# Plinko

> Quick mental math training with numpad input for fast calculation practice

Canonical page: [https://chrome-stats.com/d/com.mathblitz.numtrex](https://chrome-stats.com/d/com.mathblitz.numtrex)

## Overview

- **ID:** `com.mathblitz.numtrex`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Solutions 4
- **Category:** EDUCATION
- **Downloads:** 72
- **Version:** 1.0.1
- **Last updated:** 2026-07-05
- **First published:** 2026-05-21
- **Publisher country:** CZ
- **Size:** 19 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.mathblitz.numtrex)
- **Privacy policy:** [https://www.termsfeed.com/live/24ce2457-0719-4180-a337-41fa812651c5](https://www.termsfeed.com/live/24ce2457-0719-4180-a337-41fa812651c5)

## Description

Master your mental math skills with Numtrex, a focused training app designed for rapid calculation practice. Challenge yourself with arithmetic problems and use the built-in numpad for quick input responses.<br><br>Practice addition, subtraction, multiplication, and division through timed exercises. Track your progress with detailed statistics showing accuracy rates and response times. The app adapts to your skill level, gradually increasing difficulty as you improve.<br><br>Features include customizable problem types, adjustable time limits, and comprehensive performance analytics. Choose from different difficulty levels ranging from basic single-digit operations to complex multi-digit calculations.<br><br>All your progress is saved locally on your device with no registration required. The clean, distraction-free interface keeps you focused on improving your mathematical fluency through consistent practice sessions.<br><br>Perfect for students preparing for standardized tests, professionals who need quick calculation skills, or anyone looking to sharpen their mental arithmetic abilities through regular training.

## Rankings

- #2,134,655 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.INTERNET`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.SYSTEM_ALERT_WINDOW`
- `android.permission.VIBRATE`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.mathblitz.numtrex.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.mathblitz.numtrex)