# BrainCheck vs 단어장 비비디(Vividy)

The clearest difference is in-app purchases: 단어장 비비디(Vividy) at none against BrainCheck's 2. 단어장 비비디(Vividy) also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. BrainCheck sells 2 in-app purchases, starting at $4.99 per month. 단어장 비비디(Vividy) asks for nothing beyond the download.

BrainCheck ships an update every 11 days, 단어장 비비디(Vividy) weekly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | BrainCheck | 단어장 비비디(Vividy) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 166 MB | 55 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BrainCheck](https://appshunter.io/developer/1509190491) | [Yechan Joo](https://appshunter.io/developer/1891250176) |

## What reviewers say

### BrainCheck

[App page](https://appshunter.io/ios/app/braincheck-flashcards/id6754181689)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus | $4.99 | per month |
| Plus | $48.00 | per year |


### 단어장 비비디(Vividy)

[App page](https://appshunter.io/ios/app/vividy/id6761746672)

This app helps you create and manage vocabulary lists through a 5-stage learning system. It utilizes a spaced repetition algorithm to schedule reviews, ensuring words are revisited before they are forgotten. Focus on studying only the words you need to learn, maximizing efficiency and retention.

**Highlights:** 5-stage word management system, Spaced repetition review scheduling, Automatic selection of words for study, Adaptive learning based on test results, Efficient vocabulary memorization

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

**In-app purchases:** none


## Frequently asked questions

### Is BrainCheck free?

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

### Is 단어장 비비디(Vividy) free?

단어장 비비디(Vividy) is free to download, with no in-app purchases.

### Do BrainCheck or 단어장 비비디(Vividy) have ads?

Neither BrainCheck nor 단어장 비비디(Vividy) shows ads.

### Which is updated more often, BrainCheck or 단어장 비비디(Vividy)?

BrainCheck ships an update every 11 days, and 단어장 비비디(Vividy) weekly. Most recently, BrainCheck was updated on October 6, 2026 and 단어장 비비디(Vividy) on October 16, 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.*