Optional Chaining Technologies

Terms of Use

Effective date: May 16, 2026

These Terms of Use govern your use of the Optional Chaining Technologies mobile apps published by Optional Chaining Technologies Ltda ("Optional Chaining", "we", "us", or "our"). By using the apps, you agree to these terms.

Apple App Store Terms

Apps downloaded from the Apple App Store are also subject to Apple's applicable terms, rules, and policies. If no custom end-user license agreement is provided in App Store Connect, Apple's Standard EULA applies to the app. Apple handles App Store downloads, purchases, subscriptions, refunds, billing, and related account matters when applicable.

Apple's Standard EULA and App Store terms are available through Apple, including at apple.com/legal/macapps/stdeula.

Use of the Apps

You may use the apps only for lawful, personal, and appropriate purposes. You must not misuse the services, attempt to interfere with their operation, reverse engineer or copy protected parts except as permitted by law, bypass access controls, upload malicious code, or use the services in a way that harms other users, Apple, Google, Firebase, or Optional Chaining.

Utility App Outputs

Some apps may provide measurements, calculations, camera-based readings, estimates, or other technical outputs. Results may vary depending on device hardware, software, settings, environment, lighting, calibration, available sensors, and user operation. You are responsible for checking whether an output is appropriate for your situation before relying on it.

No Professional Advice

The apps are provided as general-purpose tools and information. They do not provide legal, financial, medical, engineering, safety, photography, or other professional advice. You should not rely on any app output as a substitute for professional judgment where professional advice is required.

Intellectual Property

The apps, names, logos, designs, text, software, and other content are owned by Optional Chaining or its licensors and are protected by intellectual property laws. These terms do not transfer ownership of any intellectual property rights to you.

Purchases, Subscriptions, and Refunds

If an app offers paid downloads, in-app purchases, or subscriptions, payment, billing, renewal, cancellation, download access, and refund handling are managed by Apple/App Store, unless otherwise stated. Please use your Apple account settings or Apple support for those matters.

Availability and Changes

We may update, change, suspend, or discontinue the apps, features, prices, descriptions, or availability at any time, subject to applicable law and platform rules.

Disclaimer

The apps are provided "as is" and "as available". To the maximum extent permitted by law, Optional Chaining disclaims warranties of accuracy, reliability, fitness for a particular purpose, merchantability, availability, and non-infringement.

Limitation of Liability

To the maximum extent permitted by law, Optional Chaining will not be liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for loss of profits, data, goodwill, or business opportunities arising from or related to your use of the apps.

Governing Law

These terms are governed by the laws of Brazil, unless mandatory consumer protection or other mandatory laws in your jurisdiction require otherwise.

Contact

Questions about these terms may be sent to contact@optionalchaining.com.

This document may be updated from time to time.