Update from Mar 2022: SwiftKey seems to be getting more and more laggy, consumes significant battery (Android asks to kill it) Older review from 2017: Awesome keyboard, enhances productivity Significantly! Best part is support for India languages and transliteration to them! The big drawback is it becomes slow or freezes suddenly sometimes. Shortly after this it inexplicably restarts, which takes significant time. SwiftKey needs to fix the performance / slowness / drag issues that are sporadic.