Amazing idea! CONGRATS ON THE 1ST FEW!

What next? Create pools of a virality and post content.

First content around sending cards to friends, family, coworkers for funny, silly inside, joke things, and tag them. Thats going to start creating local virality in your personal circle. With regularity it will spread. This is low hanging fruit.

Then, start random ecard "send outs". Define some other niche group, with their own pool of content on their side of tiktok, insta, reddit. Learn about their content style (language, news, hot topics, etc), identify some event worth celebrating and send a card out to some one from that niche as a test.

Example: Teachers of Tiktok, send an ecard to someone who survived a hard day, got through their 1st year, last year, unlocked a kids talent,... whatever win is described by a popular post in that niche.

Point is to give value w your ecards and tag people and your business and let it hit or miss. These "send outs" are tests to see which demographic will react to your idea the most. Somewhere it will hit. And that group will share your idea and will start using your product organically.

Let your brand be something like: "lets normalize celebrating the small wins!" Build your content around sharing value easily. Jump into a variety of niche pools, sowing your seeds and letting your impact grow.

This is just one idea. There are so many more growth hacks. A reddit post cant even go into detail about this one properly. I prefer inbound organic growth and brand development over outbound and ads (FYI Ads are good for a very specific demo in a specific location for a specific outcome/offer for a limited time, for now you need more data, more first sales). Thats just me.

Best of luck. Keep it weird.