Apps you should have:

- ConinMarketCap

- CoinGecko

These APPs allow you to view the supplies (unlimited, limited) of any cryptocurrency, its capitalization and historical and minimum growth. Before investing, check the information from the mentioned apps.

Cryptocurrencies with limited supply and with few cryptocurrencies in circulation (they do not generate inflation) unlike others, are:

$LTC

$BCH

$ZEC

Alternatives to the pioneer but long term.