# DSD Connect Mobile vs CHANG CHI

The clearest difference is update cadence: CHANG CHI at every 3 weeks against DSD Connect Mobile's every 6 weeks. DSD Connect Mobile's advantage is iOS requirement (13.0 vs 15.0). 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.

DSD Connect Mobile ships an update every 6 weeks, CHANG CHI every 3 weeks. The most recent releases landed on October 26, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | DSD Connect Mobile | CHANG CHI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 25 MB | 63 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Numeric Computer Systems](https://appshunter.io/developer/1384779947) | [CHANG CHI](https://appshunter.io/developer/1690011690) |

## What reviewers say

### DSD Connect Mobile

[App page](https://appshunter.io/ios/app/dsd-connect-mobile/id1384779948)

**Features:** macOS Compatibility

**In-app purchases:** none


### CHANG CHI

[App page](https://appshunter.io/ios/app/chang-chi/id6449670494)

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

**In-app purchases:** none


## Frequently asked questions

### Is DSD Connect Mobile free?

DSD Connect Mobile is free to download, with no in-app purchases.

### Is CHANG CHI free?

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

### Do DSD Connect Mobile or CHANG CHI have ads?

Neither DSD Connect Mobile nor CHANG CHI shows ads.

### Which is updated more often, DSD Connect Mobile or CHANG CHI?

DSD Connect Mobile ships an update every 6 weeks, and CHANG CHI every 3 weeks. Most recently, DSD Connect Mobile was updated on October 26, 2026 and CHANG CHI on October 14, 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.*