# SUS4 Sketchpad — Hum a tune. Get a MIDI sketch.

> Hum a tune. Get a MIDI sketch. (iPhone/iPad app by ThePaulSmith.)

- Source: https://appshunter.io/ios/app/sus4-sketchpad/id6777230194 (this page in markdown: same URL + `.md`)
- Developer: [ThePaulSmith](https://appshunter.io/developer/319584506)
- Category: Music, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 20 MB
- Languages: American English
- Released: 2026-06-18
- Data updated: 2026-07-27
- User reviews in markdown: https://appshunter.io/ios/app/sus4-sketchpad/id6777230194/reviews.md

## What is SUS4 Sketchpad?

Hum the melody. Get the MIDI sketch.

Musical ideas come in moments — a melody you are humming in the kitchen, a chord sequence that surfaced while you were noodling before practice, a lyric fragment that arrived before the tune did. SUS4 Sketchpad is where those ideas become something you can actually work with.

Hum or sing into the mic and the app transcribes the melody to MIDI. From there you can edit, export to your DAW, and build on the idea without having to figure it out from memory. The on-device lyric assist feature — powered by a language model that runs entirely on your iPhone — helps you develop a lyric fragment into a full verse or chorus without opening another app or sending anything to a server.

• Hum-to-MIDI transcription: sing a melody, get editable MIDI
• MIDI sketch editor — adjust notes before you export
• On-device lyric assist, powered by an AI model that never leaves your phone
• MIDI export to any DAW
• Subscribe monthly, or unlock the full SUS4 suite forever: unlimited sketches, lyric assist, chord suggestions, and MIDI export

All AI runs on your device. Your melodies and lyrics stay private.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| SUS4 Sketchpad Pro Monthly | $0.99 | per month |
| SUS4 All-Access | $4.99 | per month |



## Version history (last 2 releases)

### 1.1.0 — 2026-07-02

Every advertised feature is now fully functional, Pro genuinely unlocks real features, and the new SUS4 All-Access pass unlocks all 24 SUS4 apps with a 7-day free trial. Faster and clearer throughout.

### 1.0 — 2026-06-21

No release notes.

## More apps by ThePaulSmith

- [iScrobble Pick And Mix](https://appshunter.io/ios/app/iscrobble-pick-and-mix/id319584503)
- [iSwipeMusic](https://appshunter.io/ios/app/iswipemusic/id334689181)
- [iShuffleAlbums](https://appshunter.io/ios/app/ishufflealbums/id335009718)
- [iBreathalyzer](https://appshunter.io/ios/app/ibreathalyzer/id369686249)
- [SUS4 Pitch Pipe](https://appshunter.io/ios/app/sus4-pitch-pipe/id6777229584)
- [SUS4 Chord ID](https://appshunter.io/ios/app/sus4-chord-id/id6777229621)

All apps by ThePaulSmith: https://appshunter.io/developer/319584506

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-27.*