Blue Box for Android - Download Free [Latest Version + MOD] 2025

Whats new in Blue Box v5.1.3

6 things about Blue Box

1. Blue Box is useful for entering numbers into touch tone operated systems such as an answering machine passcode or a dial-up service that requires the entering of several touch tones to navigate a menu system.
2. The recording feature works with all tones, including the dial tone, busy signal, ring back tone, 2600Hz and coins and trunk control tones.
3. Blue Box is utility for encoding and decoding DTMF (Dual-Tone Multi-Frequency) or Touch Tone signals.
4. Additional tones include the Dial Tone, Ring Back Tone, Busy Signal and 2600Hz.
5. Use Red Box mode to play coin tone sequences, including 5¢, 10¢ and 25¢ for the US system and 10p and 50p for European systems.
6. Blue Box can not play tones into the iPhone phone feature while in a call.

Release date: 2023-09-21
Current version: 5.1.3
File size: 10.06 MB
Developer: Sunshine Valley Systems

How to setup Blue Box APK:

APK (Android Package Kit) files are the raw files of an Android app. Learn how to install blue-box.apk file on your phone in 4 Simple Steps:

Download the blue-box.apk to your device using any of the download mirrors.
Allow 3rd Party (non playstore) apps on your device: Go to Menu » Settings » Security » . Click "Unknown Sources". You will be prompted to allow your browser or file manager to install APKs.
Locate the blue-box.apk file and click to Install: Read all on-screen prompts and click "Yes" or "No" accordingly.
After installation, the Blue Box app will appear on the home screen of your device.

Is Blue Box APK Safe?

Yes. We provide some of the safest Apk download mirrors for getting the Blue Box apk.

Download Mirrors

Mirrors: Download for Android

On iTunes: $2.99 On iTunes

Reviews

Does not work for me

Unfortunately this app does not work for me. After switching from dial to listen back to dial the output seems to be muted. Need to restart the app to regain output again. Listen mode only picks up noise, but no actual tones. Tried to adjust settings, but it got only worse. Installed a different app to decode tones which worked out of the box.

~ By Gwen4711

All the tones you need

Idk why this didn’t work at first. Without updating it now works. Sorry for the poor initial review!

~ By joeblow116611

For those who know what this is

I'm really happy and very surprised that this exists. Works very well. Only phone phreaks know what this is really used for, or what it used to be able to be used for.

~ By nerdy1351

Perfect

I've had this app for years now. Working in the telecom industry it has proven highly valuable.

~ By Maphusio

Listenback is not working

Either it is incomparable with the Android 5, or iOS 6, but the decoding feature, which is the only reason I bought it (who needs to listen to dial tones?) is not working. I read all the trouble shooting methods, but it is obviously a version issue. Will be slightly less of a waste of money if they ever update it. Still don't know if its worth 3 bucks just for a decoder, but I needed one for work, and had to have it. What a let down.

~ By JakeReindl