# Thiên Cơ vs DRM AOF

The clearest difference is update cadence: DRM AOF at every 5 days against Thiên Cơ's every 2 months. Thiên Cơ's advantage is iOS requirement (11.0 vs 14.0). 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.

Thiên Cơ ships an update every 2 months, DRM AOF every 5 days. The most recent releases landed on September 9, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | Thiên Cơ | DRM AOF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 38 MB | 95 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Vo Trong Nghia](https://appshunter.io/developer/1590419979) | [D&L Technology Integration And Consulting Joint Stock Company](https://appshunter.io/developer/1436285979) |

## What reviewers say

### Thiên Cơ

[App page](https://appshunter.io/ios/app/thien-co/id1590419977)

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

**In-app purchases:** none


### DRM AOF

[App page](https://appshunter.io/ios/app/drm-aof/id6680172612)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thiên Cơ free?

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

### Is DRM AOF free?

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

### Do Thiên Cơ or DRM AOF have ads?

Neither Thiên Cơ nor DRM AOF shows ads.

### Which is updated more often, Thiên Cơ or DRM AOF?

Thiên Cơ ships an update every 2 months, and DRM AOF every 5 days. Most recently, Thiên Cơ was updated on September 9, 2026 and DRM AOF on May 19, 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.*