# 义工时间 vs KEYMATE

The clearest difference is iOS requirement: 义工时间 at 9.0 against KEYMATE's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 28, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 义工时间 | KEYMATE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 27 MB | 99 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [义工时间(北京)文化传播有限公司](https://appshunter.io/developer/1067704863) | [Steelmate Co., Ltd.](https://appshunter.io/developer/1184738861) |

## What reviewers say

### 义工时间

[App page](https://appshunter.io/ios/app/app/id1123415663)

**In-app purchases:** none


### KEYMATE

[App page](https://appshunter.io/ios/app/keymate/id6476905990)

**In-app purchases:** none


## Frequently asked questions

### Is 义工时间 free?

义工时间 is free to download, with no in-app purchases.

### Is KEYMATE free?

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

### Do 义工时间 or KEYMATE have ads?

Neither 义工时间 nor KEYMATE shows ads.

### Which is updated more often, 义工时间 or KEYMATE?

义工时间 ships an update every 2 months, and KEYMATE every 2 months. Most recently, 义工时间 was updated on September 28, 2026 and KEYMATE 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.*