What to use in place of Message + on my iphone when connected to only wifi

[Vasilios]

My Message + plus app is saying "Unable to generate  PIN" .  I don't get messages from Android users on my Apple IOS main app if I am only connected to WIFI. I will be travelling abroad where my Verizon cell signal will be unavailable and only wifi available. I used to get those message via the Message+ app, what do I do now?

[vzw_customer_support · Accepted solution]

Hello, Vasilios. Wishing you safe travels. Would it be an option to use a third party application since Messaging Plus has gone away? For example, could you try What's App? 

-Natasha