The "original" cloud version is http://deepart.io
As for an easy standalone version, it wouldn't have huge potential, considering the inevitable GPU / computing power requirements.
As for an easy standalone version, it wouldn't have huge potential, considering the inevitable GPU / computing power requirements.
And the GPU version requires amounts of video memory that generally do not exist for anything else than research or GPGPU purposes. With 4GB of VRAM you might get a 920x690 image processed in under 1 hour, using recent optimizations added to the neural-style repo.
So a standalone iOS version seems pretty useless. A standalone Windows version might appeal to people with gaming rigs but without the technical knowledge or determination to install neural-style in its current form. It certainly has potential, just not as huge as the cloud version.