No worries, it's so kind of you to offer! My daughter is still young enough that I can just make them myself easily (Basically only +, - and x). That app sounds great! :)
These look so cool! I’ve been lurking here for a couple months now and this got me out of lurkdom. Lol. Do you have the generator on your blog/website? I’d love to use this with my 6 yr old. She’s a big fan of treasure hunts too.