CALXTHENICS vs PBros
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CALXTHENICS
Access calisthenics programs from elite athletes and trainers. Improve body control, strength, and metabolism with bodyweight workouts. Achieve functional fitness and holistic health benefits.
- Programs from top calisthenics athletes
- Bodyweight workout routines
- Strength and power development
- Metabolism and mobility improvement
- Nutritional guidance
- Progress tracking
- Offline sync
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Featuring programs from the world's top Calisthenics athletes and trainers. • Adam Frater presents Project Shred (30 days), Cali Bulk (12 weeks), The Frater Diet, and Handstand Hero. • Max True, the muscle up Guinness record holder, presents True Endurance. Build muscular endurance for endless reps, strength and power. Are you ready to take on a new challenge? Are you ready to explore a more functional form of fitness through calisthenics and bodyweight workouts? Here's what you can expect from programs on the CALXTHENICS app. - Improve your body control and stability - Increase strength and power - Boost your metabolism - Open your body up with mobility - Learn to eat for your goals + Much more! Train to be a shredded and functional athlete! Say goodbye to ineffective workouts. Say goodbye to typical gym culture that tells you to lift heavy and pound supplements. It's time to start being proud of your body. It's time for pure confidence and peak performance. It's time to smash your plateau and set a new bar of personal success! By training with CALXTHENICS you will not only be thrilled with how you look in the mirror but this type of fitness will give you some incredible added benefits such as... - Rebalancing your hormones - Less stress/ better stress management - Enhanced sex drive/libido - Increased confidence - Deeper sense of fulfillment (through the release of dopamine) - Better cognitive function (you'll actually become smarter) - Better sleep - Better digestion - And overall more vitality and holistic health ++ New programs added monthly https://passion.io/terms-of-service https://passion.io/privacy-policy INFORMATION ABOUT THE APP AND PURCHASE OPTIONS The download of CALXTHENICS is free of charge. There is no free trial. Should you use CALXTHENICS app, we offer one of the following options: Payment will be charged to your credit card through your iTunes account after the trial period and when a subscription renews. A subscription renews automatically unless canceled at least 24 hours prior to the end of the subscription period. There is no increase in price when renewing. One Time Payments will only be charged one time initially. Subscriptions can be managed and auto-renewal turned off in Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term. Readout full Terms of Service and our Privacy Policy: https://passion.io/terms-of/service https://passion.io/privacy-policy INFORMATION ABOUT THE APP AND PURCHASE OPTIONS By signing up, you will get access to subscription(s) that include features such as progress tracking, and offline sync. The download of CALXTHENICS is free of charge. Should you use CALXTHENICS app to access in-app content via available one-time purchase(s), a payment will be charged to your credit card once. Read our full Terms of Service and our Privacy Policy: https://passion.io/terms-of-service https://passion.io/privacy-policy
PBros
This app provides timers for fasting, cold plunges, saunas, and breathing exercises. It offers customizable routines, progress tracking, and optional Apple Health integration for recovery scores. Enjoy a comprehensive wellness tool with a one-time purchase.
