# F.A.S.T baby vs Space Interface

The clearest difference is update cadence: Space Interface at every 8 months against F.A.S.T baby's every 55 months. Space Interface also leads on iOS requirement (12.0 vs 15.6). On price, ads, 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.

F.A.S.T baby ships an update every 55 months, Space Interface every 8 months. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | F.A.S.T baby | Space Interface |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (11 ratings)](https://appshunter.io/ios/app/fast-baby/id1217030601/reviews)** | — |
| Number of ratings | **11** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 55 months | **Every 8 months** |
| Monetization | Free | — |
| Size | 1 MB | 145 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Philippe Zay](https://appshunter.io/developer/1200498230) | [Haichao Zhang](https://appshunter.io/developer/1294373918) |

## What reviewers say

### F.A.S.T baby

[App page](https://appshunter.io/ios/app/fast-baby/id1217030601)

This app offers a calming visual experience for babies and very young children with colorful, moving spiral patterns. Tapping the screen generates new spirals, or they change automatically after a brief pause, providing a simple and engaging display.

**Highlights:** Tap to generate new spirals, Automatic spiral changes, Simple full-screen interface, Designed for young children, Colorful moving patterns

**Features:** macOS Compatibility

**In-app purchases:** none


### Space Interface

[App page](https://appshunter.io/ios/app/space-interface/id1294373919)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is F.A.S.T baby free?

F.A.S.T baby is free to download, with no in-app purchases.

### Is Space Interface free?

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

### Do F.A.S.T baby or Space Interface have ads?

Neither F.A.S.T baby nor Space Interface shows ads.

### Which is updated more often, F.A.S.T baby or Space Interface?

F.A.S.T baby ships an update every 55 months, and Space Interface every 8 months. Most recently, F.A.S.T baby was updated on November 2, 2026 and Space Interface on November 11, 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.*