The best way to make text larger is to use the text size setting that is built into iPhone and iPad. Simple Stocks follows this setting automatically, and it also makes the text larger in your other apps and across your device.
Apple explains how to do this here: Change the font size on your iPhone and iPad.
If you only want the text to be larger in Simple Stocks, and not in your other apps, you can change it in the app instead:
1. Tap on the cog icon in the top right of the screen ans select 'Open Settings' at the bottom of the menu2. In the 'Interface' section, switch on 'Larger Text'
3. A slider appears below it. Drag the slider to the right to make the text bigger, or to the left to make it smaller.
3. In the 'Interface' section, switch on 'Larger Text'
4. A slider appears below it. Drag the slider to the right to make the text bigger, or to the left to make it smaller.
5. Quit Simple Stocks and open it again for the new size to be used throughout the app.
The text size you choose is saved on that device only, so you can use a different size on your iPhone and your Mac.
Very large text can make some pages feel crowded. If something no longer fits well, move the slider one step to the left.