Terms of Service

1. Acceptance

By downloading, installing, or using Headroom ("the App"), you agree to these Terms of Service ("Terms"). If you do not agree, do not use the App. These Terms form a binding agreement between you and Garm Tech B.V., registered in the Netherlands under Chamber of Commerce number 99602075, with registered address at Staalkade 6 O, 1011 JN Amsterdam, the Netherlands ("Garm Tech", "we", "us", "our").

2. What Headroom Does

Headroom is a desktop application for macOS, Windows, and Linux that runs a local proxy on your machine. It intercepts traffic between your AI coding tool (such as Claude Code or OpenAI Codex) and the provider's API (Anthropic or OpenAI), compresses and optimizes prompts locally, and forwards the optimized requests onward. By design, all prompt processing happens on your device. For details on what data is and is not collected, see our Privacy Policy.

3. Account

Some features require creating a Headroom account using your email address. You are responsible for keeping your account credentials secure and for all activity under your account. We may suspend or terminate accounts that violate these Terms.

4. Free Trial

New installs start with a 7-day free trial that begins in the app after you enter your email address. No payment method is required to start or use the trial. When the trial ends, optimization stops until you choose a paid plan; you are only charged once you subscribe. Trial periods are provided once per user. We reserve the right to modify or discontinue trial offers at any time.

5. Paid Subscriptions

Paid plans are billed on a recurring basis through our payment processor, Polar. By subscribing, you authorize recurring charges at the frequency and rate disclosed at checkout. You may cancel at any time through your account settings; cancellation takes effect at the end of the current billing period, and no partial-period refunds are issued for unused time within a paid period. All prices are exclusive of applicable taxes.

Right of withdrawal. If you are a consumer in the European Union, you have the right to withdraw from a subscription purchase within 14 days of the transaction without giving any reason. To exercise this right, contact us at support@extraheadroom.com within 14 days of your purchase. If you withdraw, we will refund the amount paid for that billing period. This right does not apply to renewal charges after the initial subscription period.

6. Marketplace and Lifetime Purchases

Headroom may also be offered through third-party marketplaces we have authorized in writing (such as AppSumo). If you purchased access through an authorized marketplace, the following applies:

• Your purchase, billing, and any refunds are handled by the marketplace under the marketplace's own terms and refund policy. Section 5 (recurring billing, cancellation, and withdrawal) does not apply to one-time marketplace purchases.
• To activate your plan, you must redeem the license code provided by the marketplace. Each code entitles one user to the plan tier stated in the marketplace listing.
• Where the marketplace listing describes a "lifetime" plan, your license lasts for the deal term stated in that listing and includes the updates we make to the corresponding plan. If we discontinue or materially change that plan, we will provide the closest reasonably equivalent plan then available.
• All other provisions of these Terms (including acceptable use, warranty disclaimers, token usage responsibility, and limitation of liability) apply to marketplace purchases.

7. Acceptable Use

You agree not to:

• Reverse engineer, decompile, or disassemble the App
• Resell, sublicense, or redistribute the App or access to it, except through marketplaces or resellers we have authorized in writing
• Use the App to violate any applicable law or third-party rights
• Attempt to circumvent or interfere with subscription or trial enforcement
• Use the App in a way that places unreasonable load on our infrastructure
• Use the App in any way that violates the terms of service of Anthropic or any other upstream API provider whose services the App interacts with on your behalf

8. Intellectual Property

Headroom and all associated software, trademarks, and content are owned by Garm Tech or its licensors. These Terms do not grant you any rights in Garm Tech's intellectual property beyond the limited license to use the App for your own use.

9. Third-Party Services

The App interacts with Anthropic's Claude API and OpenAI's API on your behalf, depending on which coding tool you use. Your use of Claude Code, OpenAI Codex, and their respective APIs is also subject to Anthropic's and OpenAI's own terms and policies. Payments are processed by Polar, subject to Polar's terms. The App also uses third-party services for analytics and error reporting; details of those services and how they handle data are set out in our Privacy Policy. Garm Tech is not responsible for any third-party services.

10. No Warranty

The App is provided "as is" and "as available" without any warranty of any kind. We do not warrant that the App will be uninterrupted, error-free, or that token savings will meet any particular threshold. Actual savings depend heavily on your workload: compression rates on individual noisy inputs (such as JSON tool results and logs) differ substantially from blended end-to-end session rates, and your results may be materially lower than any published benchmark or example figure. Use the App at your own risk.

11. Token Usage and Upstream Charges

You are solely responsible for all charges, fees, and usage billed to you by Anthropic, OpenAI, or any other upstream provider, including any unexpected, elevated, or anomalous token consumption, whether caused by the App, a malfunction or defect in the App or its dependencies, a change to Claude Code, OpenAI Codex, or their APIs, network conditions, or any other cause. The App does not guarantee any reduction in token usage and may in some circumstances result in usage equal to or greater than not using it. To the fullest extent permitted by applicable law, Garm Tech is not liable for any such charges, whether characterized as direct or indirect damages, and you are responsible for monitoring your own upstream usage and spend.

12. Limitation of Liability

To the fullest extent permitted by applicable law, Garm Tech will not be liable for any indirect, incidental, special, consequential, or punitive damages arising out of your use of the App, including but not limited to loss of data, lost profits, or service interruptions, even if we have been advised of the possibility of such damages. Our total liability for any claim is limited to the amount you paid us in the three months preceding the claim. Nothing in these Terms limits or excludes liability that cannot be excluded under applicable law, including mandatory statutory rights of consumers.

13. Changes to These Terms

We may update these Terms from time to time. For material changes, we will notify you by email at the address associated with your account at least 14 days before the changes take effect. Non-material changes will be noted by updating the "Last updated" date above. Continued use of the App after changes take effect constitutes acceptance of the revised Terms.

14. Governing Law

These Terms are governed by the laws of the Netherlands. Any disputes arising from these Terms or your use of the App shall be submitted to the exclusive jurisdiction of the courts of Amsterdam, the Netherlands. If you are a consumer resident in the European Union, this clause does not affect any mandatory rights you may have to bring or defend proceedings in your country of residence under applicable consumer protection law.

15. Termination

You may stop using the App at any time. We may suspend or terminate your access if you violate these Terms or if we discontinue the service. Upon termination, your right to use the App ceases immediately. If we terminate your account other than for a breach of these Terms on your part, we will refund a pro-rata portion of any prepaid subscription fees for the unused remainder of your current billing period. For purchases made through an authorized marketplace, refunds are governed by the marketplace's refund policy, and discontinuation of a plan is handled as described in Section 6.

16. Severability

If any provision of these Terms is found by a competent court or authority to be invalid, unlawful, or unenforceable, that provision will be modified to the minimum extent necessary to make it enforceable, or severed if modification is not possible. The remaining provisions will continue in full force and effect.

17. Contact

Questions about these Terms? Email us at support@extraheadroom.com.