# O vs [Official] CH.ATOMY

The clearest difference is rating: [Official] CH.ATOMY at 4.0 against O's 3.7. [Official] CH.ATOMY also leads on iOS requirement (13.0 vs 16.6). O's advantage is update cadence (every 6 days vs every 3 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

[Official] CH.ATOMY holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 7 and 3 respectively.

O ships an update every 6 days, [Official] CH.ATOMY every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | O | [Official] CH.ATOMY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (7 ratings)](https://appshunter.io/ios/app/o-key-ai/id1668994065/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/official-chatomy/id6743142017/reviews)** |
| Number of ratings | **7** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 80 MB | 6 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [inqoob](https://appshunter.io/developer/1635571963) | [Atomy.co..Ltd](https://appshunter.io/developer/539406064) |

## What reviewers say

### O

[App page](https://appshunter.io/ios/app/o-key-ai/id1668994065)

Streamline business interactions and manage professional contacts efficiently. Schedule meetings, add notes to contacts, and share your QR business card for seamless networking. This app helps you stay organized and build stronger professional relationships.

**Highlights:** Contact Management, Schedule Presentations & Sales Meetings, Add Comments & Notes to Contacts, QR Business Card Creation & Sharing, User-friendly Interface

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

**In-app purchases:** none


### [Official] CH.ATOMY

[App page](https://appshunter.io/ios/app/official-chatomy/id6743142017)

This business application offers a comprehensive resource for individuals interested in the Atomy business. Access essential content for business growth, company and product information, success stories, news, and global business updates.

**Highlights:** Academy content for business growth, Company and product introductions, Member success stories, Live promotion ceremony streams, Atomy news and press releases, Global business insights

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

**In-app purchases:** none


## Frequently asked questions

### Is O free?

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

### Is [Official] CH.ATOMY free?

[Official] CH.ATOMY is free to download, with no in-app purchases.

### Which has better reviews, O or [Official] CH.ATOMY?

[Official] CH.ATOMY is rated higher. O averages 3.7 out of 5 from 7 ratings, while [Official] CH.ATOMY averages 4.0 from 3 ratings.

### Do O or [Official] CH.ATOMY have ads?

Neither O nor [Official] CH.ATOMY shows ads.

### Which is updated more often, O or [Official] CH.ATOMY?

O ships an update every 6 days, and [Official] CH.ATOMY every 3 weeks. Most recently, O was updated on October 24, 2026 and [Official] CH.ATOMY on October 25, 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.*