Just downloadeded the app to view a prototype I've been working on but the prototype display on my phone does not fit to my phone's screen display. I have white spaces above and below my prototype while viewing on the app, thought you said it automatically fits to one's phone screen?

It's a good tool for designers. But the accessibility to a project's prototype using internet makes it a bit inconvenient for users. Every time I need to download the project(using internet connection)to show prototype!! Also the transition between screens is too slow.

Overall this tool has great functionality, however the performance really suffers on the Android app compared to the iOS version. If they're able to resolve that, this would easily be a 5 star app.

Just brilliant As a designer for me it helps a lot..

A productive app scoring high on the usability factor.

Usable but could be better If there was a way to toggle on/off the persistent Android nav buttons at the bottom, that'd be great. [Edit] I should elaborate, and say that my problem was with my prototype not fitting to the full width of my screen when I viewed it on this android device (Moto X 2014) but it's fine on iOS. I'm left with black bars each side, and like I said it's because of the persistent Android nav buttons. I have used apps that go full screen, so it should be an option here too.

Lagging I love proto.io, but my main testing device is Android, and the animations and transitions are slow and lag constantly in one place or another :(

So many errors So many errors and bugs make ot very risky to rely on this website to do your project. It might suddenly stop running properly without reason.

Lags, sluggish Refreshes slowly, makes interactive apps sluggish. Much more usable on desktop. Android not so much

Great app with a lot of potential, but unfortunately isn't good enough. If you switch between apps, it becomes unresponsive. And that's just one problem with the app.

Good IOS tool !!!! The ios version works perfectly but the android version is sluggish and constantly crashes to the point of being unusable. Tested on several phones from S6 down to MotoX and all the same. A good tool tho on ios !!!!

Subscription I developed prototype, do not make any changes, I really do not understand why should I pay the whole subscription price to share my app for viewers time to time.

Sometimes slow It can seem boggy, but it may just be that it's not quite ready for the S7 lineup yet.

Crashes Cannot view any projects

Very useful

Needs work While the web interface is amazing, the android app could really use some work, the player itself is quite clunky as it does not automatically fit to your screen. I also still haven't found how to view another screen in the project, which is bad because that should be intuitive. Lastly the icons chosen for some of the actions don't really correspond to the action itself, which can be really confusing. At least you got the material design more or less right, hence 2 stars.

Doesn't work on the nexus 9 The app installs just fine, but there's no option to log in, which makes it useless.

Been using proto for nearly 2 years now. Decided to do a new review as a lot has changed since I started. First off; updates come quite regularly and theres a fairly active community. Also theres quite a few classes available however most of it is quite unnecessary. The ui is very intuitive and you can just dive right in without too much trouble. The two biggest benefits to this tool over others is how easy it is to give to clients as well as design new or redesign existing features. The client can literally download this app and view their app-to-be. Feature design is a breeze. However! There are four drawbacks to proto, which depending on your use case might be deal breakers. It is online only. There is no real conditional logic, currently it is possible to embed some scripts or use the existing framework but its clunky and slow. The Android app is terrible, it would be better to not even let your clients know your building on proto if they will be viewing the mockup on Android. Lastly there is no quick way to get screenshots of every screen on the app, making design documentation a very tedious process. Still though. Very good app to have!

Best Prototyping product This is the best app prototyping product out there. The free version is awesome.

Designer Great for quick UX Design with a easy to use Interface

Not responsive, lagging

Awesome

Always Crashes, can't access App always crashes now when trying to open, before update it was fine. Note 3 on Verizon.

Always crashes The IOS version is a lot smoother, plus recently the android app closes down all the time, making previews impossible 🙅

Wish it had offline playback Overall I like the player. The key missing feature is to allow you to play a local HTML file of your prototype offline via the player. Seems like a simple add and would be super helpful for in-person demos. The player is sometimes slow to load and the formatting occasionally appears wonky. which offline playback may fix. Generally very useful though!

Great prototyping app with a lot of promise It could be even better with smoother transitions and animations and perhaps more ui controls/stencils !!

Time and cost saving. Thank you!

Cost saving!!!

Excited, but needs work I have been waiting for this with great anticipation, glad it's out but my project doesn't quite work same as the Web preview does. Look forward to seeing improvements, I know it's just a v1 Slide-out menu doesn't work same as the web app, fix and I'll give 5 stars!

Soundwave The soundwave team love Proto.io. It was a little annoying how the prototypes looked different on different devices. This app has that sorted. Very cool

Massive improvement This is a massive step up from before where you had to scan the qr code and it opened in a web browser. The app is easy to use, intuitive, it is simple and no fuss. You log in and see your projects, select a project and it loads onto what ever device you have. You just have to be careful the elements in your project are reactive to the different screen sizes when you open the project on an ipad or an iphone.

So happy proto.io made an app!! I havent used it yet but wow, it downloaded so fast!

Finally the missing line that allows you to properly demo your prototype on an Android device!

This completes the entire picture for android proto typing. Excellent job!

Unbelievably Functional Wow, very fluid and professional looking. Sync with your projeçts!

The best tool This app for it all a UX / UI designer looks for.

Don't waste your time! Doesn't even login on Android.

Vow Super super

Yay Nice

Great App