UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!

adpersonam - Simple, powerful and affordable Self Serve DSP for Web Agencies and Small Businesses. Grow your business at your own pace with ad:personam Programmatic Advertising Self Serve DSP. No minimum ad spend required.

Userbrain - Easy, fast, and affordable user testing for websites and prototypes.

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userinput.io - Get on-demand feedback for your app, website or idea. Learn how to improve by hearing real opinions.

StackAdapt - Native advertising demand side platform.