X3 Tracker vs Rubber Bands

The Official free workout tracking tool for use with the Jaquish Biomedical X3® exercise device.

The resistance band app that builds your workout, tracks every rep, and adjusts as you get stronger. Train at home, in rehab, or with an X3 Bar or Harambe System. No generic gym plans adapted for bands as an afterthought. Every exercise, plan, and progression in Rubber Bands is designed for resistance bands from the ground up. SMART PROGRESSION, BUILT FOR BANDS • Personalized plans from your goals, level, and the bands you own • Automatic progression that increases resistance as you improve, and eases you back in after a break instead of pretending you never left • Supports band stacking, partial reps, AMRAP sets, and band-assisted moves like pull-ups and dips WORKS WITH THE BANDS YOU ALREADY HAVE • Loop bands, tube bands, and bar systems: X3 Bar, Harambe System, TheraBand, Undersun, Clench, and more • Built-in band manager tracks your set, so workouts always match your actual equipment • Multiple gym profiles for home, travel, and office setups TRACK EVERYTHING • Video-guided exercises with proper band form • Workout history, streaks, and progress insights • Personal records for every exercise • Apple Health, Strava, and Fitbit sync • Rest timer and workout reminders SAFE ENOUGH FOR REHAB, SERIOUS ENOUGH FOR STRENGTH Bands are what physical therapists reach for first: joint-friendly, scalable, and effective. Rubber Bands pairs that safety with real programming, so the same app carries you from recovery to muscle building. Start your first workout in under two minutes. Download Rubber Bands and make every band you own count. Subscriptions are monthly or yearly. Payment is charged to your Apple Account at confirmation of purchase, and the subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings at any time; cancellation takes effect at the end of the current billing period. Privacy policy: https://rubberbands.app/privacy-policy Terms of use: https://rubberbands.app/terms-and-conditions