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Abacus Lesson -ADD and SUB-

Abacus Lesson -ADD and SUB-

ADD and SUB using Abacus

837 ratings
60 reviews
With Ads
๐Ÿ“š Education
๐Ÿ”ง Utilities
Free
In-App PurchasesWith Ads

Details

Released
August 9, 2020
Updated
January 16, 2024

Features

Developer

Hirokazu Komatsu
โœจPromote your app โœจ
Abacus Lesson -ADD and SUB- screenshot #1 for iPhone
Abacus Lesson -ADD and SUB- screenshot #2 for iPhone
Abacus Lesson -ADD and SUB- screenshot #3 for iPhone
iphone
ipad
๐Ÿงพ$1.99 - $8.99
In-App Purchaseโ†˜๏ธŽ
๐Ÿ“ŒReady
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๐Ÿ“5+ tags
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โ“5 answered
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๐Ÿ“ฆw/o updates
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About

Learn addition and subtraction using a virtual abacus, also known as a Soroban. This app helps you develop mental calculation skills, enabling you to perform calculations without physical tools.

โœ“Learn addition
โœ“Learn subtraction
โœ“Virtual abacus (Soroban)
โœ“Develop mental calculation skills
โœ“Perform calculations without physical tools
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What users say about Abacus Lesson

Reviews of Abacus Lesson are mostly positive: the Education app is rated 4.9/5 from 837 App Store ratings. What users like most: beginner-friendly and easy to use, quick to learn basic concepts. Top complaints: poor English translation quality, lessons sometimes hard to read. Summarized from real user reviews.

Positive things

  • ๐Ÿ‘Beginner-friendly and easy to use
  • ๐Ÿš€Quick to learn basic concepts
  • ๐Ÿ“šClear and simple explanations
  • ๐ŸŽฏEffective teaching methodology
  • ๐Ÿ’ฐFree with no ads
  • ๐ŸŽฎFun and engaging learning experience
  • ๐Ÿ”ŠGood audio/visual feedback
  • ๐Ÿ“ฑWorks well on mobile devices
  • โœจHelps with arithmetic skills

Negative things

  • ๐ŸŒPoor English translation quality
  • ๐Ÿ“–Lessons sometimes hard to read
  • โŒCannot skip levels
  • โšกDifficulty progression too steep
  • ๐Ÿ›App closes accidentally on iPhone when swiping
  • ๐Ÿ“Confusing problem presentation format
  • ๐Ÿ”คMisspelled words in instructions
  • ๐ŸŽ“Limited long-term learning value
See all reviews

What's New in Abacus Lesson

3.1.9

January 16, 2024

updated library.

3

Subscriptions & In-App Purchases

$1.99

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User reviews

Most RecentHighest RatedLowest Rated

From the spelling errors and the way of writing, I can tell this was written by a kid, and great job

Keep improving, I support you.
Try to make it more GUI interfaced, rather than always pressing buttons, and not always the sound on the abacus.
SPSundar Pichhai

Fun

Very sequential learning. Fun to get correct answers. Motivating to pass a level.
GGeomommaj

Helped me so much!!

It was so fun and easy!!
๐“๐“๐“ต๐“ธ๐“ฒ

็ฎ—็›คใ‚’ๅ‹‰ๅผทใงใใ‚‹ๆฅฝใ—ใ•๏ผ

็งใ‚‚ๅฐๅญฆๆ กใฎ้ ƒใ€ๅ‹้”ใฎๅคšใใŒ็ฎ—็›คๅกพใซ้€šใฃใฆใ„ใฆใ€็งใฏ่‹ฆๆ‰‹ใ ใฃใŸใฎใ‹ไธ€ๅ›ž่ถณใ‚’่ธใฟๅ…ฅใ‚ŒใŸใจใ“ใ‚ใง้›ฐๅ›ฒๆฐ—ใซๆ€ฏใˆใฆ้€šใˆใชใ‹ใฃใŸ่ฆšใˆใŒใ‚ใ‚Šใพใ™ใ€‚
ใ ใ‹ใ‚‰็ฎ—็›คใฏใชใœใ‹ๅซŒใ„ใชใ‚‚ใฎใซใ€‚
ใงใ‚‚ใ€ใ“ใฎ็”Ÿๆถฏใง็ฎ—็›คใŒใงใใ‚‹ใฎใฏใ‚‚ใ—ใ‹ใ—ใŸใ‚‰็ด ๆ™ดใ‚‰ใ—ใ„ใ“ใจใชใ‚“ใ˜ใ‚ƒใชใ„ใ‹ใจๆ€ใ„ใ€ใ‚ขใƒ—ใƒชใ‚’ๆŽขใ—ใฆใฟใพใ—ใŸใŒใพใ•ใ‹ใ€ใ“ใ‚“ใชใซใ‚ใ‹ใ‚Šใ‚„ใ™ใๆฅฝใ—ใ„ใ‚‚ใฎใ‚’่ฆ‹ใคใ‘ใ‚‰ใ‚Œใ‚‹ใจใฏๆ€ใ„ใพใ›ใ‚“ใงใ—ใŸใ€‚
ใ“ใ‚Œใชใ‚‰ใ„ใคใงใ‚‚ใฉใ“ใงใ‚‚ๅญฆในใพใ™ใ€‚
ใ‚ใ‚ŠใŒใจใ†ใ”ใ–ใ„ใพใ™๏ผ
ใซใซใ‚ƒใ‚“ใฆใ‚นใƒ†ใ‚ญ

Abacus lesson is the best for learning Abacus

Thanks to this game Iโ€™m now into abacus!
Cc0ldrbx
See 55 more reviews

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User experience

๐Ÿž

Reported Bugs

4 issues

Accidental app closure on iPhone during bead swiping

Bug

Error in lesson 3 addition summary

Bug

Sloppy English translation causing confusion

Bug

Lessons difficult to read visually

Bug
โœจ

Requested Features

6 requests

Add Chinese Abacus (Suanpan) option

Feature

Landscape view support

Feature

Level skip functionality

Feature

Better English translation/editing

Feature

Clearer problem presentation with equation format

Feature

Improved lesson readability

Feature

FAQ

What does the Abacus Lesson app do?

This app teaches users how to perform addition and subtraction using a virtual abacus, also known as a Soroban. It focuses on developing mental calculation abilities so users can compute numbers without needing physical tools.

What are the key features of this abacus app?

The app allows you to learn addition and subtraction with a virtual abacus. A key benefit is the development of mental calculation skills, enabling you to perform calculations in your mind without relying on physical aids like a smartphone calculator.

How does using an abacus help with calculations?

The abacus, or Soroban, is a simple calculator that requires manual operation. Its simplicity allows users to internalize the calculation process, leading to the development of strong mental math skills. This enables calculations of several digits without any physical tools.

Is this app free to use?

The application is free to download and use, but it does include in-app purchases and advertisements. These may offer additional features or an ad-free experience.

Who is this app designed for?

This app is for anyone who wants to learn or improve their arithmetic skills, particularly through the method of using an abacus. It's ideal for those seeking to enhance their mental calculation capabilities.