Proto.io vs Principle

Side-by-side comparison of features, reviews, pricing and more

Proto.io

Category: Website Design Tool
Industries: Marketing, Business, Education, Communication

Pricing

Freelancer - $29 per month

Startup - $49 per month

Agency - $99 per month

Corporate - $199 per month

Principle

Category: Website Design Tool
Industries: Marketing, Business, Education, Communication

Pricing

Principle licenses are $129 for each computer you want to use it on

Licenses get all updates for a year, after that you can renew your license to continue getting updates

Licenses can be renewed for $99 per computer

20M+ Downloads
5/5

#1 in Magazines & Newspapers

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Proto.io reviews

Overall, proto.io has been a fantastic tool for designing prototypes. It is simple and efficient to use and provides everything you would need to design great prototypes.

- Tanuj D.

Proto.io is really great for creating interactions and getting feedback on these interactions without having to go and spend hours coding. As with any system, there is a learning curve but it is similar to Sketch and is easy enough to grasp after playing with it for a while

- Sharleen T.

This app is really great! I set up my site in literally just a few minutes. Of course I took some more time to make the site very pretty, but Proto.io is a tool which is very easy to use (no need to ready any instructions) and brings impressive results in a short time.

- Samuel C.

Principle reviews

"Principle is by far my favorite prototyping tool"

- Lucy Guo Designer, Snapchat

"I’m seriously in love with Principle, it’s even easier than I expected."

- Alan Roy Design Consultant

"This tool is amazing, very well done."

- Patrick Wong Designer, Lyft

Pros & cons

Proto.io

Pros
Overall, proto.io has been a fantastic tool for designing prototypes
It is simple and efficient to use and provides everything you would need to design great prototypes
It was in fact recommended by our instructor as well and is a great tool to design prototypes seamlessly and efficiently
Ready made template , useful icon and wonderful design environment made my project really promising."

Cons
The trial is limited to 15days
Also after the project is complete, linking the screens is still a bit of messy and doesn't work as expected in the phone app
The interface is quite difficult for beginners
Forces to use itself: Proto-io is made in such a way that it discourages the user to use any other apps
As a web-based tool, it relies on data import from local files
That import feature is buggy and unstable, resulting in messed up imports from time to time."

Principle

Pros
Testing out interactions as a designer
Doing user testing
The users they feel like they're using a real production app
The integration is seamless and allows me to work quickly and efficiently to take my mock-ups to prototypes.

Cons
It is for Mac users only and not for Windows users
Achieving more complex animations can be tricky if not impossible
It would be great if there would be more straightforward features for these kind of effects.

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Speechify is the #1 audio reader in the world

Get through books, docs, articles, PDFs, email – anything you read – faster.

4.6/5

20M+ downloads

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