5 stars: Works very well. I pay about a pound a month to make sure my app is always on, and it is, so well worth it. It was a lifesaver in Tunsia on a local cheap data SIM. No complaints, money well spent. I was using a free app before, but its worth paying a very small amount (they do have a free option). I combine with Localphone numbers, and its well worth it. Highly recommended, and suggest theh small upgrade, money well spent.
5 stars: Some years ago when I first tested the app I was \
5 stars: I had some problems at the beggining. The problem was that I was using WiFi instead chip internet. The app only works if you activate chip internet. I hope this comment be helpful for users.
5 stars: I've been using this app for a while. In India those who have \
4 stars: I have set Zoiper to connect only with WiFi. It does reliably disconnect when I leave the WiFi. The problem is, usually when I return later or connect to another WiFi, it stays disconnected. Apart from that, it's probably the best VoIP app for Android out there.
3 stars: A pretty decent client that sadly lacks the basic feature of importing/exporting its account settings. You might not care upon first use, but you'll get bitten by that with every new mobile - have to enter all SIP accounts, with all their tech details again, from scratch.
3 stars: Reduced rating. Since recently I get notifications that this app is using microphone in background. Make sure you kill this app when not in use....