Web MIDI Browser vs miRack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Web MIDI Browser
This app functions as a web browser specifically designed for Web Apps utilizing the Web MIDI API. It enables Bluetooth MIDI connectivity for iOS devices, allowing interaction with compatible musical instruments through web applications.
- Web browser for Web MIDI API
- Bluetooth MIDI functionality
- Connects to Bluetooth MIDI instruments
- Bridges web and MIDI worlds on iOS
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Web MIDI Browser is a web browser for browsing Web Apps made with Web MIDI API. Web MIDI Browser can activate the Bluetooth MIDI functionality which is a new function of iOS 8. Instruments which support Bluetooth MIDI connectivity can be connected to Web Apps by using this App. Web MIDI API is a new web client API. It's being standardized as a part of HTML5. By utilizing the API, you can build web apps that interact with MIDI instruments, for example, keyboards, DJ controllers and so on. Originally, MIDI is a physical interface for connecting electric musical instruments to heighten expressiveness of playing music. But now it's used in many ways. Nowadays, web apps are a keystone of great services. If its power comes into the MIDI world, the usability of MIDI is likely to expand. Web MIDI browser can bridge both worlds in iOS.
miRack
This app offers a comprehensive Eurorack-style modular synthesizer environment for creating custom synths, audio/MIDI effects, and controlling other applications. It features a vast library of modules and integrates with hardware and software for flexible music production and live performance.
- Polyphonic Eurorack-style modular environment
- Over 800 third-party modules
- AUv3 plugin hosting
- Multi-channel audio input/output
- MIDI input/output with clock sync
- Ableton Link support
- iCloud patch syncing
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miRack is a polyphonic Eurorack-style modular environment. It aims to provide user experience and audio quality close to those of the real Eurorack hardware. miRack can be used to build custom synthesizers, audio and MIDI effects, control other apps and equipment, as a playground to explore and learn modular synths, and for live performances. miRack is also available on macOS, including Audio Unit and VST plugins. * Comes with more than 800 modules created by third-party developers and adapted for mobile devices by miRack team. New modules are added regularly. * Includes AUv3 plugin. Can work as an instrument, audio effect or MIDI processor. Supports parameter automation to record and automate changes of almost any virtual module control. * AUv3 hosting capabilities (in-app purchase). Incorporate any AUv3 instrument, effect or MIDI effect plugins into your patches. * Controller module (in-app purchase) allows to design AUv3 user interface for your patch. * Multi-channel audio input and output (in both standalone and AUv3 modes), with full support for Expert Sleepers audio interface modules to integrate with hardware Eurorack equipment. * MIDI input and output, including MIDI clock sync, and MIDI learn function. Automate and control your patch, or control other software and hardware instruments with powerful sequencer modules. * Ableton Link support to synchronise with other music software on the same device or over network. * iCloud support to sync patches between iOS and macOS app versions. * Visit patchstorage.com/platform/mirack for inspiration and to share your patches.
Screenshots
Verdict
The clearest difference is price: Web MIDI Browser at Free against miRack's $14.99. Web MIDI Browser also leads on in-app purchases (none vs 5) and iOS requirement (9.0 vs 14.0). miRack's advantage is rating (4.8 vs 3.1) and review sentiment (86% vs 50%). On ads 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
Web MIDI Browser is free to download; miRack costs $14.99 up front. miRack sells 5 one-off in-app purchases. Web MIDI Browser asks for nothing beyond the download.
miRack holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: miRack has 674 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 50% of Web MIDI Browser's written reviews are positive against 86% of miRack's.
Web MIDI Browser ships an update fortnightly, miRack weekly. The most recent releases landed on October 8, 2026 and October 19, 2026 respectively.
| Parameter | Web MIDI Browser | miRack |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 3.1 (16 ratings) | 4.8 (674 ratings) — better |
| Positive reviews | 50.0% of reviews | 85.9% of reviews — better |
| Number of ratings | 16 | 674 — better |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Mac |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 22 MB | 359 MB |
| Age rating | 17+ | 4+ |
| Developer | Takashi Mizuhiki | MIFKI PTY LTD |
Customer experience
Web MIDI Browser
miRack
Bugs and requests
Web MIDI Browser
Not enough reviews yet to summarise bugs or requests.
miRack
Reported bugs
3 issues- Knob controls sometimes become unresponsive
- Saving and loading patches can be unreliable
- Compatibility issues with older iPad models
Requested features
5 requests- Add polyphonic support
- Implement undo/redo functionality
- Integrate with popular DAWs and audio apps
- Provide more comprehensive module library
- Add preset management and sharing options
In-app purchases
Web MIDI Browser
No in-app purchases
miRack
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$4.99
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- AUv3 Hosting Modules$4.99
- Controller Module$4.99









