# Atomic vs Check It Again

The clearest difference is price: Atomic at Free against Check It Again's $2.99. Atomic also leads on ratings volume (34 vs 7). Check It Again's advantage is in-app purchases (none vs 1) and update cadence (every 2 days vs every 10 days). On rating, ads, device support and iOS requirement there is nothing between them.

Atomic is free to download; Check It Again costs $2.99 up front. Atomic sells 1 one-off in-app purchase. Check It Again asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Atomic against 5.0 for Check It Again. Both are backed by a comparable volume of ratings — 34 and 7 respectively. Written reviews are what separate them: 90% of Atomic's written reviews are positive against 100% of Check It Again's.

Atomic ships an update every 10 days, Check It Again every 2 days. Both last shipped on October 16, 2026.

## The numbers

| Metric | Atomic | Check It Again |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.9 (34 ratings)](https://appshunter.io/ios/app/atomic-habit-tracker/id6470944782/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/check-it-again/id6760605393/reviews)** |
| Number of ratings | **34** | 7 |
| Positive reviews | 89.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 2 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 66 MB | 1 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Kanbon GmbH](https://appshunter.io/developer/1649220122) | [EARL C DENNEY](https://appshunter.io/developer/1885275340) |

## What reviewers say

### Atomic

[App page](https://appshunter.io/ios/app/atomic-habit-tracker/id6470944782)

Effortlessly build and sustain habits with a focus on personal growth. This app offers a minimalist design, dark mode, and clear visualizations to support your journey. Enjoy tailored insights and complete control over your data with a strong commitment to privacy.

**Highlights:** Habit building and tracking, Goal setting, Dark mode support, Clear visualizations, Tailored insights, Privacy-focused design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atomic Pro | $12.99 | one-time |


### Check It Again

[App page](https://appshunter.io/ios/app/check-it-again/id6760605393)

This app provides a straightforward way to create and reuse checklists for recurring tasks. It focuses on simplicity, allowing users to check off items without complex features or data tracking. Your data is kept private and syncs across your Apple devices via iCloud.

**Highlights:** Create reusable checklists, Check off items, Private iCloud sync, No account required, Ad-free experience, No premium features

**In-app purchases:** none


## Frequently asked questions

### Is Atomic free?

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

### Is Check It Again free?

Check It Again costs $2.99, with no in-app purchases.

### Which has better reviews, Atomic or Check It Again?

Check It Again is rated higher. Atomic averages 4.9 out of 5 from 34 ratings, while Check It Again averages 5.0 from 7 ratings.

### Do Atomic or Check It Again have ads?

Neither Atomic nor Check It Again shows ads.

### Which is updated more often, Atomic or Check It Again?

Atomic ships an update every 10 days, and Check It Again every 2 days. Most recently, Atomic was updated on October 16, 2026 and Check It Again on October 16, 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.*