Dovetail - Mobile Cloud-Based Dental Software
Jungle Scout - Amazon product research made easy.
Proven By Users - Online Card Sorting, tree testing, first click testing and more.
Inventory Spy - Spy how many products remain on any Amazon Product’s offer listing page.
Hirundin - Helping design, product and UX teams understand users and make decisions based on their needs and goals
AMZScout - AMZScout extension will help you make a decision about picking a niche based on the actual data, not intuition.