Log your food.Then scroll.
Anvil is an Android app that keeps Instagram, TikTok and YouTube locked until your meals are in MyFitnessPal. It also stamps your daily progress photo and ranks your lifts from Hevy, so you can see the work add up.
Free beta for Android. iPhone isn't supported yet.
What Anvil does
Your apps open when the food is logged
Anvil reads your MyFitnessPal diary through Android's Health Connect, so it knows whether you actually logged, not whether you said you did.
- You pick the rule, like 3 meals by 22:00, and the apps to lock.
- Reminders keep coming until the meals show up.
- One 15-minute emergency unlock a week for days that go sideways.
Miss a day and a streak freeze saves you. You get three a month.
A progress photo a day, stamped
Take your photo, type your weight, and Anvil stamps it with the day number, date and weight. Yesterday's pose shows faintly on the camera so every shot lines up.
- Day 1 next to today, a weight trend line and a timelapse.
- A weekly recap card you can save or share.
- Photos stay on your phone. More on that below.
Ranks for every muscle
Connect Hevy and Anvil compares your lifts with people of your bodyweight, from Rookie to Elite. Beginners climb fast, which is the fun part.
- A rank for chest, back, legs, shoulders, arms and core.
- Based on your best lifts from the last 8 weeks.
- Needs Hevy Pro for the connection.
Your photos never leave your phone
Anvil has no accounts and no servers of its own. Photos, weights and streaks are stored on your device. The app only talks to Hevy with your own key, and you can export or delete everything whenever you want.
Get the beta first
Anvil is in testing now. Join the list and you'll get an email when the Android beta opens. The optional questions help decide what to build next and whether Anvil stays free.
One email when the beta opens, a few updates after that. No spam, and you can leave any time.
Questions
Does it work on iPhone?
Not yet. Anvil depends on Android's Health Connect to check your food log and on Android permissions to lock apps. Pick iPhone on the form if you'd want it, so we know how many people are asking.
Do I need MyFitnessPal and Hevy?
MyFitnessPal (or another food app that writes to Health Connect) is needed for the food lock and streak. Hevy is only needed for ranks, and the connection needs Hevy Pro. Photos and weight tracking work without either.
Can I turn the lock off?
Yes, any time in the app's settings. There's also an emergency unlock once a week if you can't log food that day. Anvil is about building a habit, not punishing you.
Will it be free?
The beta is free. Whether the full app costs anything depends partly on what people answer on the form above.
Is Anvil made by MyFitnessPal or Hevy?
No. Anvil is an independent app made by one student developer. It isn't affiliated with or endorsed by MyFitnessPal, Hevy, Instagram, TikTok or YouTube.