Thank you for playing!
After adding a few more levels and some polishment, I might release it later on mobile. I didn't think about the swipe down gesture to restart, that's a very good idea!
Yes, I used Construct 3. It is an HTML5 & JavaScript based engine but you can easily export games for other platforms. For mobile, I'd export it as a Cordova project, and then using the Cordova CLI I can customize the app for both iOS and Android once.
Alternatively Construct also has some native export options for both iOS and Android. ☺️