such as when your profile is ready, when a run has been analyzed, or when your injury-risk level changes.
- To provide, maintain, secure and improve the Service, including diagnosing errors.
- To manage your subscription and trial.
- To respond to your support requests.
- To comply with law and enforce our Terms of Service.
Our analysis is computed by our own software from your data. It is designed to inform your training decisions, not to diagnose or treat any condition. See the Terms of Service for the full health disclaimer.
3. How we share information
We do not sell your personal information and we do not share it with advertisers. We share information only as follows:
- Service providers. We host the Service on Amazon Web Services in the United States, where your data is stored and processed. Apple processes App Store purchases, delivers push notifications and sends TestFlight invitations to the email address you give us for the beta. Cloudflare hosts the Site and stores beta requests. These providers process data on our behalf under their own security commitments and do not use it for their own purposes.
- Connected services. Garmin and Withings receive the authorization requests needed to connect your account and know that you have connected it. We do not send your analysis back to them.
- Legal. We may disclose information if required by law, subpoena or legal process, or to protect the rights, safety or property of TeraThreshold, our users or others.
- Business transfers. If TeraThreshold is involved in a merger, acquisition or sale of assets, your information may be transferred as part of that transaction. We will notify you before your information becomes subject to a different privacy policy.
4. Security
The credentials that let us read your Garmin or Withings data are stored encrypted at rest using AWS Key Management Service. Your sign-in is handled by Garmin or Apple and by AWS Cognito; TeraThreshold never sees your Garmin or Apple password. Data moves between the App and our servers over encrypted connections. No system is perfectly secure, and we cannot guarantee absolute security, but we work to protect your information with appropriate technical and organizational measures.
5. Retention and deletion
We keep your information for as long as your account exists so that your history and baselines remain available.
You can delete your account from the App under Settings. Deletion is scheduled with a 30-day window during which you can cancel it from Settings > Account in the App. At the end of that window we revoke our Garmin authorization, delete the credentials we hold for Garmin and Withings, and permanently delete your account, activities, analysis, check-ins and files from our systems. Copies in encrypted backups are purged on the backup rotation schedule. We keep a minimal record of the deletion request (account identifier, email address if we have one, and dates) for 24 months to show that the deletion was carried out. Disconnecting Garmin from Settings without deleting your account revokes our access but keeps your history until you delete the account.
You can also remove TeraThreshold's access at any time from your Garmin Connect account settings. Because Withings does not let us revoke authorizations on your behalf, remove TeraThreshold from your Withings account settings if you want it gone there too.
6. Your choices and rights
- Access and correction. Your activities, analysis and settings are visible in the App. Contact us for a copy of your data in a portable format.
- Deletion. Delete your account from Settings as described above, or email us.
- Notifications. Turn push notifications off in the App's Settings, or in iOS Settings for TeraThreshold.
- Connected services. Disconnect Garmin or Withings from the App's Connected Services, or from the provider's own settings.
Depending on the state you live in, you may have additional rights under laws such as the California Consumer Privacy Act (as amended by the California Privacy Rights Act) and similar state privacy laws, including the right to know what personal information we collect and how we use and share it, to access, correct, delete or port your data, to limit the use of sensitive personal information such as health data, and to opt out of the sale or sharing of personal information. We do not sell or share personal information for cross-context behavioral advertising. To exercise any right, email [email protected] or, for deletion, use Settings in the App; you may also designate an authorized agent to act for you. We verify requests by matching them to your signed-in account or to the email address on file, and respond within the time required by applicable law. We do not discriminate against you for exercising your rights.
7. United States only
The Service is offered to users in the United States and our servers are located there. If you use the Service from outside the United States, you do so on your own initiative and your information will be processed in the United States.
8. Children
The Service is not directed to children and we do not knowingly collect information from anyone under 16. If you believe a child has provided us with information, contact us and we will delete it.
9. Beta software
While the App is distributed through Apple's TestFlight program, Apple also collects crash logs and usage data under the TestFlight terms and Apple's privacy policy. Beta versions may change how data is collected or processed; we will update this policy when they do.
10. Changes to this policy
We may update this policy from time to time. We will post the new version at terathreshold.com/privacy with a new effective date and, for material changes, notify you in the App or, where we have an email address for you, by email before they take effect. Continued use of the Service after the effective date means you accept the updated policy.
11. Contact
Questions or requests about your privacy: [email protected].