# BookJoy vs sleep² sleeptracker & analysis

The clearest difference is in-app purchases: BookJoy at none against sleep² sleeptracker & analysis's 4. sleep² sleeptracker & analysis's advantage is update cadence (every 2 weeks vs every 45 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. sleep² sleeptracker & analysis sells 4 in-app purchases, starting at $9.99 per month. BookJoy asks for nothing beyond the download.

BookJoy ships an update every 45 months, sleep² sleeptracker & analysis every 2 weeks. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | BookJoy | sleep² sleeptracker & analysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (37 ratings)](https://appshunter.io/ios/app/sleep-sleeptracker-and-analysis/id1629426238/reviews)** |
| Number of ratings | — | **37** |
| Positive reviews | — | 61.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 45 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 31 MB | 110 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quantana Pty Ltd](https://appshunter.io/developer/1474449406) | [Nukkuaa](https://appshunter.io/developer/1629426240) |

## What reviewers say

### BookJoy

[App page](https://appshunter.io/ios/app/bookjoy/id1474449407)

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

**In-app purchases:** none


### sleep² sleeptracker & analysis

[App page](https://appshunter.io/ios/app/sleep-sleeptracker-and-analysis/id1629426238)

This app acts as a personal guide to better sleep, combining innovative sleep training with precise sleep tracking and analysis. It offers an EU-approved medical device program for acute sleep disorders like insomnia, providing personalized recommendations and sleep training based on your data.

**Highlights:** Sleep tracking and analysis, Sleep training programs, Personalized recommendations, Interactive chatbot, Data import (Polar sensor, Apple Health), Manual sleep diary entry

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| sleep² PRO | $9.99 | per month |
| sleep² PRO | $79.99 | per year |
| sleep² intensive program | $39.99 | one-time |
| sleep² intensive program | $99.99 | one-time |


## Frequently asked questions

### Is BookJoy free?

BookJoy is free to download, with no in-app purchases.

### Is sleep² sleeptracker & analysis free?

sleep² sleeptracker & analysis is free to download, with in-app purchases available.

### Do BookJoy or sleep² sleeptracker & analysis have ads?

Neither BookJoy nor sleep² sleeptracker & analysis shows ads.

### Which is updated more often, BookJoy or sleep² sleeptracker & analysis?

BookJoy ships an update every 45 months, and sleep² sleeptracker & analysis every 2 weeks. Most recently, BookJoy was updated on October 6, 2026 and sleep² sleeptracker & analysis on October 17, 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.*