Does the Zello app, which allows users to talk via a push-to-talk (or "walkie-talkie") feature, work without a cellular signal? Not unless the device has an internet connection. According to a Zello sales representative, if there is no cellular signal, the phone must have access to Wi-Fi for the app to work.
Great storm time back up communication app. It turns your cell phone into a push to talk walkie talkie when you do not have a cell signal for calls. You need to go ahead and download app now and add your friends and family incase you lose signal later.
This is what the post looked like on Facebook on August 30, 2021:
(Source: Facebook screenshot taken on Mon Aug 30 15:26:29 2021 UTC)
In a phone call with Lead Stories on August 30, 2021, a Zello sales representative said:
The device does need an internet connection of some type, not necessarily cellular.
Just to clarify, Zello REQUIRES Internet access via Wi-Fi or a cellular data network in order to work. For more info, go to https://t.co/Bh2i78HseZ or our FB page-- Zello (@Zello) September 11, 2018
(Source: Twitter screenshot taken on Mon Aug 30 15:38:41 2021 UTC)
The free version of Zello was downloaded and used as an effective communication app during natural disasters such as Hurricane Harvey in 2017, according to the company. The Facebook post making the incomplete claim was posted shortly before Hurricane Ida made landfall in Louisiana on August 29, 2021.