Strain is a focused fitness app for lifters who want to train, log, and improve — without subscriptions, sign-ups, or distractions.
YOUR TRAINING TOOLKIT
• Home — Start your daily workout, track your weekly volume ring, streak, and recent sessions at a glance.
• Workout — Run live sessions with timer, set logging, rest countdown, and haptic feedback.
• Library — Browse and build your exercise library and custom training programs.
• Pulse — Review stats, weekly volume heatmap, personal records, body metrics, and session history.
BUILT FOR SERIOUS TRAINING
• Log sets with reps, weight, and rest time
• Pre-built programs plus custom program builder
• Automatic PR tracking after every completed session
• Weekly volume goals you can customize
• Body weight and body fat logging
• Session history with full set breakdown
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