# One Habit vs Atomic Habits Timer

The clearest difference is iOS requirement: One Habit at 13.3 against Atomic Habits Timer's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. One Habit sells 3 in-app purchases, starting at $2.99 per month and Atomic Habits Timer sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

One Habit ships an update every 6 days, Atomic Habits Timer weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | One Habit | Atomic Habits Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Size | 56 MB | 5 MB |
| Requires iOS | **13.3** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [伟基 陶](https://appshunter.io/developer/1872855313) | [Pentarab](https://appshunter.io/developer/1453947051) |

## What reviewers say

### One Habit

[App page](https://appshunter.io/ios/app/one-habit-routine-tracker/id6758465304)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Yearly Premium | $14.99 | per year |
| Lifetime Premium | $29.99 | one-time |


### Atomic Habits Timer

[App page](https://appshunter.io/ios/app/atomic-habits-timer-1-habit/id6781336189)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1% Habit Monthly | $2.99 | per month |
| 1% Habit Yearly | $14.99 | per year |
| 1% Habit Pro | $19.99 | one-time |


## Frequently asked questions

### Is One Habit free?

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

### Is Atomic Habits Timer free?

Atomic Habits Timer is free to download, with in-app purchases available.

### Do One Habit or Atomic Habits Timer have ads?

Neither One Habit nor Atomic Habits Timer shows ads.

### Which is updated more often, One Habit or Atomic Habits Timer?

One Habit ships an update every 6 days, and Atomic Habits Timer weekly. Most recently, One Habit was updated on October 31, 2026 and Atomic Habits Timer on November 5, 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.*