# CLAVIS vs CHAM

The clearest difference is iOS requirement: CLAVIS at 8.0 against CHAM's 13.0. On price, update cadence, 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.

CLAVIS ships an update every 22 months, CHAM every 39 months. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | CLAVIS | CHAM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 22 months** | Every 39 months |
| Size | 3 MB | 3 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Takahashi](https://appshunter.io/developer/1301211980) | [Ryohei Oosawa](https://appshunter.io/developer/1628237823) |

## What reviewers say

### CLAVIS

[App page](https://appshunter.io/ios/app/clavis/id1508467576)

**Features:** macOS Compatibility

**In-app purchases:** none


### CHAM

[App page](https://appshunter.io/ios/app/chamo2lanhr/id1628237821)

**In-app purchases:** none


## Frequently asked questions

### Is CLAVIS free?

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

### Is CHAM free?

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

### Do CLAVIS or CHAM have ads?

Neither CLAVIS nor CHAM shows ads.

### Which is updated more often, CLAVIS or CHAM?

CLAVIS ships an update every 22 months, and CHAM every 39 months. Most recently, CLAVIS was updated on November 7, 2026 and CHAM on November 12, 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.*