Coming first to iOS

Your protein log. Your next appointment, better prepared.

Track protein and water quickly, keep weight and shot notes together, and bring a clear report to your next appointment. Built for GLP-1 routines. No account required.

Coming soon to the App Store Coming later to Google Play

Free daily logging. Optional Premium reports and longer trends.

Quick screen with hydration buttons for 8, 12, 16 and 20 oz and protein buttons, showing 64 of 64 oz water and 82 of 80 g protein for the day
Illustrative sample data.

What it does

Three things, done properly.

When appetite is low, every bite counts. Protein Diary keeps the focus on the numbers that matter and stays out of your way.

Protein in grams

Not points, not percentages. Grams, the way your targets are written. Two taps to log a meal, a 310-item protein-forward food library, and daily goals with streaks.

Diary screen listing sample entries for the day with protein and hydration progress bars
Illustrative sample data.

Weight, shots & side effects

A weight log with trends, a simple shot log with reminders, and quick side-effect tags. Everything recorded exactly as you enter it. The app never suggests doses or schedules.

A report for your doctor

One tap builds a clean PDF of your food, weight, shot, and side-effect history, made to bring to your next appointment, so the conversation starts from real data.

First page of a weekly PDF diary report with daily protein and hydration totals
Illustrative sample data.

Discreet by design: the app is called Protein Diary on your home screen, and reminders never mention medication details on your lock screen.

Why this one

One app for the whole thing.

Keep your protein, hydration, weight and shot notes in one simple diary. Protein Diary puts quick manual logging and a report you can bring to an appointment at the center of the experience.

Less, on purpose

Most food apps track everything. When your appetite is gone, that is friction, not help. Protein Diary tracks the few numbers that matter on a GLP-1 and stays quiet otherwise.

Insights screen with the current streak and a free seven-day protein comparison preview
Illustrative sample data.

Food and shot, together

Log protein and hydration alongside your shot history, weight and side effects. Bring the records together in a report for your next appointment.

Yours, not theirs

Your diary is stored locally without a Protein Diary account or diary cloud-sync service. You choose what to export and share; device backups and optional services are explained in our privacy policy.

The part that matters most

No account. No diary sync. No ads. Your diary is stored locally.

No account Nothing to sign up for. Open the app and start.
Local diary Your diary is stored on your device. You choose when to export or share it.
No ads No ad networks, no trackers, no analytics on your health data. Ever.
No trackers here either This website runs zero analytics and zero third-party scripts.

What you log (food, weight, medication, side effects) is health data. The app does not automatically upload your diary to Protein Diary servers. You can choose to share records or send them to support. Read the full privacy policy for the details, including optional crash reporting, purchase services, exports and device backups.

Pricing

Logging is free. Forever.

The core diary will never be paywalled, and neither will your own data. Premium adds depth for people who want longer trends and richer reports.

Free

$0 forever

Everything you need to keep the diary.

  • Protein, hydration, weight, shot & side-effect logging
  • Goals, streaks & shot reminders
  • 30-day weight trend
  • Current-week doctor PDF
  • 7-day protein comparison preview
  • JSON backup & restore of your records, goals and most settings

Premium

$4.99 / month

or $29.99 / year, with a 7-day free trial for eligible customers. The monthly plan has no free trial.

  • Protein, hydration & goal comparisons over 7, 30 or 90 days
  • 90-day weight trend
  • Custom date-range reports, up to 4 weeks, with an optional name or provider line
  • CSV export

Planned launch pricing; purchases are not available yet. Payment is processed by the App Store or Google Play, with Premium access managed through RevenueCat. Cancel anytime in your store account. Prices shown in USD; local pricing set by the stores.

Launch list

Be first to know when it ships.

One email when Protein Diary launches on iOS. Android will follow. No newsletter, no drip campaign, just the launch note.

Join the waitlist by email

Sends a pre-filled email to hello@proteindiary.com. We only use it to send the launch note.

Protein Diary is a personal tracking tool, not medical advice. It records what you enter and reports it back. It never recommends doses, schedules, or treatment. Always consult your healthcare provider about your medication and diet. Protein Diary is not affiliated with any pharmaceutical manufacturer. Terms · Privacy