# OpenBook vs My Workout Diary

The clearest difference is ads: My Workout Diary at none against OpenBook's shown. My Workout Diary also leads on update cadence (daily vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. OpenBook sells 2 in-app purchases, starting at $3.99 per month and My Workout Diary sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

OpenBook ships an update every 2 weeks, My Workout Diary daily. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | OpenBook | My Workout Diary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | — | Freemium |
| Size | 55 MB | 43 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OpenArcX Pty Ltd](https://appshunter.io/developer/1870700465) | [HUGH PETER ANDERSON](https://appshunter.io/developer/1880012779) |

## What reviewers say

### OpenBook

[App page](https://appshunter.io/ios/app/openbook-workout-tracker/id6758069172)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenBook Full Access - Monthly | $3.99 | per month |
| OpenBook Full Access - Yearly | $29.99 | per year |


### My Workout Diary

[App page](https://appshunter.io/ios/app/my-workout-diary-gym-tracker/id6759643284)

Easily log your gym workouts, track progressive overload with clear visual indicators, and monitor body stats. Share your progress with friends and organize exercises for quick logging. Stay motivated and see your strength grow over time.

**Highlights:** Simple workout logging, Progressive overload tracking, Exercise library and custom exercises, Body stats tracking, Calendar view of training history, Workout sharing and social features

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is OpenBook free?

OpenBook is free to download, with in-app purchases available.

### Is My Workout Diary free?

My Workout Diary is free to download, with in-app purchases available.

### Do OpenBook or My Workout Diary have ads?

OpenBook shows ads; My Workout Diary does not.

### Which is updated more often, OpenBook or My Workout Diary?

OpenBook ships an update every 2 weeks, and My Workout Diary daily. Most recently, OpenBook was updated on October 14, 2026 and My Workout Diary on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*