# AtmoChem vs Atrium Campus Connect

The clearest difference is update cadence: Atrium Campus Connect at every 3 weeks against AtmoChem's every 7 months. AtmoChem's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, 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.

AtmoChem ships an update every 7 months, Atrium Campus Connect every 3 weeks. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AtmoChem | Atrium Campus Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.2 (197 ratings)](https://appshunter.io/ios/app/atrium-campus-connect/id1596975756/reviews)** |
| Number of ratings | — | **197** |
| Positive reviews | — | 6.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 13 MB | 9 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TH KOUTSOURAS KAI SIA E.E.](https://appshunter.io/developer/450810311) | [ATRIUM CAMPUS LLC](https://appshunter.io/developer/1596975758) |

## What reviewers say

### AtmoChem

[App page](https://appshunter.io/ios/app/atmochem/id1581386067)

**Features:** macOS Compatibility

**In-app purchases:** none


### Atrium Campus Connect

[App page](https://appshunter.io/ios/app/atrium-campus-connect/id1596975756)

Manage your campus account with ease. Add your ID to your digital wallet, purchase meals, view transactions, and find participating locations. Securely access your campus services and report lost credentials.

**Highlights:** Scannable campus ID in Apple Wallet, Purchase meals and manage plans, View account balances and transactions, Find and order from participating locations, Add money via Apple Pay, Contactless and secure access

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is AtmoChem free?

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

### Is Atrium Campus Connect free?

Atrium Campus Connect is free to download, with no in-app purchases.

### Do AtmoChem or Atrium Campus Connect have ads?

Neither AtmoChem nor Atrium Campus Connect shows ads.

### Which is updated more often, AtmoChem or Atrium Campus Connect?

AtmoChem ships an update every 7 months, and Atrium Campus Connect every 3 weeks. Most recently, AtmoChem was updated on October 13, 2026 and Atrium Campus Connect on October 24, 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.*