Push-to-Talk (PTT) is the proven standard for in-field team communications.

MODULO transforms your team’s smartphones into PTT Walkie-Talkies for professional in-field use.

With the addition of standard Mic/Audio Accessories, MODULO converts your smartphone into a field-grade walkie-talkie:
• No need to unlock your phone or open an app
• MODULO supports top PTT mic/speaker accessories.
• Listen to multiple channels simultaneously

Missed and historical PTT messages are stored for later playback. MODULO also supports texting and sharing media files, documents, and GPS location.

MODULO works on any 3G, 4G, LTE or Wi-Fi network. It is SSL-encrypted for secure communications.

MODULO is FREE for teams of up to TEN (10) users, and you can create UNLIMITED FREE TEAMS. This is 2X the Free Users per team allowed by Zello. Each Team can create an unlimited number of walkie-talkie Channels.

You can conveniently manage your account and teams via our Web Admin Portal by logging in to our website at

‘MODULO Pro’ is also accessible on the website. Pro enables additional features valuable for professional use, e.g. 500+ Users per Channel, full admin, web dispatch--and pricing is 50% vs Zello, Voxer.

What’s New

Version 1.3.1

Fixed and issue with playback and recording while the app is in the background on iOS 12.4.

Ratings and Reviews

4.4 out of 5
21 Ratings

21 Ratings

KeilaET ,

An ACTUAL Walkie Talkie app

Wanted to be able to use my phone as a walkie talkie to quickly communicate with my sisters, other “walkie talkie” apps you have to open up the app to hear it, which is not a walkie talkie at all. You can have your phone locked and you’re still gonna hear a message come through, It’s like a walkie talkie for real.


Yiip, Inc.
50.1 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 17+ for the following:
Unrestricted Web Access
This app may use your location even when it isn't open, which can decrease battery life.
© 2018 YIIP INC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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