# HAP Studio vs Pi

The clearest difference is review sentiment: HAP Studio at 100% against Pi's 0%. Pi's advantage is update cadence (daily vs weekly). 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.

HAP Studio ships an update weekly, Pi daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | HAP Studio | Pi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hap-studio/id6777100398/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 163 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [YUI ATARASHI](https://appshunter.io/developer/1896682176) | [Reindeer AI Inc](https://appshunter.io/developer/6821315343) |

## What reviewers say

### HAP Studio

[App page](https://appshunter.io/ios/app/hap-studio/id6777100398)

Design and learn about haptics with an intuitive visual editor or AI. Generate custom haptic feedback for apps and export in various formats. Access a library of pre-made haptics and educational content.

**Highlights:** Visual haptic editor, AI-generated haptics, Lottie JSON import, Real-time preview, Swift, AHAP, JSON export, Haptic library, Educational content

**In-app purchases:** none


### Pi

[App page](https://appshunter.io/ios/app/pi-local-agent-harness/id6821315341)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is HAP Studio free?

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

### Is Pi free?

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

### Do HAP Studio or Pi have ads?

Neither HAP Studio nor Pi shows ads.

### Which is updated more often, HAP Studio or Pi?

HAP Studio ships an update weekly, and Pi daily. Most recently, HAP Studio was updated on October 31, 2026 and Pi on October 31, 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.*