# Cookie Policy Source: https://meptools.com/cookies/ > This Cookie Policy explains how MEPTools.com uses cookies, browser storage, mobile identifiers, software development kits, pixels, tags, and similar technologies. It should be read together with our [Privacy Policy](/privacy) and [Terms of Service](/terms). ## 1. Who we are MEPTools.com provides web-based and mobile engineering tools, calculators, saved project workflows, and related services. For questions about this Cookie Policy, contact us at: ```text support@meptools.com ``` ## 2. What cookies and similar technologies are Cookies are small text files that a website stores on your browser or device. They help a website remember information about your visit, such as your login status, preferences, or settings. This Cookie Policy also covers similar technologies, including: - `localStorage`, `sessionStorage`, and IndexedDB; - mobile advertising identifiers and app identifiers; - pixels, tags, and conversion tracking technologies; - software development kits used in web or mobile apps; - consent management technologies; and - diagnostic, security, analytics, advertising, and measurement technologies provided by third-party services. For simplicity, this policy refers to all of these technologies as “cookies and similar technologies.” ## 3. How MEPTools.com uses cookies and similar technologies MEPTools.com uses, or may use, cookies and similar technologies to: - operate the website and app; - authenticate users and protect accounts; - remember user preferences such as dark/light mode, language, region, units, and selected tool settings; - remember cookie and privacy choices; - maintain saved sessions and project workflows; - support payments, subscriptions, and transactional services; - diagnose errors, crashes, and performance issues; - understand how users interact with MEPTools.com; - measure the performance of tools, pages, and features; and - support advertising, ad measurement, conversion tracking, and promotional campaigns where enabled. ## 4. Consent and cookie controls The consent mechanism on MEPTools.com is Google's certified Consent Management Platform (AdSense Privacy & messaging, IAB TCF v2.2 + Google Consent Mode v2). The consent message is shown to users in the EEA, UK, Switzerland, UAE, and Saudi Arabia, where prior consent is required. In other regions, non-essential technologies may operate without a prompt, subject to local law. Consent choices are applied through Google Consent Mode, which governs analytics and advertising storage. Browser Do Not Track / Global Privacy Control signals are honored as a signal to deny non-essential storage. You can change or withdraw your choice at any time via the "Cookie Settings" control in the site footer (where the consent message is available), or through browser/device controls. Rejecting or withdrawing consent for non-essential cookies will not disable strictly necessary technologies that are required to operate MEPTools.com, authenticate users, maintain security, process payments, prevent abuse, or provide services requested by the user. Consent choices are stored by the CMP client-side; clearing browser storage or switching device/browser resets them. ## 5. Categories of cookies and similar technologies The table below is category-based. Exact cookie, storage, SDK, or identifier names may change as browsers, operating systems, and third-party providers update their services. | Category | Purpose | Examples of providers or technologies | Consent / control | Retention | | ------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- | | Strictly necessary | Required to operate MEPTools.com, authenticate users, protect accounts, process payments, maintain security, prevent abuse, remember required consent choices, and provide services requested by the user. | Firebase Hosting, Firebase Authentication, Firestore, Google Cloud, Stripe, essential security, hosting, and consent technologies. | Always active because the service cannot operate properly without them. | Usually session-based or retained only for as long as necessary for account, security, legal, payment, fraud-prevention, or service operation purposes. | | Functional / preferences | Used to remember choices such as dark/light mode, language, region, units, last selected tool settings, saved inputs, and other user interface preferences. | MEPTools.com browser storage, Firebase-related storage, `localStorage`, `sessionStorage`, IndexedDB. | User-controlled where the consent mechanism provides this option or where required by law. | Up to 6 months, unless you clear your browser/app storage earlier or the setting is replaced. | | Analytics | Used to understand how users interact with MEPTools.com, which pages or tools are used, and how the service can be improved. | Firebase Analytics and related Google services, where enabled. | Governed by Google Consent Mode: denied by default in the EEA/UK/Switzerland/UAE/Saudi Arabia until the CMP records consent; granted by default elsewhere, subject to the same controls. | Retention depends on the provider settings, analytics configuration, and consent status. | | Performance / diagnostics | Used to identify errors, crashes, latency, failed requests, and technical reliability issues. | Sentry, Firebase, Google Cloud logs, and similar diagnostic tools. | Strictly necessary for reliability and security — not consent-gated. | Retention depends on the provider settings, diagnostic configuration, and legal needs. | | Advertising / marketing | Used to deliver, measure, limit, or personalize ads and promotional campaigns, including web and mobile advertising. | Google Ads, Google AdMob, Google advertising identifiers, conversion tracking, pixels, SDKs, and related Google advertising technologies. | Used only after consent where consent is required. Ad personalization depends on user choices, region, platform settings, and applicable requirements. | Retention depends on the provider, campaign settings, user device settings, applicable advertising controls, and consent status. | ## 6. Strictly necessary technologies Strictly necessary cookies and similar technologies are required for MEPTools.com to function properly. These may be used to: - allow you to sign in securely; - maintain your authenticated session; - protect accounts and services from misuse; - route traffic and maintain service availability; - process subscriptions, payments, invoices, and related transactional functions; - remember security-related settings; - remember required cookie or privacy choices; - detect fraud, abuse, or invalid traffic; and - comply with legal, accounting, fraud prevention, and security obligations. Because these technologies are required to provide the service you request, disabling them may prevent parts of MEPTools.com from working. ## 7. Functional and preference technologies MEPTools.com may use browser or app storage to remember your preferences and improve your experience. This may include: - dark/light mode; - language preference; - region or unit settings; - recently selected tool settings; - temporary tool inputs or drafts; - saved workflow preferences; and - cookie or privacy choices. Where MEPTools.com stores preference choices, the intended retention period is up to 6 months unless you clear the relevant browser or app storage earlier. Where consent is required for functional or preference technologies, MEPTools.com will provide controls through the consent mechanism or a similar settings control. ## 8. Analytics technologies MEPTools.com uses, or may use, analytics services to understand service usage and improve the website and app. These services may collect information such as: - pages or tools visited; - approximate usage events; - feature interactions; - device, browser, and operating system information; - app version or website version; - general technical and usage metrics; and - approximate geographic or regional information, depending on provider configuration. MEPTools.com uses, or may use, Firebase Analytics and related Google services as the service develops. Where consent is required, analytics technologies will not be used until the user has provided the required consent. ## 9. Performance and diagnostics technologies MEPTools.com uses, or may use, performance and diagnostics technologies to identify and investigate technical problems. These services may collect information such as: - error reports; - crash data; - failed requests; - latency and performance information; - device, browser, operating system, app, or website version information; - logs needed to investigate bugs, outages, abuse, or service reliability issues; and - technical metadata associated with errors or service operation. MEPTools.com uses, or may use, Sentry, Firebase, Google Cloud logs, and similar diagnostic tools. Error and crash monitoring (Sentry) is treated as strictly necessary for reliability and security, and is not consent-gated. Some essential security, fraud-prevention, infrastructure, and operational logs are likewise required to protect and operate MEPTools.com. If MEPTools.com later adds non-essential diagnostics that rely on cookies, identifiers, SDKs, or similar technologies, those would be controlled through consent where consent is required. ## 10. Advertising and mobile app technologies MEPTools.com may use Google Ads on the website and Google AdMob in mobile apps. These services may use cookies, local storage, mobile advertising identifiers, pixels, SDKs, or similar technologies to: - deliver ads; - measure ad performance; - prevent