Comparison

OpenBook vs Squat Boss

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

OpenBook

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OpenBook is a clean, pen-and-paper style workout log. Built to be fast, simple, and flexible. No sign-up, no credit card required โ€” start right away with unlimited exercises and routines, full graph access, and CSV export for your own data. Log up to 28 training days. Subscribe anytime for unlimited logging. With OpenBook, you can: Log any exercise. Track any unit or combination of units. However you train โ€” strength, calisthenics, bodybuilding, powerlifting, yoga, or functional fitness โ€” OpenBook fits around it. For example: โ€ข Bench Press โ€” weight ร— reps โ€ข Zercher Hold โ€” weight ร— time โ€ข Sled Push โ€” weight ร— distance โ€ข Planche Lean โ€” distance ร— time โ€ข Dead Hang โ€” time only โ€ข Stretching โ€” time only โ€ข Arrowhead Lunge โ€” breaths Swipe between days Move between days with a simple swipe to review past sessions. See your training at a glance View your days across a calendar or heatmap. Plan or track anytime Start with a saved routine or log as you go. Time your rest. Add notes. Set custom rest timers and add notes for each session. View your progress with context Track your progress over time, including intensity through % max or %1RM. Compare and periodise Track two metrics on one timeline to support structured, periodised training. Edit or repeat sessions Quickly update past logs or duplicate sessions with a single tap. Download your data Export your data at any time. Back up your data to the cloud Keep your data safe and accessible. โ€”โ€”โ€” Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ OpenBook Terms of Service: https://openbook.fit/terms Privacy Policy: https://openbook.fit/privacy

About

Squat Boss

Features
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Squat Boss turns real squats into arcade boss fights. Place your phone where the camera can see you, step into the arena, and start moving. Every valid squat damages the boss. Keep your combo alive, protect your streak, climb the leaderboard, and challenge fighters around the world. No gym equipment. No boring workout screen. Just you, your legs, and the boss waiting. WHY SQUAT BOSS? โ€ข Real squats tracked by your camera Your reps count when you actually move. โ€ข Boss fight workouts Every session feels like a fight, not a checklist. โ€ข Live World Challenges Compete with other players in real-time squat battles and race to finish first. โ€ข Global leaderboard Climb the ranks, represent your country, and see how your effort stacks up. โ€ข Global chat Talk with other fighters, share wins, and stay connected to the arena. โ€ข Streaks and progression Earn XP, build your streak, unlock harder challenges, and keep showing up. โ€ข Short daily sessions Built for quick workouts when you only have a few minutes. HOW IT WORKS 1. Place your phone where your full body is visible. 2. Start a boss fight or live world challenge. 3. Do real squats. 4. Each valid squat damages the boss or updates your live score. 5. Win the fight, protect your streak, and come back stronger. Squat Boss is made for people who hate boring fitness apps. Show up. Squat. Survive. SUBSCRIPTION Squat Boss offers auto-renewing subscription plans with a free trial when available. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. SAFETY Squat Boss is for entertainment and general fitness. Stop immediately if you feel pain, dizziness, or discomfort. Consult a qualified professional before starting any exercise program if you have medical concerns. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/squat-boss-privacy/home

Screenshots

OpenBook4 screens
Squat Boss3 screens

Verdict

The call

The clearest difference is ads: Squat Boss at none against OpenBook's shown. OpenBook's advantage is update cadence (every 2 weeks vs every 3 months) and iOS requirement (15.5 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. OpenBook sells 2 in-app purchases, starting at $3.99 per month and Squat Boss sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OpenBook ships an update every 2 weeks, Squat Boss every 3 months. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

Scorecard3 real differences ยท 3 level
OpenBook versus Squat Boss: the parameters behind the verdict, then further details
ParameterOpenBookSquat Boss
PriceFreeFree
Update frequencyEvery 2 weeks โ€” betterEvery 3 months
AdsYesNo โ€” better
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 โ€” better17.0
Further details โ€” not scored
Size55 MB36 MB
Age rating4+12+
DeveloperOpenArcX Pty LtdABUBAKAR JAMILU

In-app purchases

2 purchases

OpenBook

Subscriptions2
  • OpenBook Full Access - Monthly$3.991 Month
  • OpenBook Full Access - Yearly$29.991 Year
3 purchases

Squat Boss

Subscriptions3
  • Monthly Premium3 Days trial$6.991 Month
  • Yearly Premium3 Days trial$19.991 Year
  • Yearly Premium$24.991 Year

Questions

Is OpenBook free?
OpenBook is free to download, with in-app purchases available.
Is Squat Boss free?
Squat Boss is free to download, with in-app purchases available.
Do OpenBook or Squat Boss have ads?
OpenBook shows ads; Squat Boss does not.
Which is updated more often, OpenBook or Squat Boss?
OpenBook ships an update every 2 weeks, and Squat Boss every 3 months. Most recently, OpenBook was updated on September 29, 2026 and Squat Boss on October 10, 2026.

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