Indeed, they had. The web version is available at https://client.wavesplatform.com and needs no installation. When enter the link it will ask you if you want to download desktop app or continue with web, Click on the second option and you are ready to go.
That's right.
How to trade tokens on the DEX read here https://support.wavesplatform.com/en/knowledge-bases/2/articles/16361-how-to-trade-tokens-on-the-dex
For the past day, the price was about $ 0.12-0.14 but the quotes change depending on the market situation, while in general they are steadily growing, despite the fall in the crypto market.
Now the crypt market has fallen, and thanks to this fact, the actual price of the tokens has slightly subsided, but I am sure that the price will rise again in the next 24 hours. You have a chance to take a bit cheaper on a pullback.