결이 주산 vs Note Trainer

결이 주산은 귀여운 강아지 캐릭터 결이와 함께 주산을 배워보는 교육용 앱입니다. 요즘은 실제 주판을 접하기가 쉽지 않습니다. 그래서 핸드폰 속에서 언제든 사용할 수 있는 휴대용 주판을 구현해보았습니다. 8열 주판을 직접 움직이며 제시된 목표 숫자를 만들어보는 방식으로, 숫자의 자리값과 수 감각을 자연스럽게 익힐 수 있습니다. 각 자리의 주판알을 움직이면 현재 값이 바로 표시되어, 숫자가 어떻게 구성되는지 눈으로 확인하며 배울 수 있습니다. 주요 기능 - 8열 주판 조작 - 목표 숫자 만들기 문제 - 현재 값 실시간 표시 - 주판알 색상 변경 - 프로필 사진 설정 - 배경음악 켜기/끄기 - 귀여운 결이 캐릭터와 함께하는 학습 화면 결이 주산은 복잡한 설명보다 직접 만지고 움직이며 배우는 경험에 초점을 맞춘 앱입니다. 아이들은 놀이처럼 주판을 조작하며 숫자와 친해질 수 있고, 가족은 함께 문제를 풀며 즐거운 학습 시간을 만들 수 있습니다. 귀여운 결이와 함께 오늘부터 주산을 시작해보세요. Gyeol Abacus is a portable abacus app featuring Gyeol, a cute puppy character. Today, it is not always easy to find or carry a physical abacus. This app was created after my mother asked for a simple abacus that could be used anytime on a phone. With the 8-column abacus, users can move the beads directly and naturally learn place value and number sense. As the beads move, the current value is displayed in real time, helping users see how each number is formed. Users can also tap the unit number below each column to clear only that column’s beads. For example, after counting the ones place and carrying over to the tens place, users can reset only the ones column back to zero, just like using a real abacus. Main Features - 8-column portable abacus - Real-time current value display - Clear beads by each place value - Practice making target numbers - Change bead colors - Set a profile photo - Turn background music on/off - Learning screen with the cute puppy character Gyeol Gyeol Abacus is designed mainly as a simple digital abacus rather than a game. Children can become familiar with numbers by moving the beads like play, and families can enjoy learning together by making numbers on the abacus. Start learning abacus today with cute Gyeol.

Note Trainer builds the "reading sight" that makes a note's name pop into your head the instant you see it on the staff. Whether you play piano, guitar, ukulele, violin, or sing, how fast you read notation decides how fast you learn and how smoothly you play. When a note appears, name it within 0.5 seconds. This focused flash-quiz drill trains your instant recognition speed (sight-reading), and even a few minutes a day makes your reading noticeably faster. ■ Why train note reading? Counting lines one note at a time breaks your playing and kills momentum. Real fluency comes only when the position and name of a note register the moment you see it. This app trains exactly that automatic reaction speed. ■ Features • Note ID — see a note on the treble or bass clef and name it • Find the note — read the staff and press the same note on a keyboard, linking notation to the keys • Seven key signatures — C through A major and E-flat major. The same position answers differently once a key sits at the left • Mix keys in one session — pick any set and they alternate question to question • Choose the range — turn staff notes and ledger notes on and off separately, so you can drill ledger lines alone • Mix in accidentals — sharps, flats and naturals that cancel or bend the key • Mix both clefs — treble and bass alternate, and switching between them is the part that is actually hard • Do-Re-Mi / CDEFGAB — both note-naming systems, so you practice your way • Time Attack — score as many as you can within the time limit • Survival — one miss and it's over, training focus and accuracy together • Weak-spot focus — records each miss with its position, key and accidental, then replays exactly what was on screen • Stats — reaction time, accuracy and a daily trend over the last 7 days, 30 days or all time, plus your practice streak • Reference sheet — every position in the clefs, range and key you are practising, each one playable so you can hear it ■ Great for • Beginners and self-learners on piano, guitar, ukulele, violin, or voice • Anyone whose playing keeps stalling because reading is slow • Students prepping for music exams, sight-singing, and ear training • Parents helping a child build note-reading basics • Quick practice on a commute or break ■ How to use it 1) Start with treble-clef note ID to build the basics. 2) Once comfortable, turn on ledger notes and mix in the bass clef. 2a) Add key signatures one at a time to feel how a position shifts with the key. 3) Push speed and focus with Time Attack and Survival. 4) Close the gaps with Weak-spot focus on the notes you miss most. No sign-up required and it works offline. All records stay on your device, and can be erased entirely from settings at any time. A few minutes a day is enough — start your sight-reading drills today.