# Habit Rainbow vs Days Until 100

The clearest difference is in-app purchases: Days Until 100 at none against Habit Rainbow's 3. Habit Rainbow's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Habit Rainbow sells 3 in-app purchases, starting at $2.99 per month. Days Until 100 asks for nothing beyond the download.

## The numbers

| Metric | Habit Rainbow | Days Until 100 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | — |
| Size | 94 MB | 6 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Toshiaki Nakamura](https://appshunter.io/developer/822485897) | [Kairu Inoue](https://appshunter.io/developer/1808240838) |

## What reviewers say

### Habit Rainbow

[App page](https://appshunter.io/ios/app/habit-rainbow/id6736444115)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 month | $2.99 | per month |
| Premium 6 months | $17.99 | per 6 months |
| Premium 1 year | $19.99 | per year |


### 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 Habit Rainbow free?

Habit Rainbow 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 Habit Rainbow or Days Until 100 have ads?

Days Until 100 shows ads; Habit Rainbow does not.

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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.*