About Gainflow
Gainflow is a free workout tracker for iOS, Android and the web that keeps gym training and GPS activities — running, cycling and walking — in one history. The journal is free with no limits and no ads; the AI features run on a token pool.
Who builds Gainflow
Dawid Zaręba — Founder and developer
Gainflow is built and run by Dawid Zaręba, a developer based in Poland. He released the first version in June 2025 and writes the app, the web version and the guides on this blog. Many of the features shipped so far started as suggestions sent by users from inside the app.
How the guides are written
The guides on this blog are written and maintained by the same person who builds the app. Found a mistake or something out of date? Write to dawid@gainflow.app — corrections go in.
This article is general educational information about training and nutrition, not medical advice. Consult a doctor or a qualified professional before changing how you train or eat, especially if you have an injury or a health condition.
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