Email, Messaging, & Video Calls Texting & Messaging VoIP for Mobile Phones How To Cut Down Your Mobile Communication Costs Share Pin Email Print Texting & Messaging Email Texting & Messaging Video Calls By Nadeem Unuth Freelance Contributor Nadeem Unuth is a former freelance contributor to Lifewire who specializes in information and communication technology with a focus on VoIP. our editorial process LinkedIn Nadeem Unuth Updated December 09, 2019 If you intend to considerably cut down the cost of your mobile calls, here is a list of VoIP services that can lower your mobile communication costs to the cheapest it can be so far. You only have to select the right service tailored to your needs, mobile phone type and model, connectivity, etc. 01 of 05 Truphone What We Like Requires an internet connection. Cheap international rates. What We Don't Like Supports high-end phones. No support for 3G and other connections; Wi-Fi only. By installing the Truphone software on your mobile phone, you can have your mobile phones routed through the internet, and make free calls to other Truphone users. Calls to plain mobile and landline phones are cheap. Truphone allows you to make calls through Wi-Fi hotspots and your GSM network, which means you can use it really anywhere. It focuses mainly on high-end phone models like the iPhone, BlackBerry devices, Nokia E and N series etc. 02 of 05 Vopium What We Like Automatically detects the cheapest way to make calls. Unlimited calling plans are a great value if you make international calls daily. What We Don't Like Pricing information isn't listed; must ask for a quote. Better for professional use than personal use. Vopium is a mobile VoIP service that offers cheap international calls through GSM and VoIP, without necessarily having a data plan (GPRS, 3G etc.) or Wi-Fi connection. If you do have any of the latter, you can make free calls to other users using the same networks. Vopium also offers new users 30 minutes free calls and 100 free SMS for trial. 03 of 05 VoIP Services For The iPhone Here is a list of VoIP services that work on Apple's iPhone. 04 of 05 Skype What We Like Free one-on-one and group calls. Impressive real-time translator tool. What We Don't Like Can only receive, not send, text messages. SkypePhone is no longer in production. You might be asking why Skype does not come first of this list, with its hundreds of millions of users. While Skype shines in PC-to-PC communication (for how long more?), its presence in the mobile arena only fills a gap in its services. Skype has softphones for Nokia Internet Tablet, Windows Mobile devices and WiFi phones only. Recently, Skype has launched its own mobile phone, called the SkypePhone, which carries all Skype functionalities and services. 05 of 05 Rebtel What We Like Mobile apps for Android, iOS, and BlackBerry. No monthly fees. What We Don't Like No phone or live chat customer service. Global unlimited plan is limited to 52 countries. Rebtel gives international numbers for your local contacts, and therefore allows you to make international calls at low rates. What you pay is the local GSM fee plus a small fee for Rebtel. You have to type your contact's international number and Rebtel will create a local number for the area you are in, for you to call them.