Feedback needed: Tweets tracking app for Crypto and Stock traders

Hi,
I developed a SaaS app (https://www.tracksy.co) which is based on a fact that such influencers like Elon Musk can affect stock market by simply tweeting about any kind of stock (because there were such cases in history when he did). So basically the first ones who reacts to such Elon's tweets could possibly benefit from it.
So my app is monitoring Elon Musk's and other top crypto/stock influencers tweets and once let's say Elon tweets something, you will receive a SMS notification or an email (depending on your choice). Also you can add a filter for tweets that you might be waiting for, for example you can add a filter "bitcoin,tesla" - and then you will be notified only when Elon tweets something about bitcoin or tesla only. Also there is an option to add any 5 Twitter accounts of user's choice, so he can track his friend let's say. By the way I did not do any kind of marketing (I only did ProductHunt launch and got 29 upvotes)

Question: As I have like 3 non-paying users that just registered and the app is running for half an year for now, could you please give me your opinion about the idea itself? Maybe app idea is bad? Maybe market fit is bad? Maybe investing into marketing is the only thing I need?

BIG THANKS for all of you :)