The Main Screen:
Screenshots show the current prototype implementation of the Main Screen, however it should serve only to convey the idea.
The most prominent element of the main screen is the indicator of calories burned vs. calories consumed. To lose (gain) weight users should consume less (more) calories than they burn. The indicator should clearly show the current consumed/burned ratio and where the target is. The current prototype implementation presents this ratio in the form of a spring that compresses under the weight of a fox. The more the user exercises during the day, the lighter the fox becomes and the less compressed the spring is. Reversibly, the more the user eats, the heavier is the fox and the more compressed the spring is. This idea can be used in the final design, but other ideas for the indicator are welcome as well.
The main screen should display the user's long-term target weight loss or target weight itself (on the indicator or not) and may optionally display the current weight.
Optionally and only if it fits into the design, the main screen can also display a historical graph of the user's weight.
The main screen should display the current streak - the number of days the user met his/her goal consecutively. For every 7 consecutive days the user is rewarded with a $1.00 bonus donated by FeedFurry on behalf of the user.
From the main screen users can launch other apps that allow entering food and exercise. This app gets its data only from integration with other apps.
From the main screen users can navigate to charity screen where they can see the info about the charity, the total sum raised for the charity, the amount they donated personally, what that amount consists of, time left until the charity changes and past charities.