Alena
AMMust have This is very high level, strong and quick chess analysis server which is made by professionals. Use it many years and recommend to get it to all chess professionals.
Kostya Kavutskiy
GBReliable Cloud Engine Chessify offers some powerful cloud engines that make chess analysis a lot more efficient--very useful tool for professional players. Their new database web app is also quite promising as a place to store opening files/analyses. The team is quite dedicated and extremely responsive as well.
Anish Giri
NLI have been using chessify cloud… I have been using chessify cloud engines for opening preparation for the past few years. It is the most high-end and reliable solution for my purposes. A proud ambassador here.
Jack van Zyl-Rudd
ZAChessify is world class Chessify is world class. Offer great services and have great and friendly people in charge. I recommend chessify to anyone that is not using it. They are clear of Chessbase.
Betty Panossian
AMVery helpful website for analyzing my own games I found the website very helpful in terms of keeping my own game collections and analyzing them with pretty strong engines. I got the basic plan, which they call an "Amateur plan", and it covers all my needs as an online player.