# CASify vs AI Notebook

The clearest difference is price: AI Notebook at Free against CASify's $0.99. CASify's advantage is update cadence (every 9 days vs monthly) and chart position (#196 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

AI Notebook is free to download; CASify costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CASify ships an update every 9 days, AI Notebook monthly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CASify | AI Notebook |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ai-notebook-note-taker/id6799981021/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#196** | — |
| Size | 37 MB | 58 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lennart Koch](https://appshunter.io/developer/6776131290) | [Juliet Balogun](https://appshunter.io/developer/6799981023) |

## What reviewers say

### CASify

[App page](https://appshunter.io/ios/app/casify-ti-nspire-cas-tutor/id6776131288)

**Currently charting:** #196 Top Paid · Education (US App Store)

This app provides clear, step-by-step instructions for using a CAS calculator, covering analysis, algebra, statistics, and geometry. It helps students prepare for exams by simplifying complex functions and menu paths. The app works offline and offers a one-time purchase for full, ad-free access.

**Highlights:** Clear function and button instructions, Simplified menu path navigation, Formulas in CAS notation, Favorite function marking, Sorted by grade level, Quick search functionality, Offline operation

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Notebook

[App page](https://appshunter.io/ios/app/ai-notebook-note-taker/id6799981021)

This smart workspace helps you capture, organize, and analyze your ideas and information. Utilize AI-powered tools to summarize content, answer questions, and extract key insights from your notes and documents.

**Highlights:** Create and organize notebooks, Take and manage notes, Summarize information with AI, Ask questions about your materials, Extract important information, Organize notes and documents

**In-app purchases:** none


## Frequently asked questions

### Is CASify free?

CASify costs $0.99, with no in-app purchases.

### Is AI Notebook free?

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

### Do CASify or AI Notebook have ads?

Neither CASify nor AI Notebook shows ads.

### Which is updated more often, CASify or AI Notebook?

CASify ships an update every 9 days, and AI Notebook monthly. Most recently, CASify was updated on October 28, 2026 and AI Notebook on October 31, 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.*