Comparison

OpenBook vs Workout Planner

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

Workout Planner

Features
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A real personal-trainer experience in your pocket. Most apps just log what you did. dynaimic plans what you should do next, around your goals, your recovery and how your last session actually felt. TWO WAYS TO TRAIN โ€ข Your coach builds today's session (Pro). Tap once for a complete workout (warm-up, working sets, optional cardio and cool-down) planned around your goals, equipment, experience, split and which muscles have recovered. โ€ข Pick a plan and follow it. Choose from 55+ plans with picks for you, build your own routine, or have your coach build a program that changes block by block. "Up now" always shows the day you're on, ready in one tap. Training off a plan someone else wrote? With Pro, paste it in and it becomes a routine: days, sets, reps and rest. STACK: TRACK YOUR SUPPLEMENTS Your supplements, one tap per dose. Creatine, protein, vitamins, electrolytes, grouped by when you take them, with a streak and a 12-week consistency grid for each one. Search the library or add anything you track yourself: name it, set the dose and the schedule. Everything you log stays yours. It never turns up in a coach message or a leaderboard. dynaimic records what you enter; it doesn't dose or advise. WHAT MAKES DYNAIMIC DIFFERENT โ€ข It listens after every session. Rate each workout (too easy, just right or crushed me). With Pro, your coach proposes the next step for load, volume and exercise choice. You decide. โ€ข Pick your coach. 29 coach personalities, each planning and talking to you in their own voice. โ€ข Real progression. Your lifts go up once you have earned them. When a lift stalls, your coach spots it and suggests a change. โ€ข Honest numbers. Band exercises record the band you used instead of a made-up weight, and every weight shows in kg or lb. โ€ข Stay hooked. Earn XP, climb the seasonal ranks, take on daily challenges and chase achievements. FEATURES โ€” Coach-planned sessions built around your goals, equipment, recovery and feedback โ€” 55+ plans, coach-built programs or your own routine builder โ€” Import a written program and turn it into a routine (Pro) โ€” New: Apple Watch app, Lock Screen logging, widgets, Siri shortcuts, plate calculator โ€” Stack: log supplements, protein and vitamins with streaks โ€” Exercise swaps ranked by useful difference, for your gear or a full gym โ€” 1,000+ exercises with how-to guides โ€” Personal records, session summaries, analytics, streaks and challenges โ€” Apple Health sync PRO Coach-planned training is Pro: weights, reps and rest set for every set, progression that adjusts week to week, coach-built workouts and programs, program import, stalled-lift spotting, coach chat and reviews, Quick Log, and all reminders, supplements included. FREE Full workout logging, the plan library and custom routines, exercise swaps, history and analytics, Stack, streaks and challenges, all 29 coaches, Apple Watch, widgets and Health sync. No trial to cancel. SUBSCRIPTION โ€ข dynaimic Pro โ€” 1 Month auto-renewing subscription โ€ข dynaimic Pro โ€” 1 Year auto-renewing subscription Payment is charged to your Apple Account at confirmation of purchase. It renews automatically at the same price unless auto-renew is turned off at least 24 hours before the current period ends. Manage it in your Apple Account Settings. PRIVACY & TERMS Your workout data is yours. We don't sell it. Privacy Policy: https://dynaimicpt.com/legal/privacy Terms of Use (EULA): https://dynaimicpt.com/legal/terms

Screenshots

OpenBook4 screens
Workout Planner4 screens

Verdict

The call

The clearest difference is ads: Workout Planner at none against OpenBook's shown. OpenBook's advantage is iOS requirement (15.5 vs 17.0). On price, update cadence, 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 Workout Planner sells 2 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, Workout Planner fortnightly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

Scorecard2 real differences ยท 4 level
OpenBook versus Workout Planner: the parameters behind the verdict, then further details
ParameterOpenBookWorkout Planner
PriceFreeFree
Update frequencyEvery 2 weeks โ€” betterFortnightly
AdsYesNo โ€” better
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.5 โ€” better17.0
Further details โ€” not scored
Size55 MB81 MB
Age rating4+12+
DeveloperOpenArcX Pty LtdBurak Ozaslan

In-app purchases

2 purchases

OpenBook

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

Workout Planner

Subscriptions2
  • dynaimic Pro$6.991 Month
  • dynaimic Pro โ€” Annual$39.991 Year

Questions

Is OpenBook free?
OpenBook is free to download, with in-app purchases available.
Is Workout Planner free?
Workout Planner is free to download, with in-app purchases available.
Do OpenBook or Workout Planner have ads?
OpenBook shows ads; Workout Planner does not.
Which is updated more often, OpenBook or Workout Planner?
OpenBook ships an update every 2 weeks, and Workout Planner fortnightly. Most recently, OpenBook was updated on October 14, 2026 and Workout Planner on October 24, 2026.

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