# Postfun vs OITOKU

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

Both are free to download. Postfun sells 2 in-app purchases, starting at $2.99 per month and OITOKU sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Postfun ships an update every 6 weeks, OITOKU monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Postfun | OITOKU |
| --- | --- | --- |
| 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 | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 45 MB | 123 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 9+ | 17+ |
| Developer | [Ilya Ostashkov](https://appshunter.io/developer/864012260) | [Takashi Kanamori](https://appshunter.io/developer/1615051951) |

## 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 |


### OITOKU

[App page](https://appshunter.io/ios/app/oitoku-leave-notes-in-places/id6766019711)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| メッセージ枠 +10 | $0.49 | one-time |
| メッセージ枠 +20 | $0.99 | one-time |
| メッセージ枠 +30 | $1.99 | one-time |


## Frequently asked questions

### Is Postfun free?

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

### Is OITOKU free?

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

### Do Postfun or OITOKU have ads?

Postfun shows ads; OITOKU does not.

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

Postfun ships an update every 6 weeks, and OITOKU monthly. Most recently, Postfun was updated on October 24, 2026 and OITOKU on October 25, 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.*