GramFree is NOT a legit website, because it is not registered as a cryptocurrency, which means there is not guarantee that you will get your money.
Final Verdict
As already discussed, GramFree is an entire scam, so now it is your responsibility to inform your friends about this because everyone is busy earning grams which have no result.
You can read full detail about GramFree here https://www.piticstyle.com/gramfree/