The last gym app
you'll ever need.
Track every rep. Challenge your friends. Get AI coaching built on your real data. Built by someone who actually lifts.
🔥 Free forever — no ads, no contracts, no BS
Track every rep. Challenge your friends. Get AI coaching built on your real data. Built by someone who actually lifts.
🔥 Free forever — no ads, no contracts, no BS
Smart auto-fill remembers your last session. Just tap, adjust, done. PR detection happens instantly — you'll know before you even rack the bar.
Don't know the machine? Point your camera at it. Our AI identifies the equipment and shows you every exercise you can do — in your language.
Challenge anyone to a 1v1 rivalry backed by real training data. Bet virtual currency, track progress side by side, and settle it once and for all.
See your entire week at a glance. Recovery status per muscle group, estimated calories, water tracking — everything you need to train smarter.
Most gym apps look good in screenshots but die after day 3. WeightFight is different — it's built to make you come back.
Every workout, PR, and streak earns Gains — virtual currency you spend on cosmetics, profile boosts, and rivalry bets.
Daily login rewards, workout streaks with fire badges, and streak insurance so one sick day doesn't erase your progress.
Not generic advice. An AI coach that reads your actual history, spots weak points, and builds sessions for YOUR level.
Post workout selfies, share stories, tag your gym crew. Your profile is your fitness resume — built automatically.
36 languages. 1,500+ exercises translated. Use the app in Japanese, Arabic, Swedish — whatever feels like home.
No trial that expires. No ads. No "premium to unlock basic features." The full app is free. PRO is just extra sauce.
Join thousands of lifters who stopped using apps that collect dust. WeightFight makes training addictive — in a good way.