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Comparison

U vs 단어장 비비디(Vividy)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
U-Class Cast
U
Free
📚 Education
No ratingsView app →
단어장 비비디(Vividy) - 영단어·일본어
단어장 비비디(Vividy)

흐릿한 기억을 생생하게, 가장 효율적인 자동복습 단어장

Free
📚 Education
No ratingsView app →
About

U

Features
Read full description

[주요 기능] 1. 화면올림 - 패드의 화면을 전자칠판으로 보내 학생들이 볼 수 있도록 합니다.

About

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.

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
Read full description

▶ 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

U4 screens
단어장 비비디(Vividy)4 screens

Verdict

The call

The clearest difference is update cadence: 단어장 비비디(Vividy) at weekly against U's every 6 months. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

U ships an update every 6 months, 단어장 비비디(Vividy) weekly. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 7 level
U versus 단어장 비비디(Vividy): the parameters behind the verdict, then further details
ParameterU단어장 비비디(Vividy)
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 6 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.1 — better13.0
Further details — not scored
Size8 MB55 MB
Age rating4+4+
DeveloperMIN HO KIMYechan Joo

In-app purchases

None

U

No in-app purchases

None

단어장 비비디(Vividy)

No in-app purchases

Questions

Is U free?
U is free to download, with no in-app purchases.
Is 단어장 비비디(Vividy) free?
단어장 비비디(Vividy) is free to download, with no in-app purchases.
Do U or 단어장 비비디(Vividy) have ads?
Neither U nor 단어장 비비디(Vividy) shows ads.
Which is updated more often, U or 단어장 비비디(Vividy)?
U ships an update every 6 months, and 단어장 비비디(Vividy) weekly. Most recently, U was updated on October 5, 2026 and 단어장 비비디(Vividy) on October 1, 2026.

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