Verifyapp : It collects and examine user response in real time, so you can judge where viewer click, how is your design and what they feel. By giving tests, you can get data to view and sort them. It gives you summary also with viewer’s opinion and reactions.
Visual website optimizer : It gives you one A/B testing tool. A/B testing tool creates two different version of your web page to get reviews by viewers that which one is better. The other features are multivariate testing - it find out which combination of changes maximize to convert user’s interest, behavioral targeting - personalized offers to visitor to increase conversion rate, heatmaps - which links or images or buttons are most clicked and which are ignored, usability target - post landing page to get improvement ideas and revenue taking.