Preview - Plan your Instagram

The app lets you import all sorts of images and videos from your phone and edit them in various ways. You can add a theme to the image, adjust colors, brightness, saturation, sharpness and even apply multiple filters to your images. It also comes with tools for cropping images, adding stickers, text or drawing on pictures. Once you’ve done that, you can save images inside the app, add a caption and share them on Instagram.
 
It lets you schedule reposts from Instagram and get automatic hashtag suggestions. Moreover, you can create multiple galleries inside the app and drag and drop to arrange images. The app doesn’t require you to login with your Instagram account in order to publish posts.