STRN

Your strength. Tracked.

STRN — workout tracking screen

Log every rep.
Effortlessly.

Quick Start
Start empty or from a template. One tap to begin.
Weight x Reps
Fast numeric input with haptic feedback.
Rest Timer
Auto-start with push notifications. Never lose track.
Crash Recovery
Auto-saves every set. No data ever lost.
STRN — workout tab with templates

100+ exercises.
Zero guesswork.

A comprehensive library with muscle group filters, equipment types, and detailed instructions for every exercise.

STRN — exercise library with search and filters
12 Muscle Groups, 8 Equipment Types
Find exactly what you need, fast.
Search & Filter
Instant search by name, muscle group, or equipment.
Custom Exercises
Add your own exercises with custom parameters.
Exercise Instructions
Step-by-step technique guides for every exercise.

Structured training.
Your way.

Built-in Programs
StrongLifts 5x5, Push Pull Legs, Full Body — ready to go.
Create Your Own
Custom templates and programs with weekly schedules.
Weekly Schedule
See which days you train and track program progress.
One-tap Start
Launch today's workout from any template instantly.
STRN — training programs with weekly schedules

See how far
you've come.

0
Week Streak
0
Volume Lifted
0
Personal Records
STRN — progress dashboard with heatmap and PRs
GitHub-style Heatmap
See your consistency at a glance. Every workout counts.
Weekly Comparison
Volume, workouts, and duration — week over week.
Auto PR Detection
Personal records detected automatically. Celebrate every milestone.
Full History
Every workout, every set, every rep — all searchable.
STRN — body weight and measurements tracking

Beyond
the barbell.

Track your body's transformation alongside your training progress.

Body Weight Chart
Track weight over 30, 90, or 180 days with trends.
11 Measurements
Chest, waist, hips, arms, thighs, calves, and more.
Trends & Changes
See deltas for every measurement over time.

Built for
lifters.

Offline-First

Works without internet. All data stored on device.

Dark Mode

Auto, light, or dark theme. Easy on the eyes.

Multi-language

English, Russian, and Serbian. More coming soon.

Data Export

JSON backup in one tap. Your data, your control.

Rest Timer

Configurable timer with push notifications.

Crash Recovery

Auto-saves after every set. Never lose a workout.

Start tracking today.

It's free.