Comparison

호시탐탐 박물관 AR vs Revv

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

Head to head
About

호시탐탐 박물관 AR

Features
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◈ 설명 아이들의 사고력과 창의력을 길러주는 증강 현실 애플리케이션[호시탐탐 박물관 AR]은 학습에 대한 호기심을 불러 일으키고, 자신이 직접 꾸민 그림이 3D 입체 영상으로 구현되어, 아이들이 좀 더 재미있고 흥미롭게 활동할 수 있습니다. ◈ 특장점 [호시탐탐 박물관]에서 제공하는 스케치를 활용하여 학습자가 직접 색칠한 그림을 3D 증강 현실로 보여 주는 교육용 애플리케이션입니다. 스케치를 지원 URL(http://cdn.allng.com/imgs/hosimuseum.html)에서 출력하여, 색칠한 다음 앱을 실행시키고 , 핸드폰 화면에 맞추면 3D로 화면이 움직입니다. ◈ 주요기능 - 색칠된 페이지가 테블렛안에서 3D로 살아움직입니다. - 각 페이지마다 신나는 음악재생. - 스크린샷가능 ◈ 주의사항 - 스케치에 자유롭게 색칠해 주세요. 이때 가급적 검은색은 사용하지 말고, 테두리 선까지 깔끔하게 칠하는 것이 좋습니다. - 이 애플리케이션은 프린트된 색칠 페이지가 필요합니다. - 지원 URL : http://cdn.allng.com/imgs/hosimuseum.html - iPhone3, ipodtouch 4에서는 실행이안됨을 유의하여 주세요.

About

Revv

Features
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Struggling to retain what you study? Most flashcard apps just let you type cards by hand and flip through them randomly. Revv-AI Flashcards takes a fundamentally different approach - it analyzes your study material, tracks how well your memory is holding up, and adapts every session to focus on the cards you are actually at risk of forgetting. Revv-AI is built for students, professionals, and lifelong learners who want every minute of study time to count. Import a PDF, let the AI generate a complete flashcard deck, then follow a session designed around your personal recall data. The app monitors your overall recall probability across each deck, grades your retention health from A+ to F, and shows you exactly how many cards you remember, which ones are slipping, and which ones are already forgotten - so you always know where to focus next. KEY FEATURES - AI Deck Generation - Import any PDF and the app extracts content page by page, then generates ready-to-study flashcard decks automatically. - Recall Probability Tracking - Each card is scored with a recall probability. The app separates your cards into Recallable, At Risk, and Forgotten groups so you can prioritize intelligently. - Health Grade System - Your deck receives a letter grade (A+ through F) based on your overall retention, giving you an instant snapshot of how well you know the material. - Adaptive Study Sessions - Sessions are structured around your current recall data, not a random shuffle. Cards you are losing track of come up more often. - Study Insights - After each session, review a personal insights summary covering session duration, cards reviewed, and progress trends over time. - Streak and Calendar Tracking - A built-in study streak and calendar view keep you consistent day after day. - Deck Categories - Organize decks by subject or category so your library stays easy to navigate as it grows. - Revv Pro Subscription - Unlock expanded limits and premium capabilities through an optional in-app subscription. - Sign in with Apple - Create your account securely with a single tap using Sign in with Apple. - Local Data Persistence - Your decks and study history are saved on-device so your progress is always available. HOW IT WORKS Start by importing a PDF of your study material - a textbook chapter, a set of lecture slides, or a reference document. Revv-AI processes each page, extracts the key content, and generates a flashcard deck for you. Once your deck is ready, you can review and organize it before your first study session. During a session, the app presents cards based on your recall data. As you progress through cards, your recall probabilities update in real time. When the session ends, head to the Insights screen for a full breakdown of your performance - how long you studied, your overall recall score, and which areas still need work. Over time, the home screen streak tracker and calendar show your study consistency, helping you build the kind of regular practice that leads to lasting retention. Whether you are preparing for a standardized test, a professional exam, or a university course, Revv-AI keeps your study plan grounded in data rather than guesswork. Your data stays on your device and is tied to your secure Apple account. No complicated setup, no manual card entry required to get started. Download Revv-AI Flashcards today and study with the clarity that only real recall data can give you. Terms of Use: https://jinseok-codelab.com/revv/terms Privacy Policy: https://jinseok-codelab.com/revv/privacy

Screenshots

호시탐탐 박물관 AR2 screens
Revv4 screens

Verdict

The call

The clearest difference is in-app purchases: 호시탐탐 박물관 AR at none against Revv's 2. 호시탐탐 박물관 AR also leads on iOS requirement (9.0 vs 17.0). Revv's advantage is update cadence (every 3 days vs every 14 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Revv sells 2 in-app purchases, starting at $6.99 per month. 호시탐탐 박물관 AR asks for nothing beyond the download.

UpkeepUpdate frequency

호시탐탐 박물관 AR ships an update every 14 months, Revv every 3 days. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 3 level
호시탐탐 박물관 AR versus Revv: the parameters behind the verdict, then further details
Parameter호시탐탐 박물관 ARRevv
PriceFreeFree
Update frequencyEvery 14 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size254 MB42 MB
Age rating4+12+
DeveloperKYOWON CO.,LTDJINSEOK OH

In-app purchases

None

호시탐탐 박물관 AR

No in-app purchases

2 purchases

Revv

Subscriptions2
  • Revv Pro Monthly7 Days trial$6.991 Month
  • Revv Pro Yearly7 Days trial$39.991 Year

Questions

Is 호시탐탐 박물관 AR free?
호시탐탐 박물관 AR is free to download, with no in-app purchases.
Is Revv free?
Revv is free to download, with in-app purchases available.
Do 호시탐탐 박물관 AR or Revv have ads?
Neither 호시탐탐 박물관 AR nor Revv shows ads.
Which is updated more often, 호시탐탐 박물관 AR or Revv?
호시탐탐 박물관 AR ships an update every 14 months, and Revv every 3 days. Most recently, 호시탐탐 박물관 AR was updated on October 6, 2026 and Revv on October 2, 2026.

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