We're very active on social media platforms, and in addition, we created a challenge around the launch to further motivate people to become app users.:)
Share information about your product as much as you can! Post about it here and on your other social media platforms (Facebook, LinkedIn, Instagram - depending on what works better for you), talk about it with people you know and be consistent enough about it!
It's also worth finding communities on Discord, Slack, Telegram and other platforms and being active there to establish your presence and then use it to promote your product.
Build anticipation with sneak peeks and teasers. Engage future users with a countdown, and maybe stir the pot with an early-bird special or giveaway. It's like the trailer to a blockbuster movie—give them a taste, but leave them craving the premiere. 🎬🚀