Convertize.io - Convertize is a conversion optimization platform based on consumer psychology.
Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
CleverTap Emotion Editor - Write impactful marketing copy with the optimal emotion mix
Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
Freshmarketer - An all-in-one CRO suite.