# TaskTetra vs Days Until 100

The clearest difference is in-app purchases: Days Until 100 at none against TaskTetra's 1. TaskTetra's advantage is iOS requirement (16.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. TaskTetra sells 1 one-off in-app purchase. Days Until 100 asks for nothing beyond the download.

## The numbers

| Metric | TaskTetra | Days Until 100 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | — |
| Size | 15 MB | 6 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Koya Nambo](https://appshunter.io/developer/1633778504) | [Kairu Inoue](https://appshunter.io/developer/1808240838) |

## What reviewers say

### TaskTetra

[App page](https://appshunter.io/ios/app/tasktetra-todo-management-app/id6460933735)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Days Until 100

[App page](https://appshunter.io/ios/app/days-until-100/id6792262785)

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

**In-app purchases:** none


## Frequently asked questions

### Is TaskTetra free?

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

### Is Days Until 100 free?

Days Until 100 is free to download, with no in-app purchases.

### Do TaskTetra or Days Until 100 have ads?

Both TaskTetra and Days Until 100 show ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*