I've been using Fuelio for a few days now and, on the whole, I think its a great app. It's definitely my prefered fuel tracking app out of all of those that I have tried so far. I do, however, have a few suggestions based on what I've seen and done so far.
1) I love the huge range of statistics that are available but sometimes I feel like I am getting lost in a sea of data. Having the ability to customize what is displayed on the two statistics pages (and the report) would represent a big leap forward in ease of use and allow people to go straight to the numbers they are interested in without getting distracted by other fields.
2) On a similar note, in the report, it would also be fantastic to have the option of breaking down the total "other costs" into its subcategories, and to have a field for "average cost per day" in addition to the "average cost per mile" one that is there already.
3) If a "fuel tank capacity" option was to be added to the car information screen, then each fill-up volume could also be expressed in terms of % of full tank. I would find this quite interesting.
4) It took me quite a while to find the reminders list. It might make more sense to have a distinct "Reminder log" on the main menu rather than (or in addition to) having the small circle in the top corner of the other pages.
Customer support service by UserEcho