Crisper is a free app that allows users to create and share their own wallpapers. Users can upload images from their phone, or from Unsplash, an online photo service. Once uploaded, they can adjust the image to their liking using the editing tools available. 

This is a background and wallpaper app, which can be used by your phone. It allows users to upload and edit images to create their own unique and personal phone wallpapers. The images uploaded to the app can be used as the background or lock screen of your phone.

Crisper also allows users to create custom illustrations, which can be used by your phone or website. These illustrations can be used in the same manner as the wallpapers, or as a sticker or logo for your business.