You want a faster growth rate.

Read some Andrew Chen, also read the story of how Facebook grew initially, and watch Peter Thiel talk about monopolizing a small market.

It's a social app, so it is about people having an audience curated for the content they share, with that audience being curated by ( presumably ) their "family and friends" from real life.

So the growth rate is going to be slower than say, an app that is targeted at students at a single university ( do you know why ? ).

Your site says the app is secure, this is a big claim to make these days, and perhaps unnecessary. If you are going after people who want "secure" apps, perhaps that is a useful target to focus on ? However, if you are not really 100% committed to making it a reliably secure way to share things, why even make that claim? It may complicate your message. Privately may be what you are aiming for, and then you can explain it does privately differently to other things like Line, FB or WhatsApp.

Speaking of explaining how things are different, telling your people how your app is different to the apps it is most similar to ( such as perhaps ) LINE, WhatsApp, FB, is something which may influence your peoples' choice to use your app over something else. What would make someone switch from FB to Taza? From WhatsApp to Taza? From LINE to Taza?

"Social network" apps are the original kingmaker app, and one of the things that means is there are a few monopoly players to distinguish yourself from. What makes your product different? Why will people in your market use it over the other players?

If you are going for seed funding I guess the answer to the above two questions is important, and the answer to a third is also : Why did you make this? Did this arise out of some personal thing you were trying to solve, something deeply motivating for you, and you found a solution didn't exist, and you built one? It works to consider what is the basis of your motivation to make this product. You can "ask for" funding at any stage, the "possibility" of asking is always your choice, so nothing is stopping you from asking. Whether you get funding depends on what you say and show the people you ask for that funding.

The best way to educate the people about how to use your app is for those people to educate each other. Just like you did with your initial launch group, you want other people to recommend that app to their friends, and show them how to use it and so on. Ideally, the app should make it simple and easy to use, and people shouldn't be "astonished" by its behaviour.

An answer to your first question really works to come from you guys. If it "looks like" your "message is working", what does that mean? What are you measuring, and what does that suggest to you that contributes to you saying it is working? It is from this data collection and line of reasoning you will be able to conclude whether the results you are getting work for you or not.

Finally, what is the hook, the thing that makes people really hungry to use it initially? I guess the hook for facebook was "the person in my class is on there, and I can see more about them". I guess the hook for tinder was "I can possibly find people to date", I guess the hook for LINE and WhatsApp was "I can text people for FREE". What is the hook for Taza? is a question it may work to consider.