# Abacus Practice

> It generates training problems for Abacus math practice. No ads, no purchases.

Canonical page: [https://chrome-stats.com/d/in.clayfish.abacusProblems](https://chrome-stats.com/d/in.clayfish.abacusProblems)

## Overview

- **ID:** `in.clayfish.abacusProblems`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** ClayFish Technologies
- **Category:** EDUCATION
- **Downloads:** 37,979
- **Rating:** 3.17 / 5 (124 ratings)
- **Version:** 0.4.8
- **Last updated:** 2023-08-08
- **First published:** 2017-07-14
- **Publisher country:** IN
- **Size:** 3.44 MB
- **Data as of:** 2026-09-13
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=in.clayfish.abacusProblems)
- **Website:** [https://clay.fish](https://clay.fish/)
- **Privacy policy:** [https://clay.fish/privacy.html](https://clay.fish/privacy.html)

## Description

Abacus Practice is a dedicated Chrome extension designed to generate customized mathematical problems for kids practicing mental calculation, Vedic math, or Abacus techniques. It offers an ad-free experience with no purchases required.

Users can specify three main inputs: the number of digits per number, the count of numbers in each problem, and whether to include negative numbers. Whether practicing additions or subtractions, the extension dynamically creates relevant problems to engage and train young minds. For example, users can generate addition problems with two-digit numbers or subtraction problems including negative values. Abacus Practice provides an effective and fun platform for children to enhance their math skills.

## Rankings

- #336,058 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `in.clayfish.abacusProblems.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users find Abacus Practice helpful for learning and practicing addition with a simple interface and clear digit sounds. However, many mention the lack of subtraction feature, absence of correct answer display after questions, and poor handling of negative numbers in voice-over. The abacus visualization is criticized for being too small, and some experience crashes and UI issues. Overall, the app is appreciated as a practice tool but needs improvements in features and usability.

### Pros

- App is useful for practicing abacus and helps in learning.
- Simple and straightforward for addition practice.
- App has clear digit pronunciation for positive numbers.
- Users appreciate the effort of the developers and find it enjoyable to use.
- Acts like a game, making practice engaging.

### Cons

- Lacks subtraction functionality which users want included.
- Does not display or provide correct answers after questions, limiting feedback.
- Abacus display beads are too small and hard to see clearly.
- Voice-over does not pronounce negative numbers correctly, missing the minus sign.
- App sometimes crashes at fastest speeds and has UI issues; not user-friendly for digital abacus use.

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Source: [Chrome-Stats](https://chrome-stats.com/d/in.clayfish.abacusProblems)