# Book Leaf vs Serialist Tracker

The clearest difference is update cadence: Serialist Tracker at every 2 days against Book Leaf's every 2 weeks. Book Leaf's advantage is iOS requirement (15.5 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Book Leaf sells 6 in-app purchases, starting at $4.99 per month and Serialist Tracker sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Book Leaf ships an update every 2 weeks, Serialist Tracker every 2 days. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Book Leaf | Serialist Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 89 MB | 25 MB |
| Requires iOS | **15.5** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [AKIFUMI YOSHIMURA](https://appshunter.io/developer/1819749795) | [Ping-Chang Chen](https://appshunter.io/developer/1854443345) |

## What reviewers say

### Book Leaf

[App page](https://appshunter.io/ios/app/book-leaf-ocr-book-notes/id6747080786)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Book Leaf Pro (Monthly) | $4.99 | per month |
| Book Leaf Pro (Annual) | $49.99 | per year |
| OCR Credit 50 | $2.99 | one-time |
| OCR Credit 150 | $5.99 | one-time |
| OCR Credit 500 | $17.90 | one-time |
| Book Leaf Pro (Lifetime) | $54.99 | one-time |


### Serialist Tracker

[App page](https://appshunter.io/ios/app/serialist-tracker/id6755640167)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip the Developer | $1.99 | one-time |
| Ad-Free | $1.99 | one-time |


## Frequently asked questions

### Is Book Leaf free?

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

### Is Serialist Tracker free?

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

### Do Book Leaf or Serialist Tracker have ads?

Neither Book Leaf nor Serialist Tracker shows ads.

### Which is updated more often, Book Leaf or Serialist Tracker?

Book Leaf ships an update every 2 weeks, and Serialist Tracker every 2 days. Most recently, Book Leaf was updated on September 30, 2026 and Serialist Tracker on October 5, 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.*