# ToDoBuff ~ToDo×Scheduling vs TASS kun

The clearest difference is in-app purchases: TASS kun at none against ToDoBuff ~ToDo×Scheduling's 1. TASS kun also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. ToDoBuff ~ToDo×Scheduling sells 1 one-off in-app purchase. TASS kun asks for nothing beyond the download.

ToDoBuff ~ToDo×Scheduling ships an update every 3 weeks, TASS kun every 11 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ToDoBuff ~ToDo×Scheduling | TASS kun |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Size | 14 MB | 5 MB |
| Requires iOS | 16.6 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Taito Iikura](https://appshunter.io/developer/1506013840) | [koyo kuze](https://appshunter.io/developer/1862339457) |

## What reviewers say

### ToDoBuff ~ToDo×Scheduling

[App page](https://appshunter.io/ios/app/todobuff-todoscheduling/id6740168317)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Removal | $14.99 | one-time |


### TASS kun

[App page](https://appshunter.io/ios/app/tass-kun/id6756688086)

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

**In-app purchases:** none


## Frequently asked questions

### Is ToDoBuff ~ToDo×Scheduling free?

ToDoBuff ~ToDo×Scheduling is free to download, with in-app purchases available.

### Is TASS kun free?

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

### Do ToDoBuff ~ToDo×Scheduling or TASS kun have ads?

Both ToDoBuff ~ToDo×Scheduling and TASS kun show ads.

### Which is updated more often, ToDoBuff ~ToDo×Scheduling or TASS kun?

ToDoBuff ~ToDo×Scheduling ships an update every 3 weeks, and TASS kun every 11 days. Most recently, ToDoBuff ~ToDo×Scheduling was updated on October 30, 2026 and TASS kun on October 25, 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.*