Pinch-to-Zoom

You can zoom into the graph by moving outwards and inwards with two finders.

Scroll

You can scroll horizontally by swiping left and right with one finger.

Restore position and zoom level

Double tap on the graph to restore default position and zoom level.

Tap on points for more infos

You can tap on points in the graph to get the exact values at this position.

Graph options

There is a menu in the upper right corner of the graph, which lets you choose different options for this graph, such as display a trend line.