X3 Force vs Rubber Bands
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
X3 Force
This application works with a smart resistance bar to track your exercise sessions in real time. It displays force data, quantifies workout quality, and helps you monitor progress to maximize results. Focus on improving your performance metrics for enhanced growth.
- Real-time force tracking
- Quantify workout quality
- Record workout duration
- Monitor rep consistency
- Calculate time under tension
- View peak forces
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We are pleased to announce the new Jaquish Biomedical X3® Force! X3 Force is an electronic, force tracking X3 bar that works with a smartphone application to display and record real time data about each exercise session. With X3 Force, you can get the benefits of a smart home gym, combined with the superior X3 variable resistance workout methodology. With every workout, you'll compete with your previous Total Force, a performance metric that uses real-time force data to calculate time under variable tension and overall workout quality. This way you will always know you're stimulating more growth. X3 Force combines force data with time and rep count information to calculate a Total Force exercise rating, that helps to summarize the difficulty and quality of each exercise session, so that you can more conveniently track your improvement. Focusing on improving your Total Force for each exercise is a great way to confirm that you are maximizing your results and adhering to X3 best practices. Maximize your results with data-driven workouts to help you push harder and perform better each time. With X3 Force you can: * View Peak Forces For Every Exercise * Quantify Overall Workout Quality * Record Workout Duration * Monitor Rep Consistency * Calculate Time Under Variable Tension Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Rubber Bands
This app provides personalized resistance band workouts for strength, mobility, and muscle building. It features a comprehensive exercise library with video guidance, progress tracking, and support for various band types and popular systems.
- Personalized workout plans
- Video-guided exercises
- Resistance band manager
- Progress tracking
- Supports various band types
- Integration with fitness trackers
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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
Screenshots
Verdict
The clearest difference is rating: Rubber Bands at 4.7 against X3 Force's 4.1. Rubber Bands also leads on ratings volume (127 vs 20). X3 Force's advantage is monetization model (free with in-app purchases vs subscription) and device support (4 vs 2). On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. X3 Force sells 2 in-app purchases, starting at $14.99 per month and Rubber Bands sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Rubber Bands holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Rubber Bands has 127 ratings behind it against 20, so its average is the more settled of the two. Written reviews complicate that: 70% of X3 Force's written reviews are positive against 67% of Rubber Bands's, so the app with the better star average is not the one people write more warmly about.
X3 Force ships an update fortnightly, Rubber Bands every 9 days. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.
| Parameter | X3 Force | Rubber Bands |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (20 ratings) | 4.7 (127 ratings) — better |
| Positive reviews | 70.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 20 | 127 — better |
| Update frequency | Fortnightly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 26 MB | 106 MB |
| Age rating | 4+ | 4+ |
| Developer | Jaquish Biomedical Corporation | Rubber Bands LLC |
Customer experience
X3 Force
Rubber Bands
In-app purchases
X3 Force
- Monthly$14.991 Month
- Yearly$164.991 Year
Rubber Bands
- Unlock all features7 Days trial$4.991 Month
- Unlock all features7 Days trial$24.991 Year







