# FocusU vs ONE

The clearest difference is in-app purchases: ONE at none against FocusU's 2. ONE also leads on ads (none vs shown). FocusU's advantage is update cadence (every 4 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. FocusU sells 2 in-app purchases, starting at $1.99 per month. ONE asks for nothing beyond the download.

FocusU ships an update every 4 days, ONE every 2 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | FocusU | ONE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 2 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kota Sakurai](https://appshunter.io/developer/1523595704) | [骋飞 武](https://appshunter.io/developer/6775319022) |

## What reviewers say

### FocusU

[App page](https://appshunter.io/ios/app/focusu-one-task-at-a-time/id6755238610)

This app helps you overcome procrastination by displaying only one task at a time, making it easier to start and complete your to-dos. It offers AI-powered task breakdown, a focus timer, and a daily reminder to keep you on track.

**Highlights:** One task at a time display, AI-powered task breakdown, Focus Timer (Pomodoro-style), Task completion tracking, Daily reminders, Dark Mode support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FocusU Pro (Monthly) | $1.99 | per month |
| FocusU Pro (Yearly) | $14.99 | per year |


### ONE

[App page](https://appshunter.io/ios/app/one-focus-deep-life-timer/id6777599934)

**In-app purchases:** none


## Frequently asked questions

### Is FocusU free?

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

### Is ONE free?

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

### Do FocusU or ONE have ads?

FocusU shows ads; ONE does not.

### Which is updated more often, FocusU or ONE?

FocusU ships an update every 4 days, and ONE every 2 weeks. Most recently, FocusU was updated on October 28, 2026 and ONE on October 28, 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.*