The best thing about day one is its customer support team who always help me with my queries. Their services aren't too expensive either! I have to say this because of their amazing service but also due to the fact that they don’t charge for it. You might think you need more features or something like that but if there's anything i can suggest then it would be try them out first before deciding whether your needs match up with theirs or not. My problem was solved within seconds when I contacted day one through live chat. It has helped me understand how much data each app consumes and what kind of storage space I should allocate for each application. This helps me make better decisions regarding the apps which I use regularly.