# iMib vs Space Letters

The clearest difference is ads: iMib at none against Space Letters's shown. Space Letters's advantage is update cadence (daily vs every 37 months) and iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iMib ships an update every 37 months, Space Letters daily. The most recent releases landed on June 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | iMib | Space Letters |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 37 months | **Daily** |
| Monetization | Free | — |
| Size | 2 MB | 27 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Kilian IT-Consulting](https://appshunter.io/developer/541679965) | [Paul Brecht](https://appshunter.io/developer/1620703287) |

## What reviewers say

### iMib

[App page](https://appshunter.io/ios/app/imib/id894323851)

Send and receive virtual messages hidden in locations around the world. Discover messages left by others, track their journey, and see your own messages travel far. Enjoy a private and engaging way to connect.

**Highlights:** Create and drop virtual messages, Pick up messages left by others, Track message journeys, Social networking features, 100% privacy with no registration, Featured messages on scoreboards

**Features:** macOS Compatibility

**In-app purchases:** none


### Space Letters

[App page](https://appshunter.io/ios/app/space-letters/id6479270951)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iMib free?

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

### Is Space Letters free?

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

### Do iMib or Space Letters have ads?

Space Letters shows ads; iMib does not.

### Which is updated more often, iMib or Space Letters?

iMib ships an update every 37 months, and Space Letters daily. Most recently, iMib was updated on June 10, 2026 and Space Letters on September 9, 2026.

---

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