Currency

Main Type of Currency
The main/most common currency in the game is Money/Cash

It's one of the two critical currencies that allow you to buy upgrades

It's the easiest obtainable currency in the game, you can get it either with:
 * 1) Exploiting other players
 * 2) Collecting money automatically with the Spam app

Boosters
Boosters are the second critical currency you need to buy upgrades

You can obtain them with:
 * 1) Buying them in Shop for vTC. The current prices (September 6, 2019) are:

400 vTC for 300 Boosters

800 vTC for 720 Boosters

1440 vTC for 1440 Boosters

3040 vTC for 3040 Boosters

6000 vTC for 6720 Boosters
 * 1) Packages. Drop chances without software upgrades are Drop chances with software upgrades are
 * 2) Win wheel. You have a 50% chance of winning between 100 and 200 Boosters
 * 3) Booster Miner. The Booster Mines mines automatically Boosters for you at a constant rate at ≈8.33 Boosters per minute until it hits 4000 Boosters in total (it will take exactly 8 hours to reach 4000 Boosters)