# SmartPet vs Book Tracker

The clearest difference is ads: Book Tracker at none against SmartPet's shown. Book Tracker also leads on update cadence (every 4 days vs every 3 weeks). SmartPet's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. SmartPet sells 2 in-app purchases, starting at $10.99 per month and Book Tracker sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SmartPet ships an update every 3 weeks, Book Tracker every 4 days. Both last shipped on October 18, 2026.

## The numbers

| Metric | SmartPet | Book Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 81 MB | 93 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Odin Solutions Lda](https://appshunter.io/developer/1878421565) | [Dragos-Bogdan Sima](https://appshunter.io/developer/1872821516) |

## What reviewers say

### SmartPet

[App page](https://appshunter.io/ios/app/smartpet-bite-sized-books/id6766229269)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription Package | $10.99 | per month |
| Yearly Subscription Package | $89.99 | per year |


### Book Tracker

[App page](https://appshunter.io/ios/app/book-tracker-readingkit/id6771128096)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Yearly subscription | $11.99 | per year |
| Lifetime offer | $29.99 | one-time |


## Frequently asked questions

### Is SmartPet free?

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

### Is Book Tracker free?

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

### Do SmartPet or Book Tracker have ads?

SmartPet shows ads; Book Tracker does not.

### Which is updated more often, SmartPet or Book Tracker?

SmartPet ships an update every 3 weeks, and Book Tracker every 4 days. Most recently, SmartPet was updated on October 18, 2026 and Book Tracker on October 18, 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.*