# DS0 vs Chitok Chinese

The clearest difference is in-app purchases: DS0 at none against Chitok Chinese's 2. DS0 also leads on iOS requirement (15.0 vs 17.0). Chitok Chinese's advantage is update cadence (every 9 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Chitok Chinese sells 2 in-app purchases, starting at $7.99 per month. DS0 asks for nothing beyond the download.

DS0 ships an update every 3 months, Chitok Chinese every 9 days. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | DS0 | Chitok Chinese |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Size | 27 MB | 152 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Davy Raitt](https://appshunter.io/developer/1795318281) | [XU ZHAO](https://appshunter.io/developer/6774023434) |

## What reviewers say

### DS0

[App page](https://appshunter.io/ios/app/ds0-001-datasys-plus-exam-prep/id6761265808)

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

**In-app purchases:** none


### Chitok Chinese

[App page](https://appshunter.io/ios/app/chitok-chinese/id6774023402)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chitok Pro Monthly | $7.99 | per month |
| Chitok Pro Quarterly | $17.99 | per 3 months |


## Frequently asked questions

### Is DS0 free?

DS0 is free to download, with no in-app purchases.

### Is Chitok Chinese free?

Chitok Chinese is free to download, with in-app purchases available.

### Do DS0 or Chitok Chinese have ads?

Neither DS0 nor Chitok Chinese shows ads.

### Which is updated more often, DS0 or Chitok Chinese?

DS0 ships an update every 3 months, and Chitok Chinese every 9 days. Most recently, DS0 was updated on October 25, 2026 and Chitok Chinese on October 7, 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.*