The Build Apps Sketchbook takes an analog approach to improving the design of smartphone apps. Currently crowdfunding on Kickstarter, the notebook is from startup Fusability.
The paper sketchbook contains 120 blank templates of app screens and features a 24x42 dot grid for even column and row spacing. It also has a double coil loop binding so you can lay it completely flat. Handmade in the US, the Build Apps Sketchbook has a minimalist hand-embossed cover.
This product is clearly geared towards designers, but gives them the opportunity to step away from digital screens. In recent years there has been increasing pushback against being constantly screened-in. Analog tools like this one help establish balance for people looking to digitally detox.