mobius
The social fitness app with no leaderboards or metrics
What it does
Most fitness apps are built around data. mobius is built around community. Share your marathon training, your PT exercises, your yoga class, and your 20-minute walk with a community that cheers it all on equally. No leaderboards. No pace comparisons. No follower counts. Just honest movement and the people who keep you going.
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- ISI spent 2 years building an iOS app no one asked for2025 · basamasa.github.io · ▲7
i built a heart rate zone training app for runners. ios + apple watch. custom zones, real-time haptics, post-run graphs. all the “smart” stuff you’d expect. but i never talked to a single runner before building it. not even myself lol. started as a thesis → kept building → added features → added a paywall (€4/month!) → launched it → and yeah… no one cared. zero feedback. zero users. just code in the void. i recently made the whole thing free. not trying to “sell” anything now — just seeing if it’s actually useful, and listening this time. curious how others handle this. ever build…
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