1. InVision App
The most creative designers and best companies use InVision to design the products you love, Sign up FREE with 1 active prototype.
these tools have the amazing user interface and best user experience.
The best advantage of InVision App is client interactive app, that means the client can put comments on your mockup these is an awesome feature of InVision App, then you can available different media screen dummy also. so it’s looks like real application view.
2. Marvel App
This app also the most commonly used online prototype application. but it has a fantastic feature never seen before, that was Create screens directly in Marvel or add your images from Sketch or Photoshop. You can even sync designs from your cloud storage!