# Postfun vs Open To

The clearest difference is in-app purchases: Open To at none against Postfun's 2. Open To also leads on ads (none vs shown) and review sentiment (100% vs 70%). On price and device support there is nothing between them.

Both are free to download. Postfun sells 2 in-app purchases, starting at $2.99 per month. Open To asks for nothing beyond the download.

Postfun ships an update every 6 weeks, Open To every 8 days. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Postfun | Open To |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Ad-supported | **Free** |
| Size | 45 MB | 37 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Ilya Ostashkov](https://appshunter.io/developer/864012260) | [Jongstra Samuel](https://appshunter.io/developer/1714246123) |

## 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 |


### Open To

[App page](https://appshunter.io/ios/app/open-to/id6470809621)

Easily discover when your friends and family are available for activities. Share your own availability with specific contacts or everyone at once, eliminating the need to constantly ask around. Perfect for spontaneous plans or last-minute get-togethers.

**Highlights:** See friend and family availability, Share custom availability, Target specific contacts, Post to all contacts, Spontaneous activity planning, Last-minute plans

**In-app purchases:** none


## Frequently asked questions

### Is Postfun free?

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

### Is Open To free?

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

### Do Postfun or Open To have ads?

Postfun shows ads; Open To does not.

### Which is updated more often, Postfun or Open To?

Postfun ships an update every 6 weeks, and Open To every 8 days. Most recently, Postfun was updated on October 16, 2026 and Open To on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*