... Micha , a solo founder from Poland and a long-time strength & calisthenics enthusiast. I ve been training consistently for almost six years, and during that time I tested a lot of fitness apps from simpleworkout logs to advanced coaching platforms. What I noticed is that many apps either feel too generic or try to gamify everything, while people who train seriously often just want clarity, structure, and real progress tracking. That s why I decided to build ... ... GainTrail. GainTrail is a fitness app focused on structured strength and bodyweight training. It s designed for people who care about progression, training volume, and long-term consistency rather than random