# Phedy vs 문득

The clearest difference is update cadence: 문득 at every 3 days against Phedy's every 3 weeks. Phedy's advantage is iOS requirement (15.0 vs 17.2). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Phedy sells 3 one-off in-app purchases and 문득 sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Phedy ships an update every 3 weeks, 문득 every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Phedy | 문득 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **50.0% of reviews** | 42.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 37 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Room821](https://appshunter.io/developer/1707410548) | [JIHWAN YEOM](https://appshunter.io/developer/6805761199) |

## What reviewers say

### Phedy

[App page](https://appshunter.io/ios/app/phedy/id6760993986)

Transform your study materials into personalized learning tools with AI. Generate quizzes, summary notes, and instant explanations from PDFs, videos, and lecture recordings. Track progress, practice weak areas, and manage grades.

**Highlights:** AI Quiz Generator, AI Cheat Notes, AI Lasso Explanations, Lecture Recording to Text, Wrong Answer Review, Past Exam Study Material Generator, Scientific and GPA Calculator

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1일 이용권 | $2.99 | one-time |
| 14일 이용권 | $6.99 | one-time |
| 30일 이용권 | $9.99 | one-time |


### 문득

[App page](https://appshunter.io/ios/app/ai-pdf/id6805761197)

This app generates AI-powered quizzes from your PDF, PPT, or Notion notes. Review material directly on your phone's lock screen, with spaced repetition for optimal recall. It automatically creates questions, answers, and options, saving you time on flashcard creation.

**Highlights:** AI quiz generation from PDF, PPT, Notion, Lock screen review cards, Spaced repetition for optimal recall, Automatic question, answer, and option creation, Mock exam mode, Customizable review intervals

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 문득 베이직 | $1.99 | per month |
| 크레딧 10개 | $1.99 | one-time |


## Frequently asked questions

### Is Phedy free?

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

### Is 문득 free?

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

### Do Phedy or 문득 have ads?

Neither Phedy nor 문득 shows ads.

### Which is updated more often, Phedy or 문득?

Phedy ships an update every 3 weeks, and 문득 every 3 days. Most recently, Phedy was updated on October 24, 2026 and 문득 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.*