# DoubleDive vs 오답노트AI

The clearest difference is in-app purchases: 오답노트AI at none against DoubleDive's 2. DoubleDive's advantage is update cadence (daily vs every 2 days) and iOS requirement (15.1 vs 18.0). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. DoubleDive sells 2 one-off in-app purchases. 오답노트AI asks for nothing beyond the download.

DoubleDive ships an update daily, 오답노트AI every 2 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | DoubleDive | 오답노트AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/doubledive/id6783585810/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 days |
| Monetization | Freemium | Freemium |
| Size | 82 MB | 33 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LEVELUP AI GROUP LLC](https://appshunter.io/developer/6783585812) | [2Labs](https://appshunter.io/developer/1089573745) |

## What reviewers say

### DoubleDive

[App page](https://appshunter.io/ios/app/doubledive/id6783585810)

This app uses AI to help students understand complex problems by breaking them down step-by-step and engaging them with questions. It supports a wide range of subjects and standardized test preparation, offering personalized learning experiences.

**Highlights:** AI-powered step-by-step problem solving, Interactive questioning for understanding, Supports various subjects and standardized tests, Voice interaction for clarification, Practice problem generation, Personalized learning notebook, Multilingual support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Credits | $4.99 | one-time |
| 50 Credits | $10.99 | one-time |


### 오답노트AI

[App page](https://appshunter.io/ios/app/ai-ai/id6787683753)

This app uses AI to automatically create personalized study notes and practice tests from your incorrect answers. Simply photograph your mistakes, and the AI will transcribe them, organize them by subject, and generate similar problems for further practice. It also offers an AI tutor for instant help and tracks your progress with weekly reports.

**Highlights:** AI-generated study notes from photos, Automatic organization by subject and unit, Personalized practice tests with similar problems, AI tutor for instant help with questions, Spaced repetition for review, Weekly progress reports, Printable PDF test creation

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

**In-app purchases:** none


## Frequently asked questions

### Is DoubleDive free?

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

### Is 오답노트AI free?

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

### Do DoubleDive or 오답노트AI have ads?

Neither DoubleDive nor 오답노트AI shows ads.

### Which is updated more often, DoubleDive or 오답노트AI?

DoubleDive ships an update daily, and 오답노트AI every 2 days. Most recently, DoubleDive was updated on October 7, 2026 and 오답노트AI on October 7, 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.*