Sweatline

New: swap any exercise for a similar one.

Sweatline is a personal trainer that fits in your pocket. Answer three questions and it builds you a weekly gym plan. Then it walks you through every session, set by set, and keeps track of how strong you are getting.

Everything works offline. There is no account, no server, and no data leaves your phone.

A PLAN BUILT FOR YOU Tell Sweatline your goal, your experience, and how many days a week you can train. It picks a proven split: full body, push/pull/legs, upper/lower, or PPL twice a week. Big lifts come first, with warm-up sets, heavier loads, and longer rests. Smaller lifts come after, with higher reps.

GUIDED WORKOUTS One exercise at a time. Sweatline shows the target weight from your last session, you save each set, and a rest timer counts you down with a buzz when it is time to lift again. The screen stays awake. If you close the app in the middle of a workout, you can pick up exactly where you left off.

SWAP ANY EXERCISE Machine taken? Replace any move with a similar one that trains the same muscles and fills the same role. Swap it just for today, or save the change to your plan.

63 EXERCISES, EXPLAINED Every exercise has an animated figure that shows the movement, a muscle map of what it works, step-by-step instructions, and form cues from a trainer. The language is plain. No gym jargon you have to look up.

SEE YOUR PROGRESS Weekly and lifetime stats, a strength trend for every exercise, and your full session history.

YOUR DATA IS YOURS Sweatline stores everything in a database on your device. It has no internet permission, so it cannot send your data anywhere. Copy a backup to your clipboard whenever you want.

Sweatline is not medical advice. Ask a doctor before you start a new training plan.