Frequently Asked Questions

We offer a free trial with our plans. If you wish to cancel, you may do so at anytime before the trial ends and you will not be billed. Once your trial is over, you will be billed monthly and can cancel at anytime!

We launched FIXSIM in 2013 currently have clients around the globe. From independent contractors to large FinTech firms, we have plans to fit your needs.

We can support any version of FIX, but most production systems use FIX 4.4, 4.2, or 4.0. We support all versions from 4.0 through 5.0 and it's service packs.

Have a look! Register for free and you will be entered into our demo account where you can see a preview of the UI.

FIXSIM can handle custom tags on both incoming and outgoing messages. If you have questions or need customizations, we're happy to work with your requirements.

Yes! We allow you to directly target a simualted Bloomberg session.

Yes, our professional plans have our Rule Builder, which allows you to define behavoirs on how FIXSIM should respond to messages received.

No, we are a SaaS company. By hosting FIXSIM we are able to deploy, modify, and upgrade our services to provide our customers with an ever improving solution. NO software to download and maintain!

Yes! We provide encrypted TLS 1.2 FIX sessions and our Web application uses it as well.

Yes, FIXSIM has a powerful feature (Raw Messages) which allows a user to copy/paste a valid FIX message into your target session. FIXSIM will automatically recalculate checksum, body length, etc and also update the CompIDs and sequence numbers and more. Incredibly powerful feature to troubleshoot production issues.