On the OrderUp app, you can change the font size change of the text within the order details (please note that this setting will not change the font size on the product or category list).
1. Open the OrderUp app > enter a customer's name to start a new order
2. Tap on the 'OrderUp' icon 4-5 times very quickly to access the admin mode
3. A popup will appear to give you access to the admin mode
4. Select the employee name and enter the PIN code of the employee
5. The 'settings' (gear) icon will be available on the top right corner
6. Select 'More Settings' > 'Set Font Size' and increase or decrease the number