Most iPad drawing apps take a rather old-fashioned approach. They try to mimic paper and pencil, or paint and canvas, and of course they never get it quite right, even with pressure-sensitive styluses and fancy paint engines. Archipad takes a different approach: it recognizes that you’re drawing on a computer screen and embraces that fact, letting you draw to scale, in 3-D and with perfect lines, all my using a finger or stylus.
Draw one item, mark it’s size and everything else can be measured and drawn to scale. You can ask for an isometric graph-paper background for 3-D drawings, and when you’re done drawing you can trace over your original sketch and Archipad will make your straight lines straight and your curved lines curved, automatically.
The name gives away the target market. Archipad is meant to help architects draw plans, but it looks great for anyone who wants to sketch accurate diagrams and schematics.
This seems to me to be a far better way to think of drawing apps than just to mimic a pen and paper. The iPad should help us draw better, not just let us scribble out the same old crap that’s the best we can manage in the analog world. There are a zillion iOS text editors out there to make writing easier and better, so why not drawing apps?
Archipad is free, with a subscription required to unlock the free version’s limits: $3 per quarter or $10 per year.