Picstagrab is a free Android app developed by SunnarSoft Ltd, falling under the Social & Communication category. The app aims to help users automate the process of featuring a picture or video on Instagram through watermarking and/or reposting with the optional addition of captions. It saves users a lot of time and effort by automatically searching for duplicates on Google and Tineye, before reposting. Picstagrab offers a personal watermark collection that can be managed by adding and removing available watermarks. Users can also reposition, resize, and change the opacity of the watermark. The app allows sharing pictures and videos with optional captions, which can be written at the time of reposting or selected from the user's caption library.

Picstagrab offers automatic insertion of the original username and caption from the picture or video being reposted. It also enables users to store a list of favorite users or hashtags for easy access. Additionally, the app features a recently viewed page for easy access to previously viewed pictures and videos. The developer encourages users to provide feedback on the app and report any issues through the support link or email. It is important to note that users should respect the property rights of any photo downloaded using this application and obtain permission from the owner before using, altering, or republishing any photo or video.