# Postfun vs Left Traffic

The clearest difference is in-app purchases: Left Traffic at none against Postfun's 2. Left Traffic also leads on ads (none vs shown) and update cadence (weekly vs every 6 weeks). On price, device support 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. Left Traffic asks for nothing beyond the download.

Postfun ships an update every 6 weeks, Left Traffic weekly. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Postfun | Left Traffic |
| --- | --- | --- |
| 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 | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 45 MB | 52 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 9+ | 12+ |
| Developer | [Ilya Ostashkov](https://appshunter.io/developer/864012260) | [Azhar Zuberi](https://appshunter.io/developer/6774315612) |

## 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 | $24.99 | per year |


### Left Traffic

[App page](https://appshunter.io/ios/app/left-traffic/id6804358188)

**In-app purchases:** none


## Frequently asked questions

### Is Postfun free?

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

### Is Left Traffic free?

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

### Do Postfun or Left Traffic have ads?

Postfun shows ads; Left Traffic does not.

### Which is updated more often, Postfun or Left Traffic?

Postfun ships an update every 6 weeks, and Left Traffic weekly. Most recently, Postfun was updated on October 16, 2026 and Left Traffic on October 8, 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.*