SVG Artista is described as 'spin-off project of Animista.net. A lot of Animista users have been asking us about how we made the Animista splash screen animation. Therefore we decided to develop a tool that would simplify the process of creating such an animation' and is an website in the Photos & Graphics category. There are four alternatives to SVG Artista, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, SaaS, Windows and Linux. The best alternative is Rive. It's not free, so if you're looking for a free alternative, you could try SVG Circus or SVG Flipbook.
SVG Flipbook runs next to your SVG editor and lets you animate your creation. Each layer in your SVG becomes one frame. You can use whatever SVG editor you like. Inkscape and Illustrator both work great.