Get a Free Demo Copy or a Full Featured License

We're offering a free copy of Tidewater Planetarium with most of the original features of the program. We hope you'll be impressed and want to explore all of the interesting features of the full version, whose modest price supports the ongoing development of this great learning and general interest astronomy tool.

The software requires WINDOWSTM 7, 8, 10 or 11. Memory and storage requirements are modest. The free version requires no license registration. The full version requires registration with a code purchased through FastSpring's efficient and secure eCommerce service. Paid licenses are tied to a single computer (you can make computer upgrades without losing access) and includes access to all new releases within the MAJOR version range (e.g., the current major version is 2). Just download and install the new version and you're set.

Apple Mac License

GREAT NEWS! The Mac version of Tidewater Planetarium is now available to, and V2.6.1, with solar eclipses, is now on the Mac App Store:

Free WindowsTM License

The free version includes full-sky view, the constellations, variable speed simulation and more.

Get your free copy

for WINDOWSTM 7, 10 or 11 computers.

Download V2.6.2 FREE Version

Get the FULL Version

for WINDOWSTM 7, 10 or 11 Computers.
Purchase is via secure FastSpringTM checkout.

Save half the purchase price. Enter
Coupon Code: SAVE50V2

Buy a License or Two

Download V2.6.2 (Latest Full Release)- License Required to Register

Download V2.6.1 (Previous Release) - License Required