Trace and Draw APP
Tutorial
1. Select an image to trace
2. Adjust the image settings, hold to drag, pinch to zoom. Image position can be locked from menu.
3. Use a smart phone holder or place your device on something steady and adjust the composition. You will probably not be able to hold your device steady enough. Still, hold the device with one hand if the device is positioned in way that it might fall down. Be careful. Don't drop your device! You might want to turn vibration off before you start.
It's a bit difficult in beginning but you'll get the hang of it.
Planned improvements
Preferences read/write and layout
Digital zoom