- Live fasting timer with presets
- Cold plunge and sauna timers
- Paced breathing exercises
- Contrast therapy routines
- Optional Apple Health integration
- Home Screen widgets and Live Activities
- Apple Watch app
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Fast. Plunge. Sauna. Breathe. One app, one price: no subscription, no ads, no account. Pick your stack, read the safety screen, and your first timer is running in under a minute. PBros is a set of timers for people who run a daily protocol. FAST • Live fasting timer with your exact end time • Presets: 16:8, 18:6, 20:4, OMAD, 24h, plus custom • Short phase notes for where you are in your fast (educational, not lab readings) • Forgiving streaks: one free rest day a week ("Rest day used, streak safe") • History saved on your iPhone COLD PLUNGE AND SAUNA • Plunge: 1–15 minute countdown in 30-second steps, with up to 5 rounds • Sauna: dry or infrared, 5–30 minutes, up to 5 rounds • Times logged to the second, plus a quick log for water or room temperature (°F/°C) and a note • Big, glanceable dry-side timers, also on Apple Watch CONTRAST • Auto sauna → plunge → rest rounds with loud cues at every switch • One-tap plans and built-in safety caps BREATH • Power Rounds: paced power breaths with a recovery hold. Sit or lie down on dry land, never in or near water. • Box, Long exhale and Sigh, with audio cues • Bedtime: slow, steady box breathing to wind down, with a dimmed screen and soft tones RECOVERY (optional Apple Health) • An on-device Recovery Score from HRV, resting heart rate and sleep, with a daily Push / Contrast / Rest suggestion • No Health access? A 10-second check-in works too • Log workouts and save sessions to Apple Health if you choose STACK • Morning, afternoon and evening reminders for the stack you choose (names only, no dosing advice) EVERYWHERE YOU LOOK • Live Activities and Dynamic Island for running timers • Home Screen widget with your live fasting time • Apple Watch app for Fast, Plunge, Sauna and Contrast YOUR DATA STAYS YOURS No account, no ads, no tracking. Your data stays on your device. One-time purchase. Every feature is included. No in-app purchases and no subscription. Important: Keep your iPhone and iPad dry. Don't take them into water, ice baths or saunas. Use Apple Watch if you want a timer close by. Do breath-hold rounds only sitting or lying down, never in or near water or while driving. PBros is not medical advice. Talk with a clinician before fasting or heat/cold practices if you're pregnant, breastfeeding, under medical care, or have been told not to fast. Intended for adults 18+.
Screenshots
Verdict
The clearest difference is review sentiment: PBros at 100% against CALXTHENICS's 38%. PBros also leads on rating (5.0 vs 3.8) and in-app purchases (none vs 14). CALXTHENICS's advantage is price (Free vs $4.99) and ratings volume (96 vs 6). On device support 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
CALXTHENICS is free to download; PBros costs $4.99 up front. CALXTHENICS sells 11 in-app purchases, starting at $14.99 per month. PBros asks for nothing beyond the download.
PBros holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: CALXTHENICS has 96 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 38% of CALXTHENICS's written reviews are positive against 100% of PBros's.
CALXTHENICS ships an update every 6 weeks, PBros every 2 days. Both last shipped on October 24, 2026.
| Parameter | CALXTHENICS | PBros |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 3.8 (96 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 38.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 96 — better | 6 |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 90 MB | 12 MB |
| Age rating | 17+ | 12+ |
| Developer | Adam Frater | Discipline Dynamics LLC |
Customer experience
CALXTHENICS
PBros
Bugs and requests
CALXTHENICS
Reported bugs
19 issues- Login does not work
- Password reset does not work
- App crashes frequently
- Videos often don't work or glitch
- Workout programs disappear
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- Paid content becomes inaccessible
- App logs users out randomly
- Customer support links open incorrect apps
- Manage subscription button leads back to the front page
- Back button sometimes closes the app
- Instructional videos are too bandwidth heavy
- App glitches and doesn't load programs
- Workout progress is lost when app is minimized
- Payment processing fails
- App crashes when trying to access content
- Downloaded workouts require internet to open
- Content access denied after cancelling subscription
- App doesn't recognize users after reinstallation
- Subscription issues after purchase (e.g., lifetime subscription)
Requested features
16 requests- Update the app to be more modern and engaging
- Improve app stability and fix bugs
- Ensure login and password reset functions work correctly
- Provide better customer support with faster response times
- Make workout videos stream more efficiently
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- Allow access to paid content consistently
- Integrate with Apple Health
- Allow workouts to resume after being minimized
- Provide a clear and easy way to cancel subscriptions within the app
- Offer more consistent exercises for mastery in beginner sections
- Add Apple Watch support
- Improve the user interface and user experience
- Fix issues with videos glitching or not playing
- Ensure downloaded workouts are accessible offline
- Allow users to repeat workouts easily
- Offer a one-time payment option or clearer pricing structure
PBros
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CALXTHENICS
- CALXTHENICS Full Access$14.991 Month
- CALXTHENICS Year Access$167.991 Year
- One Time Subscription$19.99
- Frater Fit Diet$20.00
- Project Shred Part II$25.00
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- One Time Subscription$47.99
- One Time Subscription$59.99
- Project Shred$64.99
- One Time Subscription4 variants$64.99
- One Time Subscription$72.00
- Slope Strong$97.00
PBros
No in-app purchases









