Stronger: AI Muscle Filter

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Everyone
5+
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Content rating
Everyone
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About this app

Upload a photo and see how another body would look on you. Stronger uses generative AI
to hand your own photo back with more mass, sharper definition or a more athletic build — and
lets you compare before and after by dragging across the same image.

NINE LOOKS, ONE TAP
Bulk, Cut and Athletic, each in three levels — more muscle, a visible six pack, or
a leaner gym body. All of them sit on the same screen: pick one
and the image is generated right there, without switching screens or filling in forms.
Not convinced? Tap another one.

BEFORE AND AFTER, ON THE SAME PHOTO
The slider runs across the image under your finger, so you see exactly what the muscle
editor changed: the muscle goes on below the neck only, and your face and pose stay
put. Bulk fills out the shoulders, Cut brings out the abs. No collages, no frames: the same
photo, split wherever you want it.

YOUR RESULTS, ON YOUR PHONE
The app keeps your last 30 results in its own gallery, on the phone itself, and you can
reopen any of them in the comparator whenever you like; once you reach 30, the oldest
one makes room for the new one. You can delete them all at once from Settings.

WHAT WE DO WITH YOUR PHOTO, NO SMALL PRINT
Your photo leaves your phone encrypted, goes through an automatic safety check at
Google, then to our AI provider to generate the result, and the result goes through
that same check again, and is never stored on
Stronger's servers. Before your first upload we tell you
exactly who processes the image and under whose policies. No accounts, no sign-up, no
ads.

EVERY RESULT IS MARKED AS AI
Because EU law requires it and because it is the honest thing to do: every result carries
technical image-generation marking that any tool can check. And there is a report button
right on the result screen.

FREE AND PRO
Free: 3 generations a day, with a 10-second wait between them, and no saving or
sharing. Pro: up to 20 a day and 30 a month under fair use, saving and sharing, and no
waiting. The
subscription is billed monthly or yearly and comes with no free trial: the price in
your own currency is right there on the subscription screen, before you decide.

ELEVEN LANGUAGES
English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Russian,
Turkish and Indonesian.

Results
are AI-generated images for entertainment: they predict no real physical change,
and the app gives no medical, fitness or nutrition advice.
AI body editor: add muscle and abs to your gym photo, with before/after
Updated on
Aug 24, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Photos and videos
  • This app may collect these data types
    Financial info, App activity, and Device or other IDs
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Pinch to zoom, and a cleaner result screen:

• Pinch your generated photo to zoom in and look closely.
• Report and compare are no longer next to each other, so you can’t hit the wrong one.
• New colours across the app, warmer and with far more contrast.
• Going Pro shows your own photo, what the yearly plan costs per month, and exactly what you’ll be charged before you tap.