Please note the free service is designed for personal and casual use only. Usually it means uploading / downloading 50 photos, etc. Uploading/downloading of files larger than 50MB is generally not considered as casual use.
A free account is given 200MB download bytes initially. You can get more download bytes by using more DriveHQ features:
Of course, after you have learned our great features, and used our high quality software, we hope you will sign up our premium service. After all, the starting price of $29.99/year is even cheaper than many desktop applications.