# 아이시선 vs 문어 CBT

The clearest difference is in-app purchases: 아이시선 at none against 문어 CBT's 4. 문어 CBT's advantage is update cadence (weekly vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 문어 CBT sells 4 one-off in-app purchases. 아이시선 asks for nothing beyond the download.

아이시선 ships an update every 2 weeks, 문어 CBT weekly. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 아이시선 | 문어 CBT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 58 MB | 9 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HoGeun Jo](https://appshunter.io/developer/1795411516) | [mooneolab](https://appshunter.io/developer/1896763449) |

## What reviewers say

### 아이시선

[App page](https://appshunter.io/ios/app/id6760978295)

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

**In-app purchases:** none


### 문어 CBT

[App page](https://appshunter.io/ios/app/cbt/id6770780669)

This app provides practice questions and mock exams for IT certification candidates. It offers a comprehensive learning path from problem-solving to reviewing incorrect answers and tracking progress, all in one place. It supports various IT certifications like SQLD, ADsP, and Information Processing.

**Highlights:** Practice past exam questions, Simulate real CBT exams, Quick OX quizzes for concept review, Automatic incorrect answer notebook, Learning dashboard with progress tracking, Supports SQLD, ADsP, Information Processing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus | $3.99 | one-time |
| Thunder | $4.99 | one-time |
| Pro | $9.99 | one-time |
| Master | $19.99 | one-time |


## Frequently asked questions

### Is 아이시선 free?

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

### Is 문어 CBT free?

문어 CBT is free to download, with in-app purchases available.

### Do 아이시선 or 문어 CBT have ads?

Neither 아이시선 nor 문어 CBT shows ads.

### Which is updated more often, 아이시선 or 문어 CBT?

아이시선 ships an update every 2 weeks, and 문어 CBT weekly. Most recently, 아이시선 was updated on October 5, 2026 and 문어 CBT on October 25, 2026.

---

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