# Caff vs Tsumoru

The clearest difference is in-app purchases: Tsumoru at none against Caff's 1. Caff's advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Caff sells 1 one-off in-app purchase. Tsumoru asks for nothing beyond the download.

## The numbers

| Metric | Caff | Tsumoru |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Size | 36 MB | 7 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Afternoon Software](https://appshunter.io/developer/1762837621) | [Yuta Tamaru](https://appshunter.io/developer/1785494217) |

## What reviewers say

### Caff

[App page](https://appshunter.io/ios/app/caff-fast-reading-with-rsvp/id6772760710)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caff Pro | $9.99 | one-time |


### Tsumoru

[App page](https://appshunter.io/ios/app/tsumoru-practice-timer/id6810985196)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Caff free?

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

### Is Tsumoru free?

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

### Do Caff or Tsumoru have ads?

Neither Caff nor Tsumoru shows ads.

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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.*