# Knob Sketch: Retro Drawing — Turn the knobs. Shake to erase

> Turn the knobs. Shake to erase (iPhone/iPad app by BY MILLY CO. LTD.)

- Source: https://appshunter.io/ios/app/knob-sketch-retro-drawing/id6817453427 (this page in markdown: same URL + `.md`)
- Developer: [BY MILLY CO. LTD](https://appshunter.io/developer/6785222952)
- Category: Entertainment, Graphics & Design
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Chinese (Traditional, Taiwan)
- Released: 2026-10-01
- Data updated: 2026-10-05

## What is Knob Sketch?

Knob Sketch brings the classic knob drawing toy to your iPhone.

Turn the left knob to draw side to side and the right knob to draw up and down. Turn both together for diagonals and curves. There's no finger painting and no undo, just one continuous line and your patience. That's the whole charm.

SHAKE TO ERASE, THE REAL WAY
Give your iPhone a gentle shake and the drawing fades a little. Shake harder to wipe it clean. Stop halfway and draw something new over the faded ghost of the old one.

FEELS LIKE THE REAL TOY
• Knurled knobs that spin under your thumbs
• Soft haptic clicks as you turn
• A grey "magic screen" with fine, dark lines
• Built for landscape, with a thumb on each knob

KEEP YOUR MASTERPIECES
• Save drawings to your in-app gallery
• Reopen any drawing and keep adding to it
• Your work in progress is kept safe even if you close the app

SHARE THEM
• Export with the classic red frame, ready for Instagram
• Or export the screen only
• Save to Photos, AirDrop, or send to friends

PRIVATE BY DESIGN
No accounts, no ads, no tracking. Your drawings stay on your device.

Available in English and Traditional Chinese.

## Is Knob Sketch safe?

Not enough ratings yet to assess Knob Sketch.

## Is Knob Sketch legit?

Knob Sketch: Retro Drawing appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Knob Sketch is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-01

No release notes.

## More apps by BY MILLY CO. LTD

- [Scented Soul Diary](https://appshunter.io/ios/app/scented-soul-diary/id6785222950)
- [Doodle Schedule](https://appshunter.io/ios/app/doodle-schedule/id6787949478)
- [RollFilmCamera](https://appshunter.io/ios/app/rollfilmcamera/id6791353192)

All apps by BY MILLY CO. LTD: https://appshunter.io/developer/6785222952

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*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 2026-10-05.*