Thanks for your interest in Shapr3D. It looks like you are looking for Shapr3D on Android. Unfortunately, we don’t have an Android version of the app yet.
For the time being, we are focusing all of our efforts on Shapr3D for iPads and macOS. It would take significantly more resources to provide the same quality on Android, which we don’t have at the moment. There are also technical differences we would have to overcome.
Currently, we don’t have an estimate for when we would be able to release the app for Android. There are technical limitations to the Android system and most styluses don’t function with Shapr3D at all.
The best stylus for Shapr3D is the Apple Pencil. Why? Because it is pressure sensitive and has low latency.
The problem is that most styluses are not pressure sensitive at all. And this is one of the main limitations of other styluses. The pressure sensitivity is what makes it possible to do splines.
The Apple Pencil works on all the new iPad generations (Mini 5, Air 3 and iPad 2018 included).
Mouse/trackpad and keyboard support is available for other iPad models or if you don't have an Apple Pencil. Just enable Bluetooth for Shapr3D and your iPad, connect your keyboard with mouse/trackpad, and get to work.
Yes and no. Shapr3D was designed for Apple Pencil. As far as we know, the Apple Pencil is the best stylus on the market.
There is only one comparable stylus for Android, the S Pen designed for the Samsung Galaxy Note5. The S pen is also pressure sensitive, just like the Apple Pencil, but it has twice the latency. The Apple Pencil reportedly has a 20 ms latency, the S Pen used to have 93 ms. With the latest model it has been reduced to 74 ms.
There are other similar pencils, like the one for the Surface Pro 3. That has 87ms latency, while a Wacom Cintiq has 116 ms. With the Apple Pencil that is around 3 frames, with the S Pen that is around 6 frames. But with certain apps, the Apple Pencil has even lower latency. You can get it down to 38 ms (about around 2 frames). If you compare the latencies of the different styluses, it is pretty noticeable. Currently the Apple Pencil seems to be the best stylus on the market.
That being said, we'd like to provide an Android version for our users someday, but unfortunately it won't be in the near future.