Repline
A strength training app that writes your plan and tells you exactly what to lift next, with loaded-bar graphics, rest timers and progress charts.
Screenshots
Screenshots supplied by the seller.
Description
Most workout logs only remember what you did. Repline decides what you should do next. Tell it how many days you can train, what equipment you have and your goal, and it builds a full plan. Before every session it gives each lift a target weight and rep count, based on your last sessions.
The engine uses double progression, a method coaches use widely: add reps within a range, then add weight and start again. A single bad day repeats the target rather than punishing you. Two sessions short in a row brings an automatic 10% deload. Plans cover two to five days a week, with full gym, dumbbell-only and no-equipment versions, and exercises swap automatically to suit.
It's made for the gym floor, with big buttons for tired hands. Each barbell lift shows the bar loaded in competition plate colours, with exactly what goes on each side and suggested warm-up sets. Ticking off a set starts the rest timer, which keeps correct time even if your phone sleeps, and a workout in progress survives closing the app.
Progress shows your estimated one-rep max for every lift, personal records, and hard sets per muscle for the week, so weak spots stand out. Plate and one-rep max calculators, kg or lb, and backups are included. It's plain JavaScript with no server or running costs, ready for a gym or personal trainer to brand as their own.
Condition
Development stage: Working prototype (seller-declared)
Seller-declared: provided by the seller, not independently verified by SellMyVibe.
- Solo creator
- Mainly AI-generated
- Under one month in development
- Mobile-friendly
- Tests included
- Setup guide included
- Demo available
What works
- Plan builder for 2 to 5 days, three equipment levels and two goals
- 22 exercises with automatic swaps for your equipment
- Automatic targets using double progression
- Deloads after two short sessions in a row
- Live workout logging with steppers for weight and reps
- Loaded-bar graphic in competition plate colours
- Warm-up sets worked out for each barbell lift
- Rest timer with +30s, sound and vibration where available
- Workouts that survive closing the app
- Estimated one-rep max chart for every lift
- Personal records and weekly sets per muscle
- Plate and one-rep max calculators
- kg and lb, plus backup and restore
- Eight weeks of example data to explore
- 21 engine tests and an automated browser run through a whole workout
What’s unfinished
- 22 exercises only, with no demo videos or form instructions
- You can't edit a plan or add your own exercises
- Plate maths assumes a full set of plates and one bar weight
- No accounts or cloud sync: progress stays in one browser unless backed up
- No wearable, Apple Health or Google Fit connection
- English only
- A coach hasn't reviewed the plans, and it hasn't been used in a real gym or on a real phone
Included assets
Full source code
Test suite
Documentation
Technologies
HTML, CSS, JavaScript (ES modules), SVG, Web Audio API, localStorage, Node test runner
Setup requirements
Upload the files to any static web host. To try it locally, run python3 -m http.server and open http://localhost:8000. Run the tests with npm test (Node 20 or newer).
Dependencies and ongoing costs
None. It's a static site that runs free on any web host.
Known limitations
Repline gives general fitness guidance, not medical advice or personal coaching. It doesn't check technique or health conditions, and targets are based only on logged numbers. It tells users to get advice if they're new to lifting or have a health condition, and to stop if something hurts.
Listings are reviewed for completeness and clarity before publication. Approval is not a guarantee of quality, ownership, security or commercial success. Read the details and ask questions before buying.