--- title: "MIDIWriter — App Overview" url: https://marlvel.ai/apps/midiwriter category: Music developer: Masayuki Akamatsu platforms: ios rating: 1.5 (2 ratings) pricing: paid report_level: overview generated: 2026-04-26 last_verified: "2026-04-26T20:09:29.191Z" --- > **Key Insight:** While the app offers a unique concept for MIDI generation, users report significant limitations in note control, documentation, and interface stability. | Metric | Value | |--------|-------| | Category | Music | | Rating | 1.5 ★ (2) | | Pricing | paid | | Platforms | iOS | | Latest Version (iOS) | 2.0 | | Developer | Masayuki Akamatsu | ## What is MIDIWriter? MIDIWriter is a music utility that converts keyboard input into MIDI note messages and sequences. It features a built-in General MIDI sound engine and supports external MIDI output, allowing users to transform text into musical sequences or percussion patterns. ## Key Features - **Built-in Sound Engine**: Provides 128 instruments and 9 drum kits for immediate audio playback without external apps. - **Phrase Playback**: Converts text input into musical sequences with adjustable tempo, loop options, and rest support. - **Drum Mode**: Offers 9 GM drum kits, including specialized sets like 808/909, Jazz, and Orchestral. - **MIDI Output**: Supports Virtual MIDI and external hardware connectivity with configurable channels and program changes. ## Who is it for? Music enthusiasts and experimental sound designers interested in text-to-MIDI conversion. ## Links - [App Store](https://apps.apple.com/us/app/midiwriter/id520751563?uo=4) - [Full Intelligence Report](https://marlvel.ai/apps/midiwriter) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/midiwriter).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*