# AIQ(아이큐) vs OffBook Kit

The clearest difference is in-app purchases: AIQ(아이큐) at none against OffBook Kit's 2. AIQ(아이큐) also leads on update cadence (every 3 days vs every 6 weeks) and device support (3 vs 1). OffBook Kit's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. OffBook Kit sells 2 in-app purchases, starting at $7.99 per month. AIQ(아이큐) asks for nothing beyond the download.

AIQ(아이큐) ships an update every 3 days, OffBook Kit every 6 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | AIQ(아이큐) | OffBook Kit |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 142 MB | 82 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KYOUNGHOON KIM](https://appshunter.io/developer/1887516596) | [Jungwoo Chae](https://appshunter.io/developer/1896510671) |

## What reviewers say

### AIQ(아이큐)

[App page](https://appshunter.io/ios/app/aiq/id6761052225)

This AI-powered tutoring service offers step-by-step solutions to complex problems, visual explanations of concepts, and smart incorrect answer notebooks. It also provides personalized university recommendations and a real-time study room for collaborative learning.

**Highlights:** Step-by-step AI problem solving, Visual concept explanations, Smart incorrect answer notebook, Flashcard quiz generation, Personalized university analysis, Real-time study room

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

**In-app purchases:** none


### OffBook Kit

[App page](https://appshunter.io/ios/app/offbook-kit/id6770186914)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $7.99 | per month |
| Yearly Subscription | $59.99 | per year |


## Frequently asked questions

### Is AIQ(아이큐) free?

AIQ(아이큐) is free to download, with no in-app purchases.

### Is OffBook Kit free?

OffBook Kit is free to download, with in-app purchases available.

### Do AIQ(아이큐) or OffBook Kit have ads?

AIQ(아이큐) shows ads; OffBook Kit does not.

### Which is updated more often, AIQ(아이큐) or OffBook Kit?

AIQ(아이큐) ships an update every 3 days, and OffBook Kit every 6 weeks. Most recently, AIQ(아이큐) was updated on October 28, 2026 and OffBook Kit 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.*