Privacy Policy

The short version: your data stays on your devices. LiftSense is made by Jacob Caesar. This policy explains what information the app uses and where it goes.

What the app stores

• Your profile: name, age, sex, bodyweight, experience level, training goal, units, and your gyms and their equipment.
• Your training: workouts, sets, reps, weights, rest times, workout reviews (effort, how you felt, notes and photos you add) and journal entries.
• Learning data: which exercises you keep, swap or skip, so suggestions fit you better.
• Motion data from Apple Watch: wrist movement is processed on the watch during a workout to detect exercises and count reps. Raw motion data isn't kept after each set; only a small summary is saved to help detection learn your style.

All of this is stored on your iPhone and Apple Watch. It is never uploaded to us or any server we run, and we cannot see it.

iCloud backup & sync

If you're signed in to iCloud, LiftSense backs up your workouts, gyms, templates, journal and settings to your own private iCloud storage, so you can restore them on a new device and keep them in sync across your devices. This data is held by Apple under your Apple Account — we have no access to it. You can turn this off in Settings → iCloud.

Health records, body measurements and Apple Health data (such as heart rate) are never stored in iCloud.

Health records

The Health tab lets you store medical results you choose to enter — for example blood tests, blood pressure, scans, appointments and body measurements — along with photos or PDFs of reports. These records:

• are stored only on your iPhone, encrypted by iOS whenever your phone is locked;
• are never uploaded to iCloud, to us or to anyone else, and are never sent to the AI Coach;
• can be locked with Face ID, and deleted at any time in Settings → Health records.

LiftSense only stores and charts what you enter. It does not interpret results, supply reference ranges or give medical advice. You can choose to share a record yourself using the share button.

Apple Health

If you allow it, LiftSense saves finished workouts (type, time and calories) to Apple Health, and reads your heart rate during workouts on Apple Watch and your latest body weight.

Health data is used only to provide these features. It is never sold, never used for advertising, never shared with third parties, and never uploaded by LiftSense to iCloud or any other server. (Like all app data, it can be included in your own device backup.) You can change these permissions at any time in the Health app.

Optional AI Coach

By default the AI Coach answers using logic built into the app, and nothing leaves your device.

If you choose to add your own Anthropic API key in Settings and agree to the in-app permission prompt, then when you ask the coach a question the app sends the following to Anthropic (the company that makes Claude) to generate the answer:

• your messages to the coach,
• your profile (age, sex, bodyweight, experience, goal and gym equipment),
• your current muscle recovery, and
• a summary of your last 5 workouts.

This is sent directly from your device to Anthropic using your API key. Anthropic's handling of that data is covered by Anthropic's own privacy policy and terms. You can stop this at any time by turning off "Share training data with Claude" or removing your key in Settings → AI Coach.

Notifications, photos and motion

• Notifications are used only for the rest timer.
• Camera: form check analyses your body position live, on your iPhone, to count reps and give cues. Video is never recorded, saved or uploaded. The camera is also used, when you choose, to photograph machine settings and scan documents or reports, which are stored on your iPhone.
• Text recognition of scanned reports happens on your iPhone; nothing is sent anywhere.
• Siri and voice coach: Siri requests are handled by Apple under Apple's privacy policy. Voice coach speech is generated on your device.
• Injuries, goals and machine settings you enter are stored on your iPhone only.
• Photos and files you choose to add to a journal entry, health record or document are stored with it.
• Face ID is used only to unlock your health records, if you turn that on.
• Motion & Fitness access is used only for exercise detection.

Tracking and advertising

LiftSense has no ads, no analytics and no tracking, and does not share data with data brokers.

Children

LiftSense is not directed at children under 13.

Deleting your data

Settings → Reset all data deletes everything LiftSense has stored. Deleting the app also removes its data. Workouts already saved to Apple Health can be deleted in the Health app.

Changes

If this policy changes, the new version will be posted on this page with a new date.

Contact

Questions about privacy: jacobbcaesar@gmail.com