Hey buddy! I found this in their Whitepaper. This may help you with your questions.

Developers
In the bootstrap phase, we will incentivize app development and addition of apps in the yappadappadoo Store with Flints. In the same way we will reward developers who recommend us to other members of the developer community or to companies considering app development.
 For the development of the first 20 apps and publication in the yappadappadoo Store 400 Flints per App – up to a total of 250.000 apps in the store
 For recommendation of new developers (once they have registered, created and installed an app in the in the yappadappadoo Store) 100 Flints per app up to a maximum of 20 apps. Further information is available on www.yappadapppadoo.io
Users
Users can earn Flints through registration, newsletter-signup, app-purchase and ratings, viewing in-app advertising and the recommendation of the yappadappadoo Store or individual apps to friends and colleagues. During the bootstrap phase, users can earn tokens as follows:
 Registration in the yappadappadoo App Store and/or newsletter signup: 50 Flints
 Purchase of an app: 10% of app price in Flints
 In-App Advertising: 1 Flint per Advertisement viewed
 Adding the yappadappadoo Store to device Home Screen: 50 Flints
 Recommendation of the yappadappadoo App Store: 25 Flints for each registration via the generated recommendation-link
 Recommendation of individual apps: 50 Flints for sales via the generated recommendation-link

Oh! What makes this Yappadappadoo application store so sure they are going to beat the two leading applications right now by using blockchain and this “PWA”? No all mobile or table users are knowledgeable on this matter, they dont even know what blockchain is and some dont even know what cryptocurrency is. This idea is good for only selected people then.

So you will be a free application store and anyone can use you unlike apple store is exclusive for apple products only as well as windows and google store is for android? If Yappadappadoo will be an independent application store, the chances of survival then is very minimal since you dont carry any company name?

Indeed Don Chester.

To have PWAs working offline breaks the barrier between upper class and lower class internet users and even giving chance to those with no internet access at all to run them.

Low memory apps will be very beneficial though i would love to see one in action to have a good comparison against native apps.

Sense and sensibility states that a browser works with internet connections as this is their primary design. 

PWAs started to revolutionize this scenario with web-based app needing minimal internet bandwidth, and if Yappadappadoo could indeed deliver offline PWAs, then it gains a strong footing to compete with popular native apps around.

Quite the contrary Jnissi.

With Yappadappadoo intending to disrupt the apps industry and head on against app giants such as app store and google play store, we might see a very good competition here as PWAs that Yappadappadoo will be offering breaks the conventional OS matching of apps.  Meaning to say that PWAs will not care either you are on iOS, android, windows, etc., the PWA will work fine as long as you have a browser on your device.

So, basically, the offline capabilities meant access to pages you have already visited? I think it was extremely helpful with trivago since hotel stays sometimes involves planning. This might be helpful to an online gamer who frequently look for the latest games to install but does research before installing a new one.

So, a PWA is downloading things to work offline? Like always downloading every time I choose to put it in home screen or something? Will there be a file manager or storage/memory manager and also capacity add on of sorts for mobile users in case? Or like a separate app like an optimizer?

How does it work? How will it work? The most downloaded and useful apps are usually online games and apps. Will those apps be available in this platform as well? Or it's going to be exclusively PWA offline capable?

Yes it is, and there's so much to offer with apps user's... Yappadappadoo is revolution of apps industry,with no download no update ever, and it comes with multi platform means it can operate with every operating systems like apple, google windows etc... But the best thing of all is you can use apps even you're offline and that is how PWA works, and this is only a few unique features of this project...