According to Google:
An altcoin is any digital cryptocurrency similar to Bitcoin. The term is said to stand for “alternative to Bitcoin” and is used to describe any cryptocurrency that is not a Bitcoin. Most popular altcoins use the same fundamental building blocks as Bitcoin.

All of those ICO's are quite good and interesting..

DIW plans to bridge and solve issues with the introduction of its global, blockchain-based, decentralised network complete with its own ecosystem and currency.
To gain access into the network, members will be provided with a Secure Vault, where they will be able to store their entire ‘Digital Life’ including documents such as identities, passports, KYC & KYS, financial, contracts, health records as well as login details.
Organizations as well as individuals around the globe, will be able to join in and exchange their services in the form of a Global Directory. The network will ensure that their identity is validated and their details accurate. Transactions will be completed in full transparency and all network members will be able to see each member’s real life performance in the form of a rating score.

The DIW token will be used and accepted throughout the network for transactions between its members, enabling higher security. Additional security services such as a digital contract-based escrow service will also be offered.
To top it all up and follow the crypto currency trend, DIW plans to introduce its own Payment Gateway that will be easily integrated within e-commerce websites accepting both fiat as well as Crypto currencies enabling the utilisation of crypto currencies in everyday life.

For more information visit https://www.diwtoken.com/