Amavit Abacus vs Sorokun

Amavit is the platform for mental arithmetic teachers. Create groups, run lessons, assign homework, track results, and keep students motivated - all in one place. Free for teachers, with no limits. Signing up takes less than a minute. Your students and their parents join by your invitation, so you stay in control of your class from day one. FOR TEACHERS - Homework, done fast: assign to a whole group or a single student, set a schedule, and let the app check the work automatically. - Progress tracking: see individual and group results in real time, and know exactly who needs help. - Group management: run both group lessons and one-on-one work. - Student motivation: achievements and practice streaks keep learners coming back. - Less admin, more teaching: the routine work is handled for you, so you spend your time on instruction. FOR STUDENTS Children complete the homework you assign and practice freely through focused, playful games built around abacus (soroban) technique: - Addition and subtraction with Small Friends and Big Friends (UCMAS-standard methods) - Anzan (mental calculation), flashcards, and flash tests - Multiplication and division - Achievements and streaks that keep practice rewarding FOR PARENTS Parents follow along with clear, automatic progress updates and always know what their child is working on. SAFE BY DESIGN Amavit is built for a school setting. Children never register themselves and never handle payments - a teacher or parent sets up the account, and children sign in with a simple PIN. There is no advertising and no third-party data sharing. Amavit brings the full mental math loop - teacher to class to homework to practice to parent report - into a single app.

Main Events (総合種目) This section presents events found in abacus competitions and exams—addition/subtraction, multiplication, and division, along with their respective mental calculation counterparts—tailored to your proficiency level. You can enter your answers directly within the app. In "Practice Mode," you receive immediate feedback on whether your answers are correct or incorrect. "Exam Mode" imposes a time limit, and you cannot check your results until you submit your answers. The problems correspond to the grade levels defined by both the Zen-Shu-Ren and the Nisshu-Ren standards. Flash Anzan (フラッシュ暗算) Flash Anzan involves mentally adding up a rapid succession of numbers displayed on the screen. Two modes are available: "Exam Mode," where you challenge yourself based on specific grade levels, and "Free Mode," which allows you to freely customize the number of entries, number of digits, and display speed. Exam Mode supports the grade standards of both the Zenshuren and the Japan Flash Anzan Association. Dictation of Sums (読上算) This training involves mentally adding and subtracting numbers as they are read aloud. Problems are read using VOICEVOX speech synthesis, and you can select the character who reads them. Like Flash Mental Arithmetic, this feature offers both Exam Mode and Free Mode. In Exam Mode, you can take mock exams based on the Zenshuren's standards. In Free Mode, you can customize the number of entries, the digit range, and the reading speed, as well as choose whether to include only addition or both addition and subtraction.