# Hape Engine vs PrepNote

The clearest difference is in-app purchases: Hape Engine at none against PrepNote's 1. Hape Engine also leads on ads (none vs shown) and iOS requirement (8.0 vs 17.5). PrepNote's advantage is update cadence (every 7 months vs every 19 months). On price and device support there is nothing between them.

Both are free to download. PrepNote sells 1 one-off in-app purchase. Hape Engine asks for nothing beyond the download.

Hape Engine ships an update every 19 months, PrepNote every 7 months. The most recent releases landed on June 1, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Hape Engine | PrepNote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (7 ratings)](https://appshunter.io/ios/app/hape-engine-hd/id1425737166/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 15 MB | 7 MB |
| Requires iOS | **8.0** | 17.5 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Hape](https://appshunter.io/developer/1324043096) | [Eri Tominaga](https://appshunter.io/developer/1528527513) |

## What reviewers say

### Hape Engine

[App page](https://appshunter.io/ios/app/hape-engine-hd/id1425737166)

Control Hape's toy engines remotely via Bluetooth. Simulate an authentic driving experience with sound and light effects, and operate the engine's headlight and horn.

**Highlights:** Remote engine control, Bluetooth connectivity, Forward and reverse movement, Acceleration control, Sound effects, Light effects, Headlight and horn operation

**Features:** macOS Compatibility

**In-app purchases:** none


### PrepNote

[App page](https://appshunter.io/ios/app/prepnote/id6648762613)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $1.99 | one-time |


## Frequently asked questions

### Is Hape Engine free?

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

### Is PrepNote free?

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

### Do Hape Engine or PrepNote have ads?

PrepNote shows ads; Hape Engine does not.

### Which is updated more often, Hape Engine or PrepNote?

Hape Engine ships an update every 19 months, and PrepNote every 7 months. Most recently, Hape Engine was updated on June 1, 2026 and PrepNote on September 14, 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.*