# Recovery Timer vs OpenBook

The clearest difference is price: OpenBook at Free against Recovery Timer's $0.99. OpenBook also leads on update cadence (every 2 weeks vs every 48 months). Recovery Timer's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

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

Recovery Timer ships an update every 48 months, OpenBook every 2 weeks. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Recovery Timer | OpenBook |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/recovery-timer/id1528108364/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 48 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 2 MB | 55 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [vGenerator LLC](https://appshunter.io/developer/1490279609) | [OpenArcX Pty Ltd](https://appshunter.io/developer/1870700465) |

## What reviewers say

### Recovery Timer

[App page](https://appshunter.io/ios/app/recovery-timer/id1528108364)

Optimize your workout recovery using your heart rate. This app calculates personalized rest periods for strength training, HIIT, and running, helping you maximize gains and improve speed. It synchronizes data with the Health app for comprehensive activity tracking.

**Highlights:** Heart rate-based rest period calculation, Customizable workout types, Configurable recovery heart rate, Heart-rate and time-based transitions, Health app synchronization, Maximizes strength and speed gains

**Features:** Apple Watch app

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Recovery Timer free?

Recovery Timer costs $0.99, with no in-app purchases.

### Is OpenBook free?

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

### Do Recovery Timer or OpenBook have ads?

OpenBook shows ads; Recovery Timer does not.

### Which is updated more often, Recovery Timer or OpenBook?

Recovery Timer ships an update every 48 months, and OpenBook every 2 weeks. Most recently, Recovery Timer was updated on October 7, 2026 and OpenBook on September 29, 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.*