HSHTG - Generate, manage, save and edit hashtags just in a few finger tap
Redditlater - An app that lets you schedule a post to Reddit
HashtagWiki.com - Hashtag Generator Tool
The Reddit Marketing Code - A guide to cracking the Reddit marketing code
Hashtagify.me - Free hashtags search engine, with paid advanced analytics
Serializer.io - A compact news reader for HN, Product Hunt and more