# 수능 스터디 플래너 / 오딘 플래너 vs 비수다

The clearest difference is review sentiment: 수능 스터디 플래너 / 오딘 플래너 at 100% against 비수다's 0%. 수능 스터디 플래너 / 오딘 플래너 also leads on monetization model (free vs free with in-app purchases). 비수다's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.0 vs 26.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

수능 스터디 플래너 / 오딘 플래너 ships an update every 3 weeks, 비수다 every 2 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 수능 스터디 플래너 / 오딘 플래너 | 비수다 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 16 MB | 53 MB |
| Requires iOS | 26.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SEOYEON JO](https://appshunter.io/developer/1889083777) | [Seungwoo Lee](https://appshunter.io/developer/1858119568) |

## What reviewers say

### 수능 스터디 플래너 / 오딘 플래너

[App page](https://appshunter.io/ios/app/id6761356456)

This app acts as an intelligent strategy command center for students preparing for standardized tests. It uses precise data analysis to identify areas for improvement and optimize study efforts for better results.

**Highlights:** Intelligent strategy command center, Data-driven score improvement, Goal grade prediction system, Score variability and university matching analysis, Standardized score national estimation, Constellation achievement system for concept mastery

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

**In-app purchases:** none


### 비수다

[App page](https://appshunter.io/ios/app/3/id6795456254)

This app provides extensive practice for Korean college entrance exam reading comprehension passages. It offers a structured three-read approach, daily curated texts, and spaced repetition for reviewing incorrect answers. AI-powered explanations help users understand complex reasoning.

**Highlights:** Extensive practice with 185 passages and 2,041 questions, Structured three-read training method, Daily curated passages based on target exam date, Spaced repetition for reviewing incorrect answers, AI-powered explanations for difficult questions, Learning reminders to maintain study flow

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

**In-app purchases:** none


## Frequently asked questions

### Is 수능 스터디 플래너 / 오딘 플래너 free?

수능 스터디 플래너 / 오딘 플래너 is free to download, with no in-app purchases.

### Is 비수다 free?

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

### Do 수능 스터디 플래너 / 오딘 플래너 or 비수다 have ads?

Neither 수능 스터디 플래너 / 오딘 플래너 nor 비수다 shows ads.

### Which is updated more often, 수능 스터디 플래너 / 오딘 플래너 or 비수다?

수능 스터디 플래너 / 오딘 플래너 ships an update every 3 weeks, and 비수다 every 2 days. Most recently, 수능 스터디 플래너 / 오딘 플래너 was updated on October 6, 2026 and 비수다 on October 24, 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.*