# OpenCCman Open Chinese Convert vs RedoCalc

The clearest difference is in-app purchases: RedoCalc at none against OpenCCman Open Chinese Convert's 1. RedoCalc also leads on update cadence (every 3 days vs every 3 months). OpenCCman Open Chinese Convert's advantage is ads (none vs shown) and device support (4 vs 1). On price there is nothing between them.

Both are free to download. OpenCCman Open Chinese Convert sells 1 one-off in-app purchase. RedoCalc asks for nothing beyond the download.

OpenCCman Open Chinese Convert ships an update every 3 months, RedoCalc every 3 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | OpenCCman Open Chinese Convert | RedoCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 21 MB | 3 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [伟 葛](https://appshunter.io/developer/1028908732) | [Toshiyuki Kuwabara](https://appshunter.io/developer/1649322074) |

## What reviewers say

### OpenCCman Open Chinese Convert

[App page](https://appshunter.io/ios/app/openccman-open-chinese-convert/id6474449401)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $2.99 | one-time |


### RedoCalc

[App page](https://appshunter.io/ios/app/redocalc/id6743318834)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OpenCCman Open Chinese Convert free?

OpenCCman Open Chinese Convert is free to download, with in-app purchases available.

### Is RedoCalc free?

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

### Do OpenCCman Open Chinese Convert or RedoCalc have ads?

RedoCalc shows ads; OpenCCman Open Chinese Convert does not.

### Which is updated more often, OpenCCman Open Chinese Convert or RedoCalc?

OpenCCman Open Chinese Convert ships an update every 3 months, and RedoCalc every 3 days. Most recently, OpenCCman Open Chinese Convert was updated on October 7, 2026 and RedoCalc on October 11, 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.*