This is great, bit user base there ready to be tapped. Price is very low at the moment might be a good entry point.
Price will get interesting once attention economy comes into place, which revolutionizes advertisements and Gemz will have a real world purpose. At 100k users you will have a whole Crypto based economy in the app.
I'm really looking forward to this attention based economy, don't know when it will be released but paying the user to advertise instead of the company is very attractive and the money appears very easily in the wallet so no banking credentials are needed. If the devs just implement an easy way to buy Gemz in app something along the line as the way julia operates would be nice. From 100k users you would expect the user base to grow exponentially, but to get to 100k is the hardest, even 50k would do it since the app works rewarding you have a huge amount of users operating as promoters.
The biggest way to succeed as a Crypto is to build a significant network effect which equals higher price. A network effect which operates only in the Crypto scene won't make it successful, because everyone tries to screw each other over and the amount of users is very small. Giving your project the ability to be used by users outside of this dark Crypto circle is the key. For this you must build something very newb friendly, easily accessible and at the same time innovative which many alts don't qualify for.
So now that it's easily accessible and has a use case, all you have to do is getting new users to just download the app which takes seconds. Coinbase, a die hard Bitcoin fan realized how innovative Julia is and decided to market it to their so many users and just the bot saying powered by GetGems is genius marketing done by the devs. They saw an opportunity and went for it and it paid off, some guy says yeah but they used Coinbase API any Crypto could do that, well any person can become an athlete as well but it's not easy at all, GG is the first alt related app to be mentioned on Coinbase apps list and even got their own developer spotlight in the Coinbase blog with an interview with the devs. From all the apps only 2 of them got a developer spotlight on their blog, this all makes getgems dev "resume" stronger for when they are getting more partnerships that's why i like this app you have lots of flexibility marketing wise.