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The Space Weather & Atmospheric eNvironments Toolkit
A comprehensive software toolkit for modeling, analyzing, and visualizing space and atmospheric environments for spacecraft, missions, and research.
Version 1.0.1 • Windows 10/11 • Released August 2026
No license? No problem! Download for free, explore, and license it later.
The SWAN application includes a Lite mode that is automatically used when no license is found.
No license key is required to download or use the Lite functionality. If you later obtain a license, you do not need to download a different version — simply activate your license in the same application.
Already have a license?
The same SWAN application unlocks the full toolkit when a valid license key is activated.
Looking for the full toolkit?
Request a SWAN license to unlock all the capabilities of the SWAN toolkit.
One application.
Two access levels.
Explore SWAN without a license first. When you’re ready to commit, request a license key to unlock the full toolkit.
SWAN-Lite gives you free access to a core set of SWAN capabilities with no license key required.
Upgrade to SWAN when you’re ready for the full research and mission analysis.
Try the licensed features for 30 days.
| SWAN | SWAN-Lite | |
|---|---|---|
| Application | SWAN | SWAN Same application! |
| License | Required | Not required |
| Capabilities | Full toolkit | Limited access |
| Cost | $120/mo $102/mo billed annually! | Free |
| Trial | 30-day free trial | Always free, never expires |
| Updates | ✓ Included | ✓ Included |
| Best for | Research & mission analysis | Exploring SWAN |
Ready to try the full SWAN toolkit?
Frequently Asked Questions
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No. SWAN-Lite is the unlicensed mode of the SWAN application.
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No. Anyone can download SWAN and use its available Lite functionality.
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Your license key unlocks additional functionality in the same SWAN application. You do not need to install a separate version.
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No. Activate your license key in your existing installation.