# Letter Number

> Fun game for improving attention, concentration and problem solving skills

Canonical page: [https://chrome-stats.com/d/com.spaceapps.letternumber](https://chrome-stats.com/d/com.spaceapps.letternumber)

## Overview

- **ID:** `com.spaceapps.letternumber`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Ivan Gast
- **Category:** GAME\_EDUCATIONAL
- **Downloads:** 26
- **Version:** 1.0.1
- **Last updated:** 2026-07-01
- **First published:** 2025-06-08
- **Publisher country:** LT
- **Size:** 22 MB
- **Data as of:** 2026-09-11
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.spaceapps.letternumber)
- **Privacy policy:** [https://spaceapps.info/policy](https://spaceapps.info/policy)

## Description

Unlock Your Focus with Letter Number!<br><br>Letter Number is a fast, challenging game designed for players with sharp minds and top-tier concentration. It may seem simple at first—but mastering it takes serious mental agility!<br><br>How to Play:<br>A number and a letter appear together in a yellow box.<br>Your task? Decide based on the current prompt:<br>- Is the number even or odd?<br>- Is the letter a vowel or a consonant?<br><br>But here’s the twist:<br>The focus keeps switching between numbers and letters—forcing your brain to adapt in real time.<br>And as you give more correct answers:<br>- Time gets shorter<br>- The pace gets faster<br>- The challenge gets tougher!<br><br>Why You’ll Love It:<br>- Builds extreme focus and mental flexibility<br>- Trains both logic and reaction speed<br>- A true test of concentration under pressure<br>- Fun, addictive, and endlessly replayable<br><br>Stick with it, and you’ll uncover hidden powers of focus you never knew you had.<br><br>Thanks for playing and supporting Letter Number — now let’s see how far your mind can go!

## Rankings

- #2,505,000 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.gms.permission.AD_ID`
- `com.spaceapps.letternumber.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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