# Serialist Tracker vs TumuBook

The clearest difference is in-app purchases: TumuBook at none against Serialist Tracker's 2. TumuBook also leads on iOS requirement (18.0 vs 26.0). Serialist Tracker's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Serialist Tracker sells 2 one-off in-app purchases. TumuBook asks for nothing beyond the download.

Serialist Tracker ships an update every 2 days, TumuBook every 3 weeks. Both last shipped on October 5, 2026.

## The numbers

| Metric | Serialist Tracker | TumuBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 25 MB | 5 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Ping-Chang Chen](https://appshunter.io/developer/1854443345) | [Tomoko Okada](https://appshunter.io/developer/1851438263) |

## What reviewers say

### 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 |


### TumuBook

[App page](https://appshunter.io/ios/app/tumubook/id6756200064)

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

**In-app purchases:** none


## Frequently asked questions

### Is Serialist Tracker free?

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

### Is TumuBook free?

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

### Do Serialist Tracker or TumuBook have ads?

Neither Serialist Tracker nor TumuBook shows ads.

### Which is updated more often, Serialist Tracker or TumuBook?

Serialist Tracker ships an update every 2 days, and TumuBook every 3 weeks. Most recently, Serialist Tracker was updated on October 5, 2026 and TumuBook 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.*