HSHTG - Generate, manage, save and edit hashtags just in a few finger tap
Tagsdock - Tag Instagram photos instantly from your iOS keyboard.
hashtags.org - Hashtag is an extensive hashtag research platform for analytics and tracking of hashtags, providing...
Hashtagger - Hashtagger is an exciting platform that allows you to generate popular hashtags for Instagram.
HashtagWiki.com - Hashtag Generator Tool
Friski - Search your Instagram posts