Additional price plans required
I would like to buy your service however you do not have a middle price plan for cloud storage at the moment. One can either go for the 100MB, or 25GB cloud storage. There's nothing else in-between.
Is there any chance you would adjust the 5GB email / 100MB cloud to 5GB / 500MB at least? Your competition does this well: https://runbox.com/price-plans/