# Check In Class vs Klitron v2

The clearest difference is update cadence: Klitron v2 at every 4 weeks against Check In Class's every 5 months. Klitron v2 also leads on iOS requirement (12.1 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Check In Class ships an update every 5 months, Klitron v2 every 4 weeks. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Check In Class | Klitron v2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Size | 37 MB | 59 MB |
| Requires iOS | 15.1 | **12.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Piraeus Bank S.A.](https://appshunter.io/developer/436776671) | [METALOR S.A.](https://appshunter.io/developer/1271351924) |

## What reviewers say

### Check In Class

[App page](https://appshunter.io/ios/app/check-in-class/id1645069339)

**In-app purchases:** none


### Klitron v2

[App page](https://appshunter.io/ios/app/klitron-v2/id6496689722)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Check In Class free?

Check In Class is free to download, with no in-app purchases.

### Is Klitron v2 free?

Klitron v2 is free to download, with no in-app purchases.

### Do Check In Class or Klitron v2 have ads?

Neither Check In Class nor Klitron v2 shows ads.

### Which is updated more often, Check In Class or Klitron v2?

Check In Class ships an update every 5 months, and Klitron v2 every 4 weeks. Most recently, Check In Class was updated on October 5, 2026 and Klitron v2 on October 15, 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.*