KaiOS is an operating system for relatively cheap mobile phones. Simon Tatham's Portable Puzzle Collection is a collection of small puzzle games perfect for mobile phones. This page describes my (Ben Harris's) version of those puzzles to run on KaiOS.
KaiOS versions of some of the puzzles are available from the KaiStore. These versions are tested and have (voluntary) advertisements through KaiAds. So far you can get:
Further puzzles will be in the KaiStore soon.
Development versions of the puzzles are available from Simon's Web site. You can install these on some phones using the KaiOS developer tools, and probably by other means as well. Since they're built automatically, they may or may not actually work. They do not have any advertisements.
Please send bug reports, questions, patches etc regarding the KaiOS port to bjh21@bjh21.me.uk.