ICO, IEO and IDO explained in a few sentences:
Ethereum launched its public crowdfunding campaign in July 2014, with participants using Bitcoin to buy ETH.
IEOs and platform launches add an extra layer of screening, but that doesn’t mean a token won’t fall below its offering price after listing.
IDOs take place entirely on-chain. Before approving a transaction, verify the website and contract address—there are many fake websites.
$ETH 2313.72(+0.044%)