TinEye - Reverse Image Search to help find an image's source, duplicates or altered versions.
Jetpack App - The fastest way to copy your hashtags for Instagram
GImageReader - gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.
Hashtag Suggestions for Instagram - Find the best hashtags for every photo
Microsoft Lens - Microsoft Lens (formerly known as Office Lens) is an all-in-one application designed for Windows, Android, and Apple devices, allowing you to capture important information from signs, PDFs, whiteboards, and more to add.
Hashtracking - Powerful tracking for hashtags