Create an app with 2 buttons. The buttons when clicked will change the background of the screen red or green.
Create an app as shown above. The thumbs up (an image in the library) with the label will be under the bigger number. The thumb is not shown until the button is pressed.
Create an app where there is 2 labels, 1 textfield and a button. The idea is a user will put their age and you will calculate how many years older I am then you. For basic version - assume I am older than you (Im 40).
Notice, the image shown is for advanced, the basic version uses .20 for the tip rate. Create an app that looks like above (but basic version does not need tip rate). The idea is a user will put in their meal price and the app will calculate the tip and total amount.
Create a bmi calculator (see here for formula) that will take in height and weight and find the BMI (Body Mass Index). This is a level of how underweight or overweight someone is. Here is the table of levels. You will have 4 screens. One for the input, one for underweight, healthy weight, overweight (so if bmi is 25+). The screens for underweight, healthy weight, overweight will say their BMI and what they should do (eat more, eat less)
Create a game where there is a button on the screen that every .5 seconds will move to a new random location. The object of the game is to see how many times you can hit it. Your score (how many times you hit it) will appear at the bottom of the screen. After it moves 10 times, the game is over.
Create an app that has 3 cars that move across as above. When the car gets to one side, it will reappear back on left side and go again.
Create a game where it looks like above. An image of a bomb or something with a text input on it. There will be a button below. The idea of the game is the user will have 10 seconds to guess the password. At the bottom there will be a timer showing how much time left. Setup the design then: