# App Design Lab: UI/UX Practice — Learn interface rules by doing

> Learn interface rules by doing (iPhone/iPad app by hyunho lee.)

- Source: https://appshunter.io/ios/app/app-design-lab-uiux-practice/id6808132576 (this page in markdown: same URL + `.md`)
- Developer: [hyunho lee](https://appshunter.io/developer/1502508537)
- Category: Lifestyle, Education
- Price: $29.99 with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 35 MB
- Languages: Chinese (Simplified, China), Danish, Russian, Norwegian Bokmål, Indonesian, Turkish, Greek, German (Germany), Italian, Czech and 13 more
- Released: 2026-09-13
- Data updated: 2026-10-26

## What is App Design Lab?

Great UI/UX is a stack of small decisions. App Design Lab is a hands-on workbook where you use screens that get those decisions wrong, then see exactly why.
Each lesson tackles one decision in five steps: try a broken screen, write what felt off, see why, compare it with the fix, and write down what you learned.

23 HANDS-ON LESSONS
Try it: a sample app opens at full size with a task. The screen you are using breaks a rule on purpose.
Write it down: before you see the answer, note what you noticed.
See why: the decision, the reasoning behind it, and what falls apart if you flip it, right next to what you wrote.
Compare: switch between the broken screen and the fixed one in the same spot and spot the difference.
Write what you learned: keep one sentence you can reuse next time. Your notes collect in the Notes tab, where you can copy them or export them as a Markdown file.

A LIBRARY FOR GOING DEEPER
68 topics: toolbars, titles, search, tab bars, sheets, and text, each drawn as a mockup. Tap any part of the picture to see the rule behind it, and open a live example screen for every topic.
100 mistakes: what was done, why it seemed right at the time, and what changes once it is fixed, written as short retrospectives.
7 principles: the core judgments behind all 68 topics, shown by flipping the same screen between a broken and a correct layout.
5 labs: adjust toolbar placement, scroll edge effects, text truncation, tab bar setup, and sheet height, and get a verdict in real time.
Quiz: 396 questions that ask you to look at a screen and make the call.

MADE FOR
Developers who want a reason behind every button they place
Designers who want to get comfortable with the latest toolbars, tab bars, and sheets
Teams who need to explain the why in design reviews

Try 3 lessons, 10 mistakes, the toolbar lab, and the first quiz chapter for free. The 68 topics, 7 principles, and your notes are always free.
A weekly subscription, a monthly subscription, or a one-time lifetime purchase unlocks every lesson and resource.
Subscriptions renew automatically at the same price unless canceled at least 24 hours before the period ends. Manage or cancel anytime in your App Store account settings.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
There is no account, and your progress and notes stay on your device. The whole app is available in English, Japanese, and Korean.

## Pricing and in-app purchases

Base price: $29.99.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Weekly | $1.99 | per 7 days |
| Pro Monthly | $5.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| App Design Lab Pro | $39.99 | one-time |


## Is App Design Lab safe?

Not enough ratings yet to assess App Design Lab.

## Is App Design Lab legit?

App Design Lab: UI/UX Practice appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for App Design Lab is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.0.6 — 2026-10-24

Now available in 21 more languages.
Learn in German, French and more.
The app opens in your device's language.

### 1.0.3 — 2026-10-22

Now available in English and Japanese.
Follows Increase Contrast and Reduce Motion.
If you've been with us, everything stays unlocked.
Quiz questions no longer give away the answer.
Pick up your lesson right from Shortcuts.

### 1.0.2 — 2026-10-10

앱이 더 안정적으로 동작하도록 다듬었습니다.
진행 중인 레슨과 노트는 그대로 이어집니다.
학습 기록은 지금처럼 기기 안에만 저장됩니다.

### 1.0.1 — 2026-10-01

진행도를 누르면 멈춘 단계에서 바로 이어집니다.
예제에서 돌아가는 버튼을 알아보기 쉬워졌습니다.
항목과 원칙에서 관련 실수로 바로 넘어갑니다.
실수 100편 모두 회고를 읽을 수 있습니다.
예제 속 버튼을 누르면 반응이 보입니다.

### 1.0 — 2026-09-13

No release notes.

## Apps similar to App Design Lab

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Fliptik - StandBy Flip Clock](https://appshunter.io/ios/app/fliptik-standby-flip-clock/id6813540653) | 5.0 (1) | Free | Lifestyle |
| [Horaly: Planetary Hours](https://appshunter.io/ios/app/horaly-planetary-hours/id6760537574) | 1.0 (1) | Free | Lifestyle |
| [Jowua](https://appshunter.io/ios/app/jowua/id6751144164) | 1.0 (1) | Free | Lifestyle |
| [Music Mate: Songs & Friends](https://appshunter.io/ios/app/music-mate-songs-and-friends/id1605379758) | 4.3 (123) | Free | Lifestyle |
| [내집다오 - 내 집 마련의 첫걸음](https://appshunter.io/ios/app/id1523983937) | 5.0 (2) | Free | Lifestyle |

## More apps by hyunho lee

- [Clip Keyboard: Paste Snippets](https://appshunter.io/ios/app/clip-keyboard-paste-snippets/id1543660502)
- [커밋 가든](https://appshunter.io/ios/app/id1560691489)
- [아디오스](https://appshunter.io/ios/app/id1590869675)
- [매일체크인](https://appshunter.io/ios/app/id1614664651)
- [Dalbit: Sleep Sounds & Noise](https://appshunter.io/ios/app/dalbit-sleep-sounds-and-noise/id1626715109)
- [LeeoCon](https://appshunter.io/ios/app/leeocon/id1627216318)

All apps by hyunho lee: https://appshunter.io/developer/1502508537

---

*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 2026-10-26.*