# Study Planner Pro vs 오답노트AI

The clearest difference is update cadence: 오답노트AI at every 2 days against Study Planner Pro's every 2 weeks. Study Planner Pro's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Study Planner Pro sells 1 in-app purchase, starting at $2.99 per month and 오답노트AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Study Planner Pro ships an update every 2 weeks, 오답노트AI every 2 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Study Planner Pro | 오답노트AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 20 MB | 33 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [HyunJu Kim](https://appshunter.io/developer/6780143762) | [2Labs](https://appshunter.io/developer/1089573745) |

## What reviewers say

### Study Planner Pro

[App page](https://appshunter.io/ios/app/study-planner-pro/id6786996270)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Planner Pro - AI 플러스 멤버쉽 | $2.99 | per month |


### 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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 오답노트AI Pro 월간 | $9.99 | per month |
| 오답노트AI Pro 연간 | $79.99 | per year |


## Frequently asked questions

### Is Study Planner Pro free?

Study Planner Pro is free to download, with in-app purchases available.

### Is 오답노트AI free?

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

### Do Study Planner Pro or 오답노트AI have ads?

Neither Study Planner Pro nor 오답노트AI shows ads.

### Which is updated more often, Study Planner Pro or 오답노트AI?

Study Planner Pro ships an update every 2 weeks, and 오답노트AI every 2 days. Most recently, Study Planner Pro was updated on October 25, 2026 and 오답노트AI 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.*