I complained and downgraded my rating to 2 stars after I started seeing ads (even though i paid to not see them), and somehow without a response felt the developer the problem was resolved. I take it as they read my complaint and acted to fix it. For that I say thank you and I have upgraded my rating to the 5 stars rating you deserve. Super super solid app. Highly recommended to open stls

Victor Bovio has written an in my opinion a way better app for viewing STL files and yes you do not get the app closer issue every 5 files you view like you get in STL simple viewer app. It is well worth the 6.99 for Meshman 3D Viewer for STL DXF OBJ DAE 3DS FBX plus you get all of these other file formats you can view and even export to from another. I’m guessing the answer is in the name of this app it’s supposed to be a Simple STL viewer and that is what it does. His Meshman 3D Viewer for STL DXF OBJ DAE 3DS FBX is again way better and you get way more features included in the one price. Thank you Victor for a great app!

The app worked great when it was still loading the adds. I paid for it to support the developer. Now about every 3rd or 4th model I open, it crashes back to the ipad Home Screen and I have to re-launch it. I know it is not a problem with the STL files since I can immediately reopen the file that just crashed the app. Giving it 3 stars since the app works, and works pretty well actually. I‘d love to give it 5, just feeling a little disappointed since it only started crashing after I paid.

Simple and easy to use STL viewer. Does what it says it will. Paid for the add free version. Good app!A couple other features that would be really great would be a simple way to change/move/edit both the light source and materials. Thanks!