what's better: in-game purchase or new application ?

I'm doing my first game with construct2 and I plan to have a free but limited version and full version to be sold for 1$ let's say.

I see two options of doing that:

a) offer a single version in google play, and inlcude the option of in-game purchase the additional features inside the game (with real money)

b) offer 2 versions in google play, the free and the $1 one.

Option b is the easier I guess, and after reading many posts and tutorials, I do not have it clear how to transact with real money inside a game.

What are your opinions ? can anyone give me some direction on how to make in-game purchase with real money ?

Offer 2 different versions, it will release lite and paid version both and provide paid app link in lite version!

yep, I suppose it's the simple way from a programming perspective, but conversion rate into purchases I guess will be lower. But the trade off is that I should use IAP module, pay the google dev. fee as well and export with CooconJS instead of Crosswalk, so not quite sure what way to go.

That's not, what it was in my mind, i was suggesting in marketing perspective. It will help and if you are into promotion, concentrate on paid version they'll know about lite ver simultaneously.

Version 2 does seem like the wiser choice.

I have recently launched my app with Google Play, so as for option "a" I would definitely like to see someone write a tutorial on how that would be done. The only one I have come across deal with digital currency as apposed to real money.

Go with B. Offer 2 versions in google play, the free and the $1 one. You can always put some Ads into a free version.

IAP are total bullshit (personal opinion )