I want to build an app that lets the user have a few different ways of running through some or all of the jōyō kanji.
I have a few web pages with variant views ... the simplest is at http://www.aule-browser.com/kanji/kanjidic2-joyo-indexed-single-curl.html - but it requires the Curl Surge RTE browser plugin from www.curl.com
For Android and iOS I will generate HTML5 + JavaScript from the Curl Caede mobile development platfor.
Suggestions for ordering such kanji lists welcome ( I tend to prefer meaningful groupings over radicals, for example ).
I the case of radicals, there are more subtle approaches than just lumping them together with their cognates. Sometimes I like to see the radical not in the next item, but on the 5th, 6th or 7th item following. More a weave than a list.
Ideas ? Have you tried the page in the link above ? The plugin is very safe and quite easy to install. Linux seems to work best with Curl running in Firefox. Any of these can be taken out of the browser and run as desktop app's with minimal effort (i.e. run when you are off-line.)
For now all are free ... I will likely have an alternate "pay-for-deluxe" as Android and iPad app's. Customizable mnemonics is likely what I will go for there ... oops, there's that feral cat outa the bag agin ! Ornery as a polecat !