# 갑자기말되는일본어 문법세상 vs Upvy

The clearest difference is price: Upvy at Free against 갑자기말되는일본어 문법세상's $0.99. Upvy also leads on update cadence (daily vs fortnightly) and review sentiment (100% vs 80%). 갑자기말되는일본어 문법세상's advantage is ratings volume (4 vs 1) and iOS requirement (9.0 vs 15.1). On rating, ads, in-app purchases and device support there is nothing between them.

Upvy is free to download; 갑자기말되는일본어 문법세상 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for 갑자기말되는일본어 문법세상 against 5.0 for Upvy. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews are what separate them: 80% of 갑자기말되는일본어 문법세상's written reviews are positive against 100% of Upvy's.

갑자기말되는일본어 문법세상 ships an update fortnightly, Upvy daily. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 갑자기말되는일본어 문법세상 | Upvy |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/id448573128/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/upvy-learn-while-you-scroll/id6756291696/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 80.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Paid | **Free** |
| Size | 81 MB | 55 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [ENSAPIA Corporation](https://appshunter.io/developer/429863543) | [JEONGIL JEONG](https://appshunter.io/developer/1859896442) |

## What reviewers say

### 갑자기말되는일본어 문법세상

[App page](https://appshunter.io/ios/app/id448573128)

This app focuses on building Japanese grammar skills through image association and chunk-based learning, rather than traditional grammar rules. It helps users construct sentences by thinking in chunks, transforming grammar knowledge into practical ability. With over 1600 sentences and a bookmark feature, it caters to all levels from beginner to advanced.

**Highlights:** Image-based learning for intuitive understanding, Chunk-based sentence construction, Transforms grammar knowledge into practical ability, Over 1600 sentences for all levels, Bookmark up to 300 sentences for focused practice, Gradual progression from beginner to advanced levels

**Features:** Vision Pro support

**In-app purchases:** none


### Upvy

[App page](https://appshunter.io/ios/app/upvy-learn-while-you-scroll/id6756291696)

This app transforms passive scrolling into an active learning experience. It uses an AI-powered feed of short, engaging videos across various educational topics, mimicking the addictive nature of entertainment apps.

**Highlights:** AI-powered personalized feed, Educational short videos, Multiple learning categories, Save videos for later, Creator studio for content sharing, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 갑자기말되는일본어 문법세상 free?

갑자기말되는일본어 문법세상 costs $0.99, with no in-app purchases.

### Is Upvy free?

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

### Which has better reviews, 갑자기말되는일본어 문법세상 or Upvy?

갑자기말되는일본어 문법세상 and Upvy are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do 갑자기말되는일본어 문법세상 or Upvy have ads?

Neither 갑자기말되는일본어 문법세상 nor Upvy shows ads.

### Which is updated more often, 갑자기말되는일본어 문법세상 or Upvy?

갑자기말되는일본어 문법세상 ships an update fortnightly, and Upvy daily. Most recently, 갑자기말되는일본어 문법세상 was updated on November 6, 2026 and Upvy on October 30, 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.*