# Postfun vs 尺书

The clearest difference is ads: 尺书 at none against Postfun's shown. 尺书 also leads on device support (3 vs 1) and iOS requirement (9.0 vs 16.6). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Postfun sells 2 in-app purchases, starting at $2.99 per month and 尺书 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Postfun ships an update every 6 weeks, 尺书 every 5 weeks. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Postfun | 尺书 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (61 ratings)](https://appshunter.io/ios/app/postfun-postcard-exchange/id1397899662/reviews)** | — |
| Number of ratings | **61** | — |
| Positive reviews | 70.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Ad-supported | — |
| Size | 45 MB | 88 MB |
| Requires iOS | 16.6 | **9.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Ilya Ostashkov](https://appshunter.io/developer/864012260) | [ShenZhen ChuanChi Technology Co., Ltd.](https://appshunter.io/developer/1504635833) |

## What reviewers say

### Postfun

[App page](https://appshunter.io/ios/app/postfun-postcard-exchange/id1397899662)

Connect with people globally by exchanging real paper postcards. Discover new friends, collect unique cards and stamps, and share a piece of your world. The more you send, the more you receive.

**Highlights:** Send and receive real postcards, Connect with international users, Collect cards and stamps, Discover new cultures, Global postcard community

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Postfun - Monthly subscription | $2.99 | per month |
| Postfun - Annual subscription | $29.99 | per year |


### 尺书

[App page](https://appshunter.io/ios/app/id1504635834)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Email慢递服务 | $0.99 | one-time |


## Frequently asked questions

### Is Postfun free?

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

### Is 尺书 free?

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

### Do Postfun or 尺书 have ads?

Postfun shows ads; 尺书 does not.

### Which is updated more often, Postfun or 尺书?

Postfun ships an update every 6 weeks, and 尺书 every 5 weeks. Most recently, Postfun was updated on October 24, 2026 and 尺书 on October 3, 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.*