Deliverability 
If your app is intended to reach a global audience, you might face implementation problems with the generic APIs -- transmissions involving countries with specific SMS requirements or formats can have disproportionately high performance problems, including blockages or failures.
We came to this conclusion after spending over three months testing several generic messaging APIs like Twilio, Nexmo, and others, specifically looking at performance issues that would be of great concern to app developers like yourself.
Our testing was deeply focused on reception rates for transmissions of SMS verification to different types of Android devices. We compiled data over six months of testing, and what we present you with here serves -- showing you the weaknesses of different providers, in certain geographies across several seasons.
The infographic below shows how the generic SMS gateways compare in terms of deliverability, latency and reliability within different countries and among available carriers.
Note: While one provider may appear to be strong in a certain area, please know that this data changes often. Busy seasons, like July 4, Black Friday, and the like, can make a carrier in a particular area no longer a consistent gateway. This is why our Smart Routing algorithm chooses the best carrier at the exact moment of sending -- what’s great at one time may be burdened beyond capacity the next time an SMS is sent in the same region.
If your app is intended to reach a global audience, you might face implementation problems with the generic APIs -- transmissions involving countries with specific SMS requirements or formats can have disproportionately high performance problems, including blockages or failures.
We came to this conclusion after spending over three months testing several generic messaging APIs like Twilio, Nexmo, and others, specifically looking at performance issues that would be of great concern to app developers like yourself.
Our testing was deeply focused on reception rates for transmissions of SMS verification to different types of Android devices. We compiled data over six months of testing, and what we present you with here serves -- showing you the weaknesses of different providers, in certain geographies across several seasons.
The infographic below shows how the generic SMS gateways compare in terms of deliverability, latency and reliability within different countries and among available carriers.
Note: While one provider may appear to be strong in a certain area, please know that this data changes often. Busy seasons, like July 4, Black Friday, and the like, can make a carrier in a particular area no longer a consistent gateway. This is why our Smart Routing algorithm chooses the best carrier at the exact moment of sending -- what’s great at one time may be burdened beyond capacity the next time an SMS is sent in the same region.
