# Whenn vs The One Thing

The clearest difference is in-app purchases: Whenn at none against The One Thing's 2. The One Thing's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. The One Thing sells 2 in-app purchases, starting at $4.99 per month. Whenn asks for nothing beyond the download.

Whenn ships an update every 8 days, The One Thing every 2 weeks. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Whenn | The One Thing |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 21 MB | 12 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Whenn Limited](https://appshunter.io/developer/1660258847) | [Ryland](https://appshunter.io/developer/1585408789) |

## What reviewers say

### Whenn

[App page](https://appshunter.io/ios/app/whenn/id1660258574)

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

**In-app purchases:** none


### The One Thing

[App page](https://appshunter.io/ios/app/the-one-thing-todo-list/id6444501039)

This app helps you cut through overwhelm by focusing your attention on a single, clear task at a time. It offers a calm, lightweight interface to reduce stress and distraction, making it ideal for those who benefit from simplified choices.

**Highlights:** Focus on one current task, Simple active task list, Task completion rewards, Progress tracking, Personalizable interface, Widgets for quick access

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription 1 Month | $4.99 | per month |
| Premium Subscription 1 Year | $49.99 | per year |


## Frequently asked questions

### Is Whenn free?

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

### Is The One Thing free?

The One Thing is free to download, with in-app purchases available.

### Do Whenn or The One Thing have ads?

Neither Whenn nor The One Thing shows ads.

### Which is updated more often, Whenn or The One Thing?

Whenn ships an update every 8 days, and The One Thing every 2 weeks. Most recently, Whenn was updated on October 25, 2026 and The One Thing on October 7, 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.*