Mariposas vs Hevy

The honest take

Where Hevy stands out: free, full-featured logging, social feed and routine sharing, good exercise library. Its social layer is feed-based, not a reward loop, there are no collectible rewards or pet/streak mechanics designed to build the habit itself.

Pick Hevy if you want a free, polished logger with a social-feed community and don’t care about gamification.

Pick Mariposas if consistency is your real obstacle, a pet for every workout, streaks and friends are built to make showing up stick.

Full disclosure: this comparison is published by the maker of Mariposas; we keep Hevy’s strengths honest so it stays genuinely useful.

What Hevy Gets Right

Hevy is a genuinely well-built workout tracker. The logging experience is fast and clean: you load a routine, hit sets, rest, repeat. The exercise library covers hundreds of movements with muscle diagrams, and you can build custom exercises when yours aren't listed. Volume and one-rep-max charts update automatically, so progress over months is visible without any manual math.

The social feed is a real differentiator among free apps. You can follow other lifters, share routines publicly, and pull workouts that someone else built directly into your own library. For a lifter who wants to browse proven programs or stay loosely accountable to a training community, that feed adds something most free loggers don't offer. The app also stays free for core features at a level that competitors often put behind a paywall.

On the pure data side, Hevy does its job well. If your goal is an accurate, searchable history of every set you've touched over the last two years, it delivers that reliably.

Where the Two Apps Are Solving Different Problems

Hevy is built around logging. Mariposas is built around the habit of showing up. That sounds like marketing framing, but the functional difference is concrete. In Hevy, you open the app when you're already heading to the gym. In Mariposas, the collectible pets, streak mechanics, and friend activity are designed to pull you toward the next session when motivation is flat.

Mariposas tracks real logged activity: lifted sessions, runs, classes. Each completed workout feeds into a streak and earns in-app rewards tied to a creature you're building over time. That reward loop is borrowed from behavioral research on habit formation. A Hevy social feed shows you what others did; Mariposas makes your own consistency the thing with stakes attached to it.

Neither approach is universally better. A lifter with twelve years of consistent training and a love for data probably doesn't need a streak to stay on track. Someone rebuilding a routine after a long break, or a person who knows they respond well to small, frequent rewards, might find the gamification layer genuinely useful rather than gimmicky.

Picking the App That Fits You

Choose Hevy if your primary need is a polished, free training log with a community attached. If you already have the habit locked in and want clean progress charts plus the ability to browse and share routines, Hevy handles that without costing anything. The social feed works best when you're looking for programming inspiration or mild accountability through visibility.

Mariposas fits better if you've noticed that motivation to start a session is where you lose consistency, not motivation to finish one. The collectible and streak design targets that specific friction point. It also suits people who want their friends in the same system so that social pressure flows through shared progress rather than a passive feed.

The two apps aren't really competing for the same use case. One person might reasonably use both: Hevy for detailed set-by-set logging and Mariposas for the accountability layer that keeps the streak alive.