PingPongRobot vs 채점비서
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PingPongRobot
Learn robotic engineering through interactive programming. Design motion, timing, and sequences for modular robots. Assemble and control various models using intuitive app features like joystick, dancing, and drawing modes.
- Robotic engineering sequences
- Motion, timing, and loop programming
- Modular robot control
- Joystick, dancing, and drawing modes
- 3D modeling guide
- LED color identification
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Pingpong APP Detail Experience simple robotic engineering sequences by making your own motion, timing, drawing, dancing and loops, which can be controlled with Pingpong App program. Each Pingpong model needs specified links to assemble Pingpong Cubes. Find the link parts on G2, G3, G4, and G6 boxes. Known as a basic module of Pingpong, the CUBE is a single modular robot that contains a controller, gyroscope, accelerometer, proximity sensor, extra sensor interface, stepper motor, battery, and more. 1.How to download Pingpong APP: Download Pingpong APP from App Store (Search APP: Pingpong Robot). 2.ON/OFF & CHARGING INSTRUCTIONS Press and hold the yellow power button more than 2 seconds to turn on and off Pingpong CUBE. (beeping sounds are made) 3.CHARGING 3-1.Prepare the CUBEs. Attach the parts together. 3-2.Attach the charging cable to the round disk part of the Pingpong CUBE. 3-3.The CUBE and the charger are connected by a round magnet. More than 100 CUBEs can be charged at once. 3-4.Charging Time: 6 CUBEs/hour (the charging time depends on the number of CUBEs). 3-5.If the CUBE automatically turns off, starts to lag, or displays no LED sign, this may indicate batteries are low. 4.HOW TO PLAY PINGPONG 4-1. INSTALL THE APP Download Pingpong APP in smart phone or device. (Search APP: Pingpong Robot from App Store). 4-2. LAUNCH THE APP Open Pingpong APP and select CUBE groups. Select a group depending on number of CUBEs (G2, G3, G4, or G6). 4-3. CUBE GROUP After choosing CUBE group, select Pingpong robot model. 4-4. ASSEMBLY Assemble Pingpong model with reference to APP images. Press the 3D modeling guide button for a detailed guide. 4-5. TURN ON After assembling Pingpong model, press the yellow power button more than 2 seconds to turn on all Pingpong CUBEs. 4-6. PAIRING 1ST CUBE Check first CUBE on the app screen. Press the power button from the assembled robot following the order displayed on the app screen. If 1st CUBE is successfully connected to the smartphone, a pairing signal and a beeping sound will be made. 4-7. PAIRING THE OTHERS After pairing first CUBE & APP, press the yellow power button of the remaining CUBES (follow the order from the APP screen). 4-8. PLAY ROBOT Pingpong APP provides various functions: Joystick, Dancing Mode, Drawing Mode and Motion Making. 5.CUBE COLORS After Pingpong robot is successfully connected to smartphone, it is possible to distinguish the order of each CUBE in LED colors, especially in sequences of red, green, blue, cyan, magenta, and yellow. 6.CUBE ICONS Decide on the order and position of the Pingpong CUBE with different icons, including square, triangle, circle, star, and heart.
채점비서
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자녀가 푼 수학 문제집의 답안을 비교하고, 틀린 문제를 다시 살펴보세요. 부모님이 문제집 답안지를 등록하고 자녀의 풀이 페이지를 촬영하면, 답안 근거와 비교해 채점을 돕는 학습 관리 앱입니다. 주요 기능 - 출판사 답안 PDF 찾기와 등록 - 문제집 풀이 사진 촬영 또는 불러오기 - 답안 근거에 기반한 채점 결과 확인 - 인식이 불확실한 문항의 재촬영·확인 안내 - 틀린 문제와 오답 기록 모아보기 - 아이 별명 등록과 학생별 학습 기록 관리 - 선생님과 풀이를 돌아보는 대화 수업 - 기기 간 학습 기록 동기화 현재 수학 과목을 지원합니다. 자동 인식 결과가 불확실한 경우 원본 문제와 답안지를 함께 확인할 수 있도록 안내합니다. 월 구독 안내 베이직: 월 9,900원, 채점 무제한 플러스: 월 14,900원, 채점 무제한, 선생님 월 30분, 웹 이용과 학생 학습 기억 프리미엄: 월 19,900원, 채점 무제한, 선생님 월 60분, 웹 이용과 학생 학습 기억 선생님 수업은 회당 최대 10분이며, 월 제공 시간은 이월되지 않습니다. 플러스 신규 구독 특가 대상자는 첫 1개월 11,900원, 이후 월 14,900원으로 자동 갱신됩니다. 실제 적용 가격과 자격은 App Store 결제 화면에서 확인할 수 있습니다. 구독은 취소하지 않는 한 매월 자동 갱신됩니다. 구독 관리와 취소는 Apple 계정의 구독 설정에서 할 수 있습니다. 출시 무료 이용 혜택만으로 유료 구독이나 자동 결제가 시작되지는 않습니다. 별도로 구매했던 포인트 잔액은 보존됩니다. 앱 계정은 부모님이 사용합니다. 자녀용 계정이나 아동 간 소통 기능은 제공하지 않으며 광고 또는 위치 추적 기능도 없습니다. 이용약관: https://cjbs-backend.fly.dev/terms 개인정보 처리방침: https://cjbs-backend.fly.dev/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: PingPongRobot at none against 채점비서's 1. 채점비서's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. 채점비서 sells 1 one-off in-app purchase. PingPongRobot asks for nothing beyond the download.
PingPongRobot ships an update every 3 weeks, 채점비서 every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | PingPongRobot | 채점비서 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 148 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | RoboRisen | KANGKI SONG |
In-app purchases
PingPongRobot
No in-app purchases
채점비서
- 10 Points$3.99









