Privacy policy
Last updated: November 12, 2026
The short version. Isomify uses your heart rate, wrist motion and the classes you log only to estimate and show your training. We don't sell your data, show ads, or use analytics or tracking tools. Your classes are private to you. You can delete your account and everything synced to it from inside the app at any time.
Isomify ("Isomify", "we", "us") is an iPhone and Apple Watch app operated by Bailey Wallace. This policy explains what the app collects, why, and the choices you have. Questions: support@isomify.com.
What we collect
From Apple Health, only with your permission: heart rate, resting heart rate, and workouts. Isomify uses these to score your classes. You can change this permission at any time in the Health app or in iPhone Settings.
From your Apple Watch during a class: heart rate and wrist motion (movement, rotation and steadiness). Motion is reduced on your devices to short summaries, such as how long a hold lasted and how steady it was. Raw sensor recordings are not uploaded or kept.
What you enter: your age, weight, gender, training goals and weekly goal (used to personalize estimates); effort ratings, notes, and any instructor or studio names you add to a class; and, if you choose, a display name and username.
Account information: to sync your classes, the app creates an account with a random identifier, without asking for your name or email. If you choose Sign in with Apple, we also receive an Apple user identifier and the name and email Apple shares with us. Apple lets you hide your real email behind a private relay address.
Purchases: Isomify is currently free. If paid features are offered later, payments are handled by Apple. A subscription service, RevenueCat, would receive purchase status linked to your app account ID, but no payment card details.
What we don't do
- We don't sell or rent your data, and never will.
- We don't show ads, and we don't use your data for advertising or marketing.
- We don't include analytics, crash-reporting, advertising or tracking software.
- We never share health data from Apple Health with third parties for any purpose other than running the app for you, and never store it in iCloud.
How we use it
- To estimate your effort (IsoScore), time under tension and calories, and show your history, trends and monthly report.
- To keep your classes in sync and backed up across your devices.
- To send notifications you've turned on, such as reminders or the monthly report note. These are scheduled on your phone.
- To answer you when you contact support.
Where it's stored, and who can see it
Your data is stored on your devices. Classes you've synced, and your profile, are also stored in our database, which is hosted by Supabase, a cloud service provider that processes it on our behalf. Data is encrypted in transit.
Your classes are private. Only you can see them. If you set a username and display name, other Isomify users can see those (for example, to use your invite code).
Apple Health: Isomify writes to Apple Health only if you turn on "Save to Apple Health" in the app. It then saves classes recorded on your phone as workouts.
How long we keep it, and deleting it
We keep your synced data while you have an account. You can delete your account at any time in the app: Profile → Privacy → Delete account. This permanently deletes your account and everything synced to it from our database right away, and erases what Isomify keeps on your phone. Copies may remain in our hosting provider's encrypted backups for a limited period (typically up to 30 days) before they are overwritten. Workouts already saved to Apple Health stay in Health, where you can delete them.
You can also email support@isomify.com to ask for a copy of your data, a correction, or deletion.
Your rights
Depending on where you live (for example California, Washington, other US states, the UK or the EU), you may have rights to access, correct, delete, or receive a copy of your personal data, to withdraw consent, and to object to certain uses. We honor these requests for everyone, wherever you live. Email us and we'll respond within 30 days. We won't treat you differently for using these rights.
Consumer health data (including Washington's My Health My Data Act): heart rate, workout and effort data are health data. We collect them only to provide the features you use, with your consent through Apple Health and the app's permissions, and we never sell them. You can withdraw consent by turning off Health access, and delete the data as described above.
Children
Isomify is not intended for children under 13, and we don't knowingly collect data from them. If you believe a child has used Isomify, contact us and we'll delete their data.
Security
We use encryption in transit, per-user access rules in our database, and the security of Apple's platforms to protect your data. No system is perfectly secure, so please keep your devices protected with a passcode.
Changes
If we change this policy, we'll update the date above, and tell you in the app before any change that affects how your health data is used.
Contact
Bailey Wallace, Isomify — support@isomify.com