# Postfun vs Astruno

The clearest difference is rating: Astruno at 5.0 against Postfun's 4.4. Astruno also leads on in-app purchases (none vs 2) and ads (none vs shown). Postfun's advantage is ratings volume (61 vs 4). 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. Astruno asks for nothing beyond the download.

Astruno holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Postfun has 61 ratings behind it against 4, so its average is the more settled of the two.

Postfun ships an update every 6 weeks, Astruno weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Postfun | Astruno |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (61 ratings)](https://appshunter.io/ios/app/postfun-postcard-exchange/id1397899662/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/astruno/id6758970345/reviews)** |
| Number of ratings | **61** | 4 |
| Positive reviews | 70.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Ad-supported | **Free** |
| Size | 45 MB | 75 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 9+ | 12+ |
| Developer | [Ilya Ostashkov](https://appshunter.io/developer/864012260) | [Mokabyte AI](https://appshunter.io/developer/1800872412) |

## 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 |


### Astruno

[App page](https://appshunter.io/ios/app/astruno/id6758970345)

Share your thoughts and discover others who feel the same way through a unique 3D globe and celestial sky interface. Connect with people globally based on shared emotions and experiences, fostering genuine connections without the noise of traditional social media.

**Highlights:** 3D interactive globe visualization of thoughts, Celestial sky view grouped by theme and emotion, Search for thoughts by feeling, not keywords, Text-only sharing for focused communication, Pseudonymous profiles for honest expression, Direct messaging and following features, Constellation-based conversation growth

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Postfun free?

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

### Is Astruno free?

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

### Which has better reviews, Postfun or Astruno?

Astruno is rated higher. Postfun averages 4.4 out of 5 from 61 ratings, while Astruno averages 5.0 from 4 ratings.

### Do Postfun or Astruno have ads?

Postfun shows ads; Astruno does not.

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

Postfun ships an update every 6 weeks, and Astruno weekly. Most recently, Postfun was updated on November 2, 2026 and Astruno on October 31, 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.*