2 options on this page:
(a) A video showing you how to play Decodle
(b) (Having once watched the video) an opportunity to complete decoding the text started in the video
The original Decodle, better suited to use on a laptop. This works by dragging the letter to be changed to the grid number in the row above. Also, up to 4 different solutions per day.
The version shown in the video demo. For use on any device (including mobile phones). Works by first selecting the character to change, followed by the character to change it to. This version has only one text at a time but is changed every 6 hours.
An entirely different program to show the kWhs of sun in half hour increments for a specific location. This data is derived from Solcast but requires membership (free for one site)