# OPUS Community vs Chellam

The clearest difference is update cadence: Chellam at every 6 days against OPUS Community's fortnightly. 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.

OPUS Community ships an update fortnightly, Chellam every 6 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OPUS Community | Chellam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Size | 227 MB | 257 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [OPUS Community LTD](https://appshunter.io/developer/1716407945) | [ARCHNIX LTD](https://appshunter.io/developer/1546566322) |

## What reviewers say

### OPUS Community

[App page](https://appshunter.io/ios/app/opus-community/id6670794453)

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

**In-app purchases:** none


### Chellam

[App page](https://appshunter.io/ios/app/chellam/id6742650241)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is OPUS Community free?

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

### Is Chellam free?

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

### Do OPUS Community or Chellam have ads?

Neither OPUS Community nor Chellam shows ads.

### Which is updated more often, OPUS Community or Chellam?

OPUS Community ships an update fortnightly, and Chellam every 6 days. Most recently, OPUS Community was updated on October 27, 2026 and Chellam on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*