Kit — Privacy Policy

Last updated: 5 July 2026

Kit is a workout tracking app made by Joint Effort Software. This policy describes what

data the app handles and where it goes. The short version: your training data lives on

your device; everything else is optional and under your control.

Data stored on your device

Your workouts, exercises, sets, personal records, program customisations, and feedback

are stored in a local database on your device. This data never leaves your device unless

you enable one of the optional features below. Deleting the app deletes this data.

Optional account and cloud backup

You may create an account (email/password, or Google sign-in) to enable cloud backup.

If you do:

• We store your email address and authentication identifiers with our backend provider

(Supabase), hosted in the European Union (eu-west-1).

• After each saved workout, a snapshot of your training data is backed up to your

account. Only you can access it — access is enforced per-user at the database level.

• Google sign-in shares your Google account email and basic profile with the app; we do

not receive your Google password or any other Google data.

Account deletion is available in the app (Account screen → Delete account). It

permanently removes your account and cloud backup. Data on your device is kept.

AI workout suggestions

When you generate a workout while online, the app sends training context — recent

exercises, muscle-group recovery status, difficulty feedback, and any rejection notes

you typed — to Anthropic's Claude model through our server, which holds the API

credentials. No name, email, or account identifier is included. The server forwards

requests and does not store them. Anthropic processes this data per their

commercial terms. If you are

offline, workout generation runs entirely on-device.

Crash reporting

The app sends crash reports to Sentry (stack traces, device model, OS version, app

version) so we can fix bugs. Crash reports do not include your training data.

Optional webhook

If you configure a webhook URL in Settings, the app sends your workout summaries to

that URL after each save. This is entirely user-configured — you choose the recipient,

and it is off by default.

What we don't do

• No advertising, no ad SDKs
• No analytics or behavioural tracking SDKs
• No sale or sharing of personal data with data brokers
• No data collection from users who don't create an account

Beta testing

Beta builds are distributed through Firebase App Distribution, which processes tester

email addresses for the purpose of delivering builds.

Contact

Questions or data requests: navjotk@gmail.com

Changes

We will update this page when data practices change, and note material changes in the

app's release notes.