Topleftsoft LLC is based in Seattle.

We develop computer application software for mobile phones, tablets and computers. This provides users with fun and cognitive challenges as well as educational software to help with study of foreign languages, linguistics and math skills.

In addition, we provide the following services:

1. an electronic bulletin board for mobile devices that allows registered users to access, upload, and download electronic media--mainly text--in order to share data with other users.

2. an application interface and database that allows users to store and share user study data.

3. an application interface that allows users to share and backup user game data to cloud services.