The Web Data app created by kiko is unfortunately not working/accessible, so I decided to create this little tool - http://wstats.herokuapp.com/.
Source code is on github: https://github.com/galymzhan/wstats
The tool uses the same logic explained by kiko:
WaniKani’s API doesn’t provide the actual times that you leveled up. In fact they may not store this information at all. Instead, the web app determines when a level began (and thereby when the previous one ended) based on the time you completing the lesson for the first radical of the level.I used only this feature of kiko’s app, what feature do you miss most?