Terms of Use
End User License Agreement · Last updated November 9, 2026
This agreement is between you and the publisher of Mac Ninja ("we", "us"). It covers the Mac Ninja app, the Mac Ninja Helper browser extension, their updates and everything that ships with them (together, "the Software"). By downloading, installing or using the Software you accept it. If you don't, don't use the Software; if you bought it, ask for a refund within 14 days (see our refund policy).
1. What you may do
- Trial. You may use the Software free for 7 days on each Mac to see whether you like it.
- License. With a valid license key you may install and use the Software on up to 3 Macs that you own or control, for as long as the license is valid (the Yearly plan while the subscription is paid; the Lifetime plan indefinitely for the versions released while it is active, plus every update we choose to provide).
- Backups and moves. You may keep copies for backup and move your license to another of your Macs (Settings › Deactivate License on This Mac).
- Your settings. The lists and settings the Software writes in your Application Support folder are yours to edit.
2. What you may not do
Except where the law where you live expressly allows it despite this agreement, you may not, and may not help or allow anyone or anything else to:
- Reverse engineer the Software: decompile, disassemble, decrypt, trace, debug or otherwise analyse it to discover its source code, structure, algorithms or how it works.
- Derive from it: create software, documentation or other works based on the Software or on an analysis of it, or use the Software or any part of it as a reference to reproduce its features or behaviour.
- Use automated tools or AI systems for either of the above: feeding the Software, its files, its text or its behaviour to a reverse-engineering tool, a language model or an agent in order to analyse, summarise, reproduce or re-create it, or using any of it as training or reference material for such systems.
- Circumvent its license, trial or integrity checks, or make, share or use anything that does (these checks are technological protection measures in the sense of laws such as 17 U.S.C. § 1201 and Article 7 of Directive 2009/24/EC).
- Share or resell license keys, modified copies or the Software itself, or remove any notice in it.
- Misrepresent it: present the Software or a modified copy as your own, or use the Mac Ninja name or ninja artwork for other software.
Looking at the files the Software writes for you, writing about the Software, comparing it with other products, and helping someone use, configure or troubleshoot their own copy are all fine. For anything else, ask: support@macninjaa.com.
3. Ownership
The Software is licensed, not sold. It is protected by copyright and other laws and remains our property, together with its name, artwork and website. Open-source components it includes keep their own licenses (the Sparkle update framework, MIT License; its text is in the app bundle).
4. Updates and changes
The Software updates itself to keep working and secure. We may add, change or remove features over time. We may change these terms for future versions; the version that ships with the Software you use is the one that applies.
5. Privacy
What the Software and this website send and why is described in our privacy policy; the short version is that the app has no account, no analytics and no tracking.
6. Termination
This license ends if you break these terms, if a purchase is refunded or charged back, or when a Yearly subscription ends. We may also disable a key that is being shared or abused. When the license ends, stop using the Software or return to the free trial state. Sections 2, 3, 7 and 8 survive.
7. No warranty
The Software is provided "as is". Every Mac is different, and we can't promise it will make yours faster, be free of errors, or suit every purpose. To the extent the law allows, we disclaim all warranties, express or implied, including merchantability and fitness for a particular purpose. Your statutory rights as a consumer are not affected.
8. Limitation of liability
To the extent the law allows, we are not liable for indirect, incidental or consequential damages, lost data, lost profits or lost time arising from the Software, and our total liability for any claim is limited to what you paid for the Software in the 12 months before the claim. Nothing here excludes liability that can't be excluded by law.
9. Governing law
These terms are governed by the laws of Sweden, where Mac Ninja is published, without regard to conflict-of-law rules. If you are a consumer, mandatory consumer protection law in the country where you live still applies. Disputes go to the courts of Sweden, or, for consumers, the courts your local law gives you.