I am using Fmail for fast mailing. I have downloaded it from
okaapps.com. You can find there a lot of useful apps like Fmail. Almost all of the apps I am using for works are downloaded from that website. Most of all, I like the task manager. I often forget to do something, especially on busy days, so I introduce all I have to do that day to the task manager, and every time I finish a task, I mark it in the app. Also, the unzipping app is working great. It takes a second to unzip a file that has more than three gigabytes.