# Stdy AI vs NOTICAU

The clearest difference is in-app purchases: NOTICAU at none against Stdy AI's 4. NOTICAU also leads on update cadence (every 3 days vs every 11 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stdy AI sells 4 in-app purchases, starting at $6.99 per month. NOTICAU asks for nothing beyond the download.

Stdy AI ships an update every 11 days, NOTICAU every 3 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Stdy AI | NOTICAU |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 39 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Trend Vibe](https://appshunter.io/developer/1813152500) | [TAEHYUN JOO](https://appshunter.io/developer/1884783827) |

## What reviewers say

### Stdy AI

[App page](https://appshunter.io/ios/app/stdy-ai-lecture-note-taker/id6760990243)

This AI-powered learning app helps students efficiently organize lecture materials, notes, and recordings. It summarizes complex documents, generates practice quizzes, and offers AI chat support for quick clarification. Features include automatic note-taking from lectures, flashcards, and memorization tools for effective exam preparation.

**Highlights:** AI lecture material summarization, Automatic lecture note-taking, Practice exam generation, Exam paper analysis and problem generation, Flashcard creation for repetition, Memorization notebook, AI chat for study questions, 90+ language support for lecture recording

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study AI Pro Monthly | $6.99 | per month |
| 스터디 AI Pro | $34.99 | per 6 months |
| Stdy AI Pro Yearly (Promotion) | $44.99 | per year |
| 스터디 AI Pro | $59.99 | per year |


### NOTICAU

[App page](https://appshunter.io/ios/app/noticau/id6777587838)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Stdy AI free?

Stdy AI is free to download, with in-app purchases available.

### Is NOTICAU free?

NOTICAU is free to download, with no in-app purchases.

### Do Stdy AI or NOTICAU have ads?

Neither Stdy AI nor NOTICAU shows ads.

### Which is updated more often, Stdy AI or NOTICAU?

Stdy AI ships an update every 11 days, and NOTICAU every 3 days. Most recently, Stdy AI was updated on October 31, 2026 and NOTICAU on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*