EVO PTT is the evolution of the highly successful QR-PTT Push To Talk android application that is used by a wide range of security and other companies worldwide. Designed to be a substantial upgrade over the old application, we listened to our customers needs and suggestions to improve EVO PTT in key areas and provide new innovative features. It is ideal for companies that need to be in constant communication with their employees (Lone Workers), to give instructions, make comments, report incidents in real time by voice communication, by sending a text message within the app or for responding quick in emergency situations. Its low cost and flexible pricing compared to other competitors like Zello PTT as well as it's ability to rebrand it and adapt it into existing systems makes it the best option in the market, from small businesses to large organizations!

To try it for free enter any Username and "demo" for password.*

Its main features are:

• Very Easy to use
• Lowest cost than the rest PTT applications
• Fast and low latency real time voice communication
• Superior voice compression using CODECS like Skype's SILK and CELT
• Clever mobile data management resulting in lowest data consumption (see comparison with the competition)**
• Works over all network conditions (2G, 3G, 4G or Wifi)
• Auto-reconnect feature when Internet connection is lost
• SOS button function
• Native integration with Android Walkie Talkie devices (F22, F22+, F25 and more)
• Ability to work with screen off in Android Walkie Talkie devices
• Start on boot feature
• Stay Awake feature to keep the screen on
• Remember Login Credentials
• Distinctive sounds for voice, text and SOS
• Dual-pane channel and chat with swipe left and right gestures
• Channel tree view
• Hide or adjust PTT button height in lower resolution screens
• View text comments/description for each user or channel
• Local mute users
• Chat notifications
• Automatic in app secure certificate generation for the server connection
• Opus CODEC support
• Private messaging
• 256 bit encryption
• Compatible with the latest version of Android 8.0 Oreo
• Compatible with the newest Android Studio IDE
• Capacity of 5000 simultaneous users on server and 1000 on each channel
• EVO PTT stays active in background so you can use other apps while listening your users in real time

EVO PTT on Google Play

*Keep in mind that any communication through the demo channel is public.

**For a data consumption comparison of EVO PTT with our competitors click HERE

Our services include plans with customized and private (per customer) servers based on the amount of users as well as the ability to buy the full source (front end and back end) alongside with redistributing and rebranding rights. If you are interested in using EVO PTT or a customized version of it based on your company's needs, feel free to contact us at [email protected] for more information.

Make sure you have the following installed on your linux machine: Android Studio, Oracle java, ant, awk, make, git, the Android SDK and the Android NDK. Then fork or download the original Jumble libraries and execute the commands below:

git submodule update --init --recursive
ndk-build -C libraries/Jumble/src/main/jni/
./gradlew assembleDebug

This is necessary in order to download the libraries that the initial application uses. Keep in mind that throughout the proccess you should use chmod command on the whole project file to give it the right permissions. Finally, download the files of my project and overwrite the old ones. If you encounter any problem throughout the procedure feel free to contact .

Standard FOSS project procedure applies; fork and submit a PR or just email us at [email protected] !

Please use Transifex for translations, not pull requests.