Based on our record, Dotgrid seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Everything else is an SVG. I am using a very cool tool and easy to use called DOTGRID for my svg graphics, you can find it on itch.io. Just be careful with the svgs because when importing you cannot scale them as vectors anymore, so a good rule of thumb is to generate svgs ~1.5-2x and use them at .5 scale so you have some wiggle room to scale them up without losing quality. Source: about 2 years ago
POP (Prototyping on Paper) - POP helps you make interactive prototype with ease. If you can draw, you can design apps.
Sketch - Professional digital design for Mac.
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
YouiDraw - Draw and Design Vector Graphics, Logo, Text, icon in the Cloud.