From the company website:
We have been creating games for handheld devices for over 9 years, making us one of the oldest handheld software companies in the business. We have a proven track record of writing high quality software that runs and plays well on handhelds. Astraware has one of the most stringent quality assurance processes in the handheld software industry, meaning that every new or updated product available on this site has been tested on a range of smartphone devices to check that they run correctly. We have a team of external volunteer beta testers, who are as passionate about our games as we are, and they try out new software 'in the field' on their handhelds alongside the other real-life software and data they keep.
We test our games on a wide range of smartphones to ensure you get the best experience possible when you try our games.