# AI Lab: Learn AI Visually — Learn AI by experimenting

> Learn AI by experimenting (iPhone/iPad app by 阳 张.)

- Source: https://appshunter.io/ios/app/ai-lab-learn-ai-visually/id6763028904 (this page in markdown: same URL + `.md`)
- Developer: [阳 张](https://appshunter.io/developer/1832378186)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 26.5 · 10 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-10-19
- Data updated: 2026-10-31

## What is AI Lab?

Understand how AI works by experimenting with a real language model on your iPhone or iPad.

AI Lab pairs short explanations with interactive visualizations. Type a prompt, inspect tokens and attention, change a setting, and see what happens. The small model runs on your device, so the core lessons and Lab work offline without an account or API key.

LEARN STEP BY STEP
Follow 20 lessons across five chapters, from tokens, embeddings, and attention to training, retrieval, agents, evaluation, LoRA, diffusion, and more. Each lesson combines an idea, guided activities, and a short understanding check. Saved progress helps you continue where you left off.

LOOK INSIDE A MODEL
Explore tokenization, embeddings, attention heads, layers, next-token probabilities, sampling, and training. The app distinguishes live model results from simplified teaching demonstrations.

EXPERIMENT IN THE LAB
Generate text with the small on-device model and inspect its predictions. Change sampling controls and compare how the output changes. This is a learning tool, not a general-purpose AI assistant.

EXPLORE RESEARCH
The Pro Papers library offers curated research entries, context, and links to original sources. An in-app reader opens supported pages from their original websites. Internet access is required for external papers and websites; access depends on each source.

MADE FOR IPHONE AND IPAD
Use English or Simplified Chinese, choose light or dark appearance, and learn with layouts that adapt to your screen.

FREE TO START
Lessons 1–4 and the Lab are free. An optional one-time AI Lab Pro purchase unlocks all 20 lessons and the Papers library. No subscription. Restore eligible purchases with the same Apple Account.

Privacy policy: https://github.com/James8605/PrivacyPolicy/blob/master/AILab_en.md
Support: https://james1895.xyz/support/6763028904

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro | $2.99 | one-time |


## Is AI Lab safe?

Not enough ratings yet to assess AI Lab.

## Is AI Lab legit?

AI Lab: Learn AI Visually appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for AI Lab is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.2.0 — 2026-10-30

Explore AI ideas with new Predict, then check cards: make a prediction, reveal the result, and compare the numbers in English or Simplified Chinese.

New
• Try worked examples for attention, training loss, evaluation, LoRA, quantization, diffusion, and more. See why a large attention weight need not mean a large contribution, or why equal test scores can hide regressions.

Improved
• Clearer lesson goals and progress markers help you follow each activity.
• Adjust retrieval sources and limits on every activity to recover evidence left below the cutoff.
• Continue research reading paths at the next unread paper.

Fixed
• Reviewing a finished lesson now keeps Continue focused on your lesson in progress.
• The Lab editor shows the text the model actually reads at the input limit.
• Worked calculations and confidence readouts now agree with the displayed numbers.

### 1.1.0 — 2026-10-23

Explore AI concepts with clearer explanations and new hands-on comparisons, in English and Simplified Chinese.

New
• Search the glossary in either language to find the terms used in your lessons.
• Compare greedy decoding with whole-sequence probabilities, see when a KV cache can reuse a prompt, and discover why lower training loss may leave the top guess unchanged.

Improved
• Clearer activities for image–text matching, retrieval, distillation, LoRA, and mixture of experts.
• More precise probability readouts, sampling limits, and explanations of embedding maps.

Fixed
• Paper-loading failures now show a recovery message.
• Improved VoiceOver labels, localized reader titles, and purchase messages when navigating between screens.

### 1.0 — 2026-10-20

No release notes.

## More apps by 阳 张

- [Dreamy Bubble Sweeper](https://appshunter.io/ios/app/dreamy-bubble-sweeper/id6751500146)
- [HelvetiKit](https://appshunter.io/ios/app/helvetikit/id6752776197)
- [SimplyRead - EBook Reader](https://appshunter.io/ios/app/simplyread-ebook-reader/id6756316775)
- [AI Joke](https://appshunter.io/ios/app/ai-joke/id6758673277)
- [Body Rhythm](https://appshunter.io/ios/app/body-rhythm/id6760245650)
- [Another Me - Life Simulator](https://appshunter.io/ios/app/another-me-life-simulator/id6762003942)

All apps by 阳 张: https://appshunter.io/developer/1832378186

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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 2026-10-31.*