numverify API vs Userefeel

Free Phone Number Validation & Lookup API

NumVerify offers a powerful and simple API for international and national phone number validation. Requests are made using a simple URL structure, and results are delivered in handy JSON format. Provide any phone number in any format, and our API will return an easy-to-integrate response containing validation results, the requested phone number in its national and international format, country, location, carrier and line type information. Validating phone numbers and obtaining this type of information at the time a new user signs up, developers and businesses are able to take informed steps towards the right means of communication with the particular customer, reduce undelivered messages and fight fraudulent and fake users at the same time.

Remote Usability Testing. Quick and Easy User Testing designed by UX Researchers.

Userfeel.com is the usability testing tool that gives you videos of real users speaking their thoughts as they use your website or app. It is designed and developed by Usability Researchers for Usability Researchers but also for newcomers to UX Research and anyone who wants to optimize his website or app.

Location: London, UK