Comparison

Strength Coach vs OpenBook

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

Head to head
About

Strength Coach

This app generates Wendler 5/3/1 training plans and tracks powerlifting personal records. It displays warm-up sets and percentage-based calculations for your lifts.

Highlights
  • Wendler 5/3/1 plan generation
  • Powerlifting personal record tracking
  • Warm-up set display
  • Percentage-based calculations
  • Lift tracking
Features
Read full description

An app to generate Wendler 5/3/1 for the user while also tracking powerlifting personal records. Displays warm up sets for Wendler 5/3/1 and percentages for the users personal records.

About

OpenBook

Read full description

OpenBook is a clean, pen-and-paper style workout log. Built to be fast, simple, and flexible. No sign-up, no credit card required — 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 — strength, calisthenics, bodybuilding, powerlifting, yoga, or functional fitness — OpenBook fits around it. For example: • Bench Press — weight × reps • Zercher Hold — weight × time • Sled Push — weight × distance • Planche Lean — distance × time • Dead Hang — time only • Stretching — time only • Arrowhead Lunge — 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. ——— 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

Screenshots

Strength Coach4 screens
OpenBook4 screens

Verdict

The call

The clearest difference is price: OpenBook at Free against Strength Coach's $0.99. OpenBook also leads on update cadence (every 2 weeks vs every 7 months). Strength Coach's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

OpenBook is free to download; Strength Coach costs $0.99 up front. OpenBook sells 2 in-app purchases, starting at $3.99 per month. Strength Coach asks for nothing beyond the download.

UpkeepUpdate frequency

Strength Coach ships an update every 7 months, OpenBook every 2 weeks. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

Scorecard4 real differences · 6 level
Strength Coach versus OpenBook: the parameters behind the verdict, then further details
ParameterStrength CoachOpenBook
Price$0.99Free — better
Rating4.3 (4 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 7 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.5
Further details — not scored
Size2 MB55 MB
Age rating4+4+
DeveloperTiger Bomb LLCOpenArcX Pty Ltd

In-app purchases

None

Strength Coach

No in-app purchases

2 purchases

OpenBook

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

Questions

Is Strength Coach free?
Strength Coach costs $0.99, with no in-app purchases.
Is OpenBook free?
OpenBook is free to download, with in-app purchases available.
Do Strength Coach or OpenBook have ads?
OpenBook shows ads; Strength Coach does not.
Which is updated more often, Strength Coach or OpenBook?
Strength Coach ships an update every 7 months, and OpenBook every 2 weeks. Most recently, Strength Coach was updated on October 3, 2026 and OpenBook on September 29, 2026.

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