This is how you gain 30K users with 0$ marketing budget

This company gained 30K users with 0$ marketing spend
Companies like Tally use this technique

How?
Freemium!
Offering the product for free hooks the client, persuades them to subscribe for premium to get more features after loving your product!

Free promotion using fun elements!
Free users have a “Made with…” badge on their forms, which turns them into your bigger promoters

About 3% end up upgrading to the pro version, which is how the company makes money