The data is actually being persisted (MongoDB). Notice a unique Url is created when you click through the initial landing page. If you save that Url somewhere and come back to it your data will be there.
Thanks for taking some time on it - feedback is most welcome as I'll continue to hack on it over the next few months - time permitting.
Yes noticed that. Well done. It does still seem that A LOT if not most of the comments here are as well asking for a download/export feature. Everyone wants to know they are covered after investing a few hrs into working on something. No one really knows how long that URL would be active for. Anyway, I am a founder and have some real number so will dive in tonight. Export would still be welcome. Again, great job. Looks tight.
Thanks for taking some time on it - feedback is most welcome as I'll continue to hack on it over the next few months - time permitting.