Comparison

HAP Studio vs Pi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HAP Studio

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
Read full description

HAP is a design tool for creating and learning haptics. Create high-quality haptics using an intuitive visual editor or AI—no coding required. ■ Create Haptics Fine-tune intensity, sharpness, and timing with an intuitive visual editor while previewing your haptics in real time. * Fine-tune haptics with a visual editor * Generate haptics from natural language using AI * Generate haptics from Lottie JSON * Preview haptics in real time Export your haptics as **Swift, AHAP, or JSON** and easily integrate them into your app. ■ Use Haptics Access a library of 30 ready-to-use haptics available as a one-time purchase. Use them for buttons, notifications, success and error feedback, and many other common interactions. ■ Learn Haptics Learn the fundamentals of haptic design with educational content covering accessibility, best practices, and common mistakes. ■ Contact & Social Email: hapstudioapp@gmail.com X: https://x.com/HapStudioApp ■ Support Privacy Policy: https://hapstudio.design/en/privacy/ Terms of Service : https://hapstudio.design/en/terms/ EULA:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact: hapstudioapp@gmail.com --- This app is primarily designed and optimized for use on iPhone. Haptic feedback is not available on iPad. To experience the app as intended, we recommend using it on an iPhone.

About

Pi

Features
Read full description

pi is a coding agent that runs on your iPhone and iPad. Ask it for something and it gets to work: it writes and runs code in a real shell and Python, uses git, browses the web, and builds apps for you, right on the device. WHAT IT DOES • Runs commands in a POSIX shell with curl, git and the usual Unix tools • Writes and runs Python, and installs pure-Python packages with pip • Clones repositories, edits files, and commits and pushes with your GitHub account • Browses the web in its own browser, and fills in forms for you • Builds apps: extensions with their own pages, kept in the session's dock • Charts data, reads the photos and files you attach, and takes dictation • Keeps working in the background, and picks up where it left off YOUR MODELS Use the AI provider you already have (sign in, or add an API key), or connect pi to any OpenAI-compatible server, such as Ollama on your Mac. Small models can run entirely on the device. EXTENSIONS AND SKILLS pi uses the pi coding agent's extensions and skills. Install them from GitHub, npm or a file, or ask the agent to write one. You can read and change every extension's code in Settings, and pi asks before any extension uses the camera, the microphone or your location. PRIVATE BY DESIGN pi has no account and collects nothing. Your sessions stay on your device, and your sign-ins and settings can follow you through your iCloud Keychain. What a session sends goes only to the model provider and the sites you choose. Card and document numbers wait in a vault behind Face ID. ALSO MCP servers, Shortcuts ("Ask pi"), sessions you can share as a file, and remote Linux machines through Crabbox. pi needs an account with an AI provider, your own model server, or a model downloaded to the device.

Screenshots

HAP Studio4 screens
Pi4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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

Scorecard2 real differences · 8 level
HAP Studio versus Pi: the parameters behind the verdict, then further details
ParameterHAP StudioPi
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings1 — better—
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS26.026.0
Further details — not scored
Size22 MB163 MB
Age rating4+17+
DeveloperYUI ATARASHIReindeer AI Inc

Customer experience

HAP Studio

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Pi

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

HAP Studio

No in-app purchases

None

Pi

No in-app purchases

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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