The puzzle above is the Jobs & Trades pack — what people do. It draws on a list of 35 jobs and trades words, and every level deals a fresh grid from that list, so the pack does not run out after a handful of puzzles. No timer, no signup, nothing to install.
Every word below can turn up in a grid:
A middle setting: grids are a comfortable size, and diagonals come into play once you are a few levels in. Most people settle here.
Drag across the letters to mark a word — press on the first letter and release on the last. Words can run left to right, top to bottom, diagonally, and backwards. Found words are struck through in the list, and your progress on a grid is saved as you go, so you can stop mid-puzzle and pick it up later.