# Once A Week vs Habit Tracker

The clearest difference is in-app purchases: Once A Week at none against Habit Tracker's 2. Once A Week also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Habit Tracker sells 2 in-app purchases, starting at $4.99 per month. Once A Week asks for nothing beyond the download.

## The numbers

| Metric | Once A Week | Habit Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 4 days |
| Size | 6 MB | 19 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Mattis](https://appshunter.io/developer/1882107507) | [Aleksei Pozdniakov](https://appshunter.io/developer/1742916162) |

## What reviewers say

### Once A Week

[App page](https://appshunter.io/ios/app/once-a-week-win-your-week/id6761392613)

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

**In-app purchases:** none


### Habit Tracker

[App page](https://appshunter.io/ios/app/habit-tracker-stacky/id6813148053)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stacky Pro Monthly | $4.99 | per month |
| Stacky Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Once A Week free?

Once A Week is free to download, with no in-app purchases.

### Is Habit Tracker free?

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

### Do Once A Week or Habit Tracker have ads?

Habit Tracker shows ads; Once A Week 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.*