Thanks for the comment and your concerns are very valid. We're fully confident in keeping the service up/free and are currently deployed in Amazon's EC2/S3 with

Thanks for the comment and your concerns are very valid. We're fully confident in keeping the service up/free and are currently deployed in Amazon's EC2/S3 with many optimizations for cost saving. We're also seed-funded and that gives us room to go further without monetization for longer period of time while we work the features/bugs out :) Thanks again!