Liftoff turns the gym into a game.
Stronger turns it into a strength system you can read.

Closer than almost any other pair in this category — both rank your strength, give feedback on 400+ exercises, and have friends, leaderboards, and a million-plus lifters. The difference is emphasis. Liftoff is a ranked gym game with logging inside it. Stronger is a strength-tracking system with motivation built around it. Same neighborhood, different center of gravity.

Stronger gives you one Strength Score benchmarked against global standards, rather than a separate rank on every exercise. That's intentional. Per-exercise ranks are fun and broad, but they get unreliable on machines and obscure movements where the number on the stack isn't the force you produced. One Score across the major lifts is harder to game and easier to trust. You still see where you stand and watch it climb — it's just built for serious comparison, not rank-farming.

For some lifters, yes — and anyone who tells you otherwise is selling. Liftoff is better if you want the most game-like app, the bigger community, iPad support, or Strava sharing. Stronger is better if you want a single Strength Score, weak-point analytics, adaptive programming, and motivation that runs through your progress instead of an in-app shop. Different jobs.

Liftoff has a genuinely usable free tier — you can log workouts, build routines, and get ranks on 500+ exercises without paying. The catch is an onboarding flow built to push you toward Pro early, plus an in-app economy of eggs and cosmetics, and multiple Pro prices depending on region and offer. So it's fair to say Liftoff is free enough to test, but more monetized than a minimalist logger once you want the full experience.

It's not that simple, and we won't pretend it is. Stronger is $9.99/month versus Liftoff's roughly $12.99, and Liftoff's annual pricing runs higher on its main funnel — but Liftoff also has a real free tier and cheaper annual plans that some users get. The cleaner difference is that Stronger is a straight subscription for a strength system, while Liftoff layers a currency-and-shop economy on top. Pick on what you want the app to be, not the headline price.

Straight answers, because you'll check anyway. Apple Watch: our story isn't fully consistent — our site references a Watch companion, but the current App Store listing says iPhone-only, and we're firming it up. Liftoff doesn't have a Watch app either, so neither app is the obvious wrist-logging winner. Strava and iPad: no on both, today — and these are rounds Liftoff wins. If either is a dealbreaker, Liftoff is your app, and we'd rather say so than bury it.

This is Stronger's clearest lane. Liftoff's rank system is fantastic for hooking beginners and competitive casual lifters, but experienced lifters start asking harder questions — about weight class, exercise standards, routine control, and whether the ranks reflect real strength. Stronger is built around those: a standardized Strength Score, weak-point analysis, RPE, adaptive progression, and deload suggestions. If you've outgrown rank-chasing, that's the difference. Sharpen it first with our guides to progressive overload and compound lifts.

Not in one tap, and we'll be straight: neither app makes this easy, and Liftoff doesn't publish an export or API on its public surfaces. The good news is the value you came for builds fast because it doesn't depend on old history — your Strength Score and weak-point map start forming from your first few sessions. Rebuild your main routine once, like a push/pull/legs or 5x5, and let the adaptive logic take over. Two to three weeks of logging gets you the read a rank screen never showed.

It depends on why you like Liftoff. If you like the rank-style motivation but want deeper benchmarking, adaptive routines, and weak-point feedback, Stronger is the closest fit — the app most like Liftoff that leans serious instead of game-first. If you mainly want a big social log, Hevy fits. If you want a clean minimalist logger with no gamification, Strong fits. If you only want free rank-style leaderboards, there are lighter apps. We'd rather point you to the right one than pretend we're the only answer.