It's very easy to set up your own sms gateway, if you don't know how this works there is an instructional video for every possible question that can be asked about setting it all out so I'd say its worth watching just in case! The customer support team are brilliant they really do go above & beyond what most companies will ever consider doing themselves which makes me feel like we're getting our money back with them being more expensive (I use these services via my business account too). We have used sendsmssgate as part of building one app but also when working through other clients who required us build their website from scratch using HTML5/CSS3 - sending text messages was essential because some people had no data plans or wifi access where needed etc I have used this service for sending mass text message to mobile numbers. It's very easy to use and is cost effective too. The support team is very responsive and always there to help me out with my queries. I would highly recommend it! Nothing much to dislike about the product. Great service and customer support from send sms gateway. Easy integration to our website, which makes us able to send text messages to multiple contacts at once.