Hashtracking - Powerful tracking for hashtags
Tagsdock - Tag Instagram photos instantly from your iOS keyboard.
Hashtag Suggestions for Instagram - Find the best hashtags for every photo
Hashtagger - Hashtagger is an exciting platform that allows you to generate popular hashtags for Instagram.
Friski - Search your Instagram posts
RiteTag - No idea which hashtags to use? Get instant hashtag suggestions for images and texts on desktop and mobile.