Terms of Service — SigmaTracker

Last updated: September 18, 2026

These Terms of Service (the "Terms") govern your access to and use of SigmaTracker (the "App", "we", "us"), an iOS app that lets you watch public cryptocurrency wallet balances across multiple blockchains. By installing, accessing, or using the App, you agree to be bound by these Terms. If you do not agree, do not install or use the App.

SigmaTracker is an independent project developed and maintained by an individual. There is currently no associated legal entity or company. References to "we," "us," or "the developer" in these Terms mean that individual developer.

1. What SigmaTracker Is

SigmaTracker is a read-only, informational tool. You add public wallet addresses, and the App reads their publicly-visible balances from third-party block explorers and RPC endpoints and shows you those balances and how they change over time. SigmaTracker is not a wallet. It cannot generate or import private keys or seed phrases, cannot sign anything, and has no mechanism whatsoever to send, receive, or move funds. It has no custody of, and no access to, any assets.

2. Informational Purposes Only — Not Financial Advice

Everything the App shows you — balances, historical changes, and prices — is provided for informational purposes only and does not constitute financial, investment, legal, or tax advice. The App does not recommend, endorse, or evaluate any asset, address, or course of action. Nothing in the App creates a fiduciary relationship, agency, partnership, or joint venture between you and the developer.

You are solely responsible for any decision you make based on information shown in the App, and for any tax reporting or other regulatory obligations arising from your use of the App in your jurisdiction.

3. Data Comes From Third Parties — May Be Wrong, Delayed, or Unavailable

Balances are read from public block explorers and public blockchain RPC endpoints; prices are read from a third-party price API. None of these services is operated or controlled by us. As a result:

• A balance or price shown in the App may be delayed, temporarily unavailable, or simply wrong — because of a provider outage, rate limiting, a chain reorganization, network conditions, or any other cause outside our control.
• Background refresh depends on iOS's own scheduler, which may skip a scheduled check entirely; a balance you see may not reflect a very recent on-chain change, and a change notification is best-effort, not guaranteed.
• We do not guarantee the accuracy, completeness, or timeliness of any data displayed by the App, and we bear no responsibility for a third-party provider's errors, downtime, or discontinuation.

Do not rely on the App as your sole source of truth for a balance or price where accuracy is critical — verify independently, for example directly on a block explorer, before acting on anything the App shows you.

4. "As Is" — No Warranty

THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, ACCURACY, SECURITY, OR AVAILABILITY.

We do not warrant that the App will be uninterrupted, error-free, or free of bugs, or that any balance, price, or notification will be accurate, timely, or delivered at all. You use the App entirely at your own risk.

5. Limitation of Liability — You Assume All Risk

To the maximum extent permitted by applicable law, in no event shall the developer be liable for any claim, loss, or damages of any kind — direct, indirect, incidental, consequential, special, or exemplary — including but not limited to:

• Any decision you make, or fail to make, based on a balance, price, or notification shown by the App.
• Inaccurate, delayed, or missing data from any third-party provider the App relies on.
• A missed or delayed notification.
• Bugs, defects, or vulnerabilities in the App's code.
• Any other cause arising from or in connection with the App or your use of it.

This applies whether the claim is based in contract, tort, negligence, strict liability, or any other legal theory, and regardless of whether we were advised of the possibility of such damages. Because the App never holds or moves your funds, it cannot itself cause you to lose them — but you nonetheless assume all risk of relying on the information it displays.

Nothing in this section is intended to exclude any liability that cannot lawfully be excluded (such as for fraud or willful misconduct); where a jurisdiction does not permit certain exclusions, this section applies to the maximum extent that jurisdiction allows.

6. Pricing

SigmaTracker is currently free to use, with no fees of any kind. We may introduce an optional paid tier in the future (for example, to unlock additional tracked addresses, networks, or features); if we do, any such change will apply only going forward and will be described clearly at the point you would be asked to pay. Nothing about the App's core, currently-free functionality is guaranteed to remain free forever.

7. Eligibility and Acceptable Use

You represent that you are of legal age to use the App in your jurisdiction and that your use of it is lawful where you are located. You agree not to use the App for any unlawful purpose, and not to attempt to interfere with, disrupt, or circumvent the App or the third-party infrastructure it relies on.

8. Governing Terms

SigmaTracker is offered by an independent individual developer with no associated legal entity. These Terms do not designate a specific jurisdiction's law or courts as exclusively governing; where a dispute arises, the mandatory consumer-protection or other law of your own jurisdiction applies to the extent it cannot be excluded, and the limitations in Sections 4 and 5 apply to the maximum extent that law allows.

9. Changes to These Terms

We may update these Terms from time to time, for example when adding support for additional networks or changing which third-party providers are used, or when introducing a paid tier. The date at the top of this document indicates the last revision. Continued use of the App after a change to these Terms constitutes your acceptance of the revised Terms. If you do not agree with a change, your only recourse is to stop using the App.

10. Termination

You may stop using the App at any time by uninstalling it. Because the App never holds your funds, uninstalling it has no effect whatsoever on any asset — everything you were tracking remains exactly where it always was, on-chain, independently of the App. We may discontinue, modify, or restrict the App at our sole discretion and without notice.

11. Contact

For questions or feedback about these Terms, use the feedback form at sigma9.app/feedback/tracker.

We do not maintain a public support email to reduce spam. Please use the form above.

These Terms of Service are the authoritative version for the SigmaTracker iOS app.

They are published at a stable public URL — https://sigma9.app/terms/tracker — and are referenced from the Apple App Store listing and inside the App. Separate terms cover the Sigma9 browser extension; this document applies only to SigmaTracker.

SigmaTracker — watch your public balances. Informational only. Not financial advice.