It's the same TWS program, but in general will be at a slightly different version level than any particular copy that you download.
This can work in your favor too, because they can quickly switch the version level for all users accessing it from the web if they need to, to address an urgent problem.
They are probably fully able to manage which is the best version than the user is, for most users.
Those who do want to manage the version level themselves can choose the newest or an older version by downloading manually from
http://www.interactivebrokers.com/en/index.php?f=674
This can work in your favor too, because they can quickly switch the version level for all users accessing it from the web if they need to, to address an urgent problem.
They are probably fully able to manage which is the best version than the user is, for most users.
Those who do want to manage the version level themselves can choose the newest or an older version by downloading manually from
http://www.interactivebrokers.com/en/index.php?f=674
Quote from JackR:
This is very, very rarely true. More often than not the "browser-based" program is one version ahead of the standalone. In instances where the basic version number is the same, the revision level is often different. If you use the "browser-based" program it checks with the IB server whenever you open it. If IB has made a change the new version is downloaded and then runs. Both versions are Java applications and run under a copy of Java installed on your machine. You can see the version and revision level by going to "Help" on your TWS and then to "About Trader Workstation". Then scroll down a bit in the window that opens.
The advantage to using the standalone version is that, because you elect when to make the change, you can be prepared to experience all the nifty new features and changes that Bob111 raves about from time-to-time. If you run the Browser version you get surprised. And that can cost you money.
Jack