Privacy Policy

Last updated: October 28, 2026

ChambersApps ("we", "our", or "us") operates the LiftTogether mobile application. This page explains what personal information we collect, how we use it, who we share it with, and the choices you have.

Information We Collect

• Phone number (for account sign-in)
• Your profile: display name, weekly workout goal, streaks and friend code
• Fitness data you log: workouts, sets, reps and weights, notes you add to exercises, plans, custom exercises and body weight
• With your permission, workouts and step counts from Apple Health
• Your food log: the foods you add, amounts, calories, protein, carbs and fat, which meal they were, barcodes you scan, and your daily food goals. Photos of meals or nutrition labels you choose to look up are used for the lookup and not stored
• If you use progress photos: the front, side and back photos you take or choose, the date and body weight of each check-in, your confirmation that you're 18 or older, your reminder choice, and the coach's notes on your monthly updates
• Photos, videos and captions you post, and photos you submit for group check-ins
• Social activity: friends, groups, kudos, comments and nudges
• If you use the AI coach: your coach profile (goals, experience, usual weights, height, injuries or limitations, training preferences and coaching style), your questions and the coach's replies
• Coach mode subscription status from Apple (which plan and when it renews or ends)
• A device token for push notifications
• Crash, diagnostic and app usage data

How We Use Information

We use collected data solely to:

• Provide and maintain app functionality
• Authenticate users
• Enable social fitness features, such as friends, feeds, groups and nudges
• Provide AI coaching and food estimates, if you choose to use them
• Send notifications and check-in reminders, which you can turn off
• Improve app stability and performance
• Prevent fraud and abuse

Contacts

Contacts access is optional and only requested when you tap "Find friends from contacts". Phone numbers from your contacts are hashed on your device and compared with the hashed numbers of LiftTogether users to find friends. Your contacts are never uploaded or stored. If you invite someone by phone number, a hashed copy of that number is kept for up to 30 days so you're connected automatically when they join.

Apple Health

If you allow it, LiftTogether reads your workouts and step counts from Apple Health to log workouts and complete group tasks. Apple Health data is never used for advertising or marketing and is never sold. It is shared only with the AI coach, as described below, and only if you turn the coach on.

AI Coach

The AI coach is optional. Nothing is sent until you agree on the coach setup screen. Once you do, each time you ask the coach something, LiftTogether sends the following to Claude, an AI model made by Anthropic, to generate a reply:

• Your logged workouts from the last eight weeks, including workouts imported from Apple Health and notes you add to exercises
• Your body weight entries
• If you log food, your food log from the last seven days (daily totals and today's foods) and your food goals
• Your coach profile
• Your question and your recent conversation with the coach

The photos and videos you post, your phone number, contacts and friends' data are never sent. Progress photos are sent only when you ask for coach notes on them, as described under Progress Photos. Anthropic processes what we send only to provide coach replies, food estimates and photo notes and, under its commercial terms, does not use it to train its models. Replies are saved to your account so you can read them again. You can delete your coach profile and replies at any time in Settings → AI coach → Delete coach data.

Food Log

Your food log is stored in your account and only you can see it. Friends and groups never see it.

• When you type a food, such as "2 large eggs and 2 strips of bacon", the text you typed is sent to Claude, an AI model made by Anthropic, to estimate its calories, protein, carbs and fat. Nothing else about you is sent with it.
• When you take or choose a photo of a meal or a nutrition label, the photo (and any note you add, such as "I ate half") is sent to Claude, an AI model made by Anthropic, to work out the food and its numbers. LiftTogether doesn't store the photo. The app asks before the first one.
• When you scan or type a barcode, our server looks the number up in Open Food Facts, a public food database. Only the barcode number is sent, not who scanned it.
• Scanning a barcode, picking a recent food or entering the numbers yourself sends nothing to Anthropic.
• The coach also sees your food log, as described under AI Coach.

You can edit or delete any food entry at any time.

Progress Photos

Progress photos are optional and only for adults: you confirm you're 18 or older before the feature turns on. Your progress photos are stored privately in your account and only you can see them. They are never posted or shown to friends or groups, and we don't use them for anything other than showing them to you and, if you ask, the coach notes described below.

Photos are sent to the AI only when you tap "Get coach notes" on a monthly update, and only if you've turned on the AI coach. Then the photos from the two check-ins being compared, their dates and body weights, and that month's training numbers (workouts, new personal bests, body-weight change and sets per muscle) are sent to Claude, an AI model made by Anthropic, to write notes on what has changed. The notes are saved to your account.

You can delete any check-in at any time, which deletes its photos.

Purchases

Coach mode subscriptions are processed by Apple. We receive the subscription's status so we can turn coach mode on or off, but we never see or store your payment details. You can manage or cancel your subscription in your Apple ID settings.

Tracking & Advertising

We do not use personal data for third-party advertising or cross-app tracking. We do not sell or share personal data with data brokers.

Service Providers

We share data only with these services:

• Google Firebase, for sign-in, data and photo storage, notifications, crash reports and app analytics
• Anthropic, for AI coach replies, nutrition estimates for foods you type or photograph, and progress photo notes, only when you use those features
• Open Food Facts, to look up barcodes you scan (only the barcode number is sent)
• Apple, for in-app purchases and Apple Health

Data Storage

User data is securely stored using Firebase services provided by Google. Progress photos are kept in Firebase Storage, where only your account can open them. Reasonable safeguards are implemented to protect user information.

Your Rights

You can delete any food entry or progress check-in in the app at any time. You can delete your account and all associated data, including your food log and progress photos, at any time in the app (You → Settings → Delete account), or by contacting us. You can delete your AI coach data separately in Settings → AI coach.

Children

LiftTogether is not intended for children under 13, and we do not knowingly collect personal information from them. Progress photos are only available to users who confirm they are 18 or older.

Changes

If we change this policy, we will update the date at the top of this page.

Contact

If you have questions about this Privacy Policy, contact:

Chambersmalouf.dev@gmail.com