Let's Draw is a free drawing app available on Android that offers a simple and nimble operation. It includes 45 colors, 5 types of pen thickness, and text input. The app is perfect for anyone looking for a simple drawing app, as it does not have complicated settings. You can enjoy drawing and scribbling on photos, as well as sharing edited images with your friends through email or Twitter.

The app also features an undo function, allows you to read photos from the gallery, and you can save edited images to the gallery. The RGB palette is a new addition to the app. The free version includes advertisements, but they are not too intrusive. The paid version removes the advertisements. Overall, Let's Draw is a user-friendly app that offers a good range of features for those looking to draw or scribble on their photos.