End User License Agreement
This End User License Agreement (“EULA”) is a legal agreement between you and Ryan Loechner (“Licensor”) for the commercial Stacker Pro application, including official binaries and related documentation (the “Software”).
By installing or using the Software, you agree to this EULA. If you do not agree, do not use the Software.
The free open-source Stacker app (browser stacking only) is a separate product, licensed under the MIT License at github.com/rloechner/stacker. That license does not apply to Stacker Pro source or binaries.
1. License grant
Subject to a valid purchase (or an authorized trial / complimentary license) and these terms, Licensor grants you a personal, non-exclusive, non-transferable, non-sublicensable license to install and use the official Software on Macs that you own or control, for your own personal or internal use.
A lifetime license is per person, not a seat you may resell, rent, or transfer as a standalone product. You may use your license on the Macs you regularly use. You may not share license codes publicly or sell them.
2. Ownership
The Software is proprietary commercial software. Licensor retains all right, title, and interest in the Software, including source code, trademarks, and official builds. This EULA does not sell the Software to you.
3. Restrictions
You may not:
- Copy, distribute, or publicly host the Software except as needed to install it on Macs you own or control
- Reverse engineer, decompile, or disassemble official binaries except to the extent applicable law expressly permits
- Remove or obscure copyright, license, or proprietary notices
- Circumvent trial, license, or access controls
- Use the Software to provide a competing hosted or redistributed product
4. Trial
An in-app 14-day trial may unlock the full product without a paid license. When the trial ends, the Software may lock until you activate a valid STKR1 license. Saved stacks remain on your Mac.
5. Disclaimer — “as is” and Accessibility limits
THE SOFTWARE IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
Stacker Pro is a third-party window utility. It depends on macOS Accessibility and related system APIs. Apple does not guarantee that those APIs will expose every window, survive sleep/wake, or behave consistently across apps, Stage Manager, Spaces, or fullscreen. Reliability varies by app and by macOS release. Licensor does not warrant uninterrupted or error-free stacking.
6. Limitation of liability
To the maximum extent permitted by law, Licensor is not liable for any indirect, incidental, special, consequential, or lost-data damages, or for loss of use arising from the Software. Licensor’s total liability for any claim relating to the Software will not exceed the amount you paid for the license that gave rise to the claim (or US $20 if you have not paid).
Some jurisdictions do not allow certain limitations; those limits apply only to the extent permitted.
7. Termination
This license ends if you breach it. You may stop using the Software at any time. Sections that by nature should survive (ownership, disclaimers, liability) remain in effect.
8. Other terms
Purchase, refunds, and pricing are described in Terms of Sale. Privacy practices are described in the Privacy Policy. The Software may check for and install updates you approve (Sparkle); that does not change this license grant.
Governing law: the laws of the Licensor’s place of residence, excluding conflict-of-law rules, except where mandatory local consumer law applies.
Questions: licenses@ryanloechner.com.