You need to add the app as a keyboard.

How to make keys bigger on iphone. Download and install the big keyboard. If you do make a mistake when typing on the keyboard of an iphone you can make. Tap add new keyboard then choose a keyboard from the list.

Go to the settings app on your iphone after turning it on. If you have difficulty using an external keyboard, you can adjust the settings. Then, tap on the + sign next to keyboard size and the size of the keyboard will be increased.

On an iphone, the size of the keys is limited, especially if you’re using the app in portrait mode. Go to settings > accessibility > keyboards, then tap any. Change how the keys respond on an external keyboard.

However, you're limited to about 9 or 10 keys on which to make a melody. Slide your finger over the switch so. This method will work on:

Download and install big keys. Next, tap on the + (plus) sign next to keyboard size and the size of the keyboard will increase. Tap edit drag next to a keyboard to a new place in the list then tap done.

Tap the settings icon on your screen, and tap the general tab. Slide it from off to on to activate the zoom feature. Although the native keyboard settings on ios doesn’t let you make it bigger, you can tweak ios’ display settings to enlarge the size of.