Balsamiq Mockups

Using Balsamiq Mockups feels like you are drawing, but its digital, so you can tweak and rearrange controls easily, and the end result is much cleaner.

Commercial Mac OS X Windows Web

ProtoPie

Compose elaborate interactions and animations easily, and build sensor-aided prototypes without a line of code.

Commercial Mac OS X Windows Android iPhone

Marvel

Marvel is a free prototyping tool that transforms static design files (like Photoshop files, PNG etc) and sketches into interactive, sharable prototypes that look and feel like real apps and websites

Freemium Android iPhone Web Apple Watch tvOS

Pixate

Pixate generates 100% native prototypes, so you can experience your ideas on device as if they’re completely real.

Freemium Mac OS X Windows Android iPhone Web

POP (Prototyping on Paper)

POP helps you make interactive prototype with ease. If you can draw, you can design apps. The workflow is ridiculously simple: 1 Design on Paper 2 Take Pictures 3...

Free Android iPhone Android Tablet iPad

Composite

Automatically connects to your Photoshop document and converts your mockups into interactive prototypes using layer comps to organize your documents into screens....

Commercial

Briefs

Briefs is the essential app design tool built for a professional design workflow. Lifeless mockups don’t tell the entire story, but you don’t have time to build a...

Commercial

App Cooker

Create stunning mockups or wireframes of iPhone and iPad Apps. Export clickable prototypes and share them for free with AppTaster. Master iOS projects!

Commercial iPad

Skala Preview

Skala Preview sends lossless, colour accurate image previews to any iOS device. Previews are pixel perfect. Colours are identical to how the final app or website will...

Commercial iPhone iPad

ProtoTouch

Create, Preview, Share and Install in any iPhone iPod iPad or web browser your mobile prototypes without a single line of code. Add screenshots from Dropbox, using your iPhone library or taking pictures from drawings.

Commercial iPhone

BluePrint (UI design)

Blueprint is an UI design application for iPad and iPhone

Commercial iPhone iPad

PixelServed

PixelServed is the fastest way to preview UI designs created with any creative software (Affinity Designer, Xara, etc.) on an Android device.

Free Mac OS X Windows Android

Prototypr

Prototypr helps you build prototypes rapidly and easily. Import images from Photoshop, link the screens, upload the result onto an iOS device over WiFi and show it off...

Commercial

AppTaster

Share mockups and wireframes with clients on their iPhone or iPad. It revolutionizes the way you get feedback on your projects and improve them.

Free iPhone iPad

LiveView

LiveView is a specialized remote screen viewing application intended as a tool to help designers create graphics for mobile applications, it has also proven to be useful...

Freemium Mac OS X iPhone iPad

Pixl Preview

Pixl Preview lets you view your Photoshop® designs on your Android device in real-time. Get an accurate look and feel of your designs the moment you're making...

Free Android