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NOTE: All access is logged by IP address. Unauthorized access may result in prosecution.
Privacy Policy Updates - 05/23/2018
We've updated our Privacy Policy which becomes effective on May 25, 2018. Please visit hifisimtech.com and click the Privacy Policy link on top for important information regarding the information we collect and how you can manage it.
Announcement - 01/26/2016
Please note: The below message is not intended for legitimate registered users, but rather intended for those who may be illegally accessing our data network through unauthorized usage.
-----NOTICE----
All HiFi Data Network connections are logged by IP address and routinely audited for unauthorized access. Unauthorized access is prohibited and may result in legal action. If you are using this connection illegally, you are hereby notified that continued illegal access will be noted and fowarded to our anti-piracy and network attack response teams. Illegal usage causes significant disruption to our network and prevents legitimate users from properly accessing the system, and thus we have no other option than to take action against those who attempt continued illegal access.
Announcement - 12/09/2013

The next revolution in weather realism is NOW AVAILABLE! ASN brings entirely new levels of realism to FSX and soon P3Dv2. A free 7-day trial and an upgrade version from ASE is available. Click here to learn more!
Announcement - 4/04/2012
ASE SP5 Beta is now available, which includes access to our upgraded server network including an additional server for improved redundancy, availability and performance. Click here for details!.
Announcement - 4/03/2012
Active Sky 2012 Upgrade for ASE/ASA users Only is still available for a limited time, now on sale. Click here for details!.
Announcement - 12/07/2012
ASE Service Pack 4 has been officially released! All ASE users should update. Click here for more information!.
Announcement - 10/16/2011
We have upgraded our support system with the NEW HiFi Support Center! Available at support.hifitechinc.com, you can easily submit tickets, view our knowledebase, and view your order and license key information in your customer profile. Please register for a Support Center account to take advantage of these new services. All support for Active Sky Evolution is now exclusively provided by the Support Center.
Announcement - 08/23/2011
Active Sky Evolution Service Pack 3 has been released! Get it now!
Announcement - 12/06/2010
Active Sky Evolution Service Pack 2 has been released! It is available from the HiFi Support and Downloads page. This upgrade includes many improvements and enhancements and is recommended for all ASE users. Thanks to our public beta particpants for helping us get this ready for release!
Announcement - 04/26/2010
ASE Service Pack 1 (B572) has been released and is available from the HiFi Support and Downloads page. This is a recommended update for all users and provides several fixes and enhancements!
News - 02/26/2010
Active Sky Evolution has been released! This next installment in the Active Sky series brings further refinement and accuracy in weather synthesis and depiction, improved smoothing, increased high-fidelity aircraft compatibility, a new graphical look and many other behind-the-scenes improvements to further increase your desktop flight and weather simulation experience!
We'd like to personally thank you for supporting Active Sky and becoming a HiFi customer. Your purchase will help ensure that future development continues as we strive to raise the bar even further. Please visit our forum at AVSIM.com where you can discuss, seek support and find out about the latest developments.