# Flippy the Train vs Rule It

The clearest difference is in-app purchases: Flippy the Train at none against Rule It's 3. Flippy the Train also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Rule It sells 3 one-off in-app purchases. Flippy the Train asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Flippy the Train | Rule It |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/flippy-the-train/id957889052/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Free | — |
| Size | 3 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Karl Voskuil](https://appshunter.io/developer/957889051) | [GLBW Consultoria de Engenharia e Inform?tica ltda](https://appshunter.io/developer/878141719) |

## What reviewers say

### Flippy the Train

[App page](https://appshunter.io/ios/app/flippy-the-train/id957889052)

Solve digital circuitry puzzles by building train tracks that model logic gates like NOT, AND, and OR. Challenge yourself to create complex circuits such as XOR gates and half-adders with minimal track segments. Explore a sandbox mode for freeform track creation.

**Highlights:** Digital circuitry puzzles, Logic gate simulation (NOT, AND, OR, XOR), Half-adder circuit challenges, Sandbox mode for track creation, Minimal track segment challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### Rule It

[App page](https://appshunter.io/ios/app/rule-it/id6474252794)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 New Games | $0.49 | one-time |
| 225 New Games | $0.99 | one-time |
| 500 New Games | $1.99 | one-time |


## Frequently asked questions

### Is Flippy the Train free?

Flippy the Train is free to download, with no in-app purchases.

### Is Rule It free?

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

### Do Flippy the Train or Rule It have ads?

Neither Flippy the Train nor Rule It shows ads.

### Which is updated more often, Flippy the Train or Rule It?

Flippy the Train ships an update every 6 months, and Rule It every 6 months. Most recently, Flippy the Train was updated on September 28, 2026 and Rule It on September 30, 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.*