Hey Product Hunt 👋 I built TRN/LOG because I was tired of doing the maths between sets. Every program says "add weight when it gets easy", but no app would tell me how much, for which lift, this week, from what I actually did last week. So TRN/LOG does it: • You log, it decides. Weight, reps and how many reps you had left. From that it works out next session's weight, and each week how many sets every muscle gets. • Every number has a reason. No black box: tap any weight or set count and it tells you why, in plain words. It's rules, not an AI guessing. The AI bits (log a set by voice, swap an exercise, explain your week) are optional and never pick a number. • Built for the gym floor. Big targets for sweaty hands, works offline in a basement, plate math for your actual equipment, and a rest timer that pings your lock screen. • It respects real life. Missed two weeks? It eases you back in instead of asking for last month's weights. It's 14 days free with no card, then $12/month or $90/year. Your data is always exportable as CSV, free. I'd love your feedback, especially from anyone who's tried Hevy, Strong or Fitbod. What made you stop trusting the weights an app gave you?

TRN/LOG

The workout log that works out next week's weights

The workout log that works out next week's weights