BrainCheck vs 단어장 비비디(Vividy)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BrainCheck
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Make memorization easier with BrainCheck. Create flashcards from sentences. Read, speak, and repeat— memory builds itself. Create flashcards from sentences and words with AI, and focus only on learning. 1. Create and use your own flashcards. 2. Use speaking flashcards on the lock screen. 3. Learn with home screen widgets. 4. Check your cards with speech recognition. 5. Add images and videos to your flashcards. 6. Translate cards instantly into the language you want with the Translate button. 7. Tap unfamiliar words for an instant dictionary lookup. 8. Study offline anytime. 9. Sync automatically across devices. Precision in the essence of language learning BrainCheck is a language learning community platform built around flashcards at its core. Language learning may seem complex, but its essence is simple. Listening is the process of recognizing sound and identifying meaning. Speaking is the process of turning thoughts into language and verifying accuracy. BrainCheck abstracts these two processes into one simple interface. It may look simple on the surface, but underneath, it continuously analyzes the learner’s understanding, memory retention, and rate of forgetting. It carefully adjusts the learning flow so that users can stay in the state where memory works best. The principles we follow 1. Perfection comes from removing, not adding. Rather than adding more features, we keep only what matters. The more complexity we remove, the clearer learning becomes. 2. Learning is a process of arriving. Learning is not about piling up information, but about reaching understanding on your own. We design for insight through intuition and thought. 3. Good explanations are short and show the whole. Brief, yet structured explanations. An experience that helps you understand the whole, not just the parts. Every learning experience in BrainCheck is built on these principles. Recommended for people who want: Simple but deep learning Learning that truly stays in memory Substance over feature overload BrainCheck’s technology-powered learning system Machine learning–based recommendation system By analyzing each learner’s level of understanding and forgetting patterns, BrainCheck presents the next learning material at the most effective time. High-quality text-to-speech (TTS) Not robotic voices, but natural speech closer to real conversation, for a more immersive listening experience. Speech recognition (STT) and speaking evaluation BrainCheck recognizes the learner’s speech and analyzes pronunciation, accuracy, and sentence completeness to provide immediate feedback.
단어장 비비디(Vividy)
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.
- 5-stage word management system
- Spaced repetition review scheduling
- Automatic selection of words for study
- Adaptive learning based on test results
- Efficient vocabulary memorization
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▶ 기억을 만드는 단어장 단어는 5단계로 관리됩니다. New → Blur → Focus → Clear → Vivid 단어는 학습을 통해 점점 더 선명한 기억으로 발전합니다. ▶ 간격 테스트 시스템 Vividy는 각 단어의 테스트 시점을 자동으로 계산합니다. 1일 → 2일 → 5일 → 14일 해당 시점이 되면 테스트가 생성되고 정답 여부에 따라 기억 단계가 조정됩니다. ▶ 오늘 필요한 것만 공부하세요 수많은 단어 중에서 지금 복습해야 할 단어만 자동으로 선택됩니다. 그래서 공부 시간은 줄이고, 학습 효율은 높일 수 있습니다. Vividy와 함께 새로운 방식의 단어 학습을 시작해보세요. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://vividy.co.kr/privacy Tel : 010-2235-3239
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | BrainCheck | 단어장 비비디(Vividy) |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 11 days | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 166 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | BrainCheck | Yechan Joo |
In-app purchases
BrainCheck
- Plus$4.991 Month
- Plus$48.001 Year
단어장 비비디(Vividy)
No in-app purchases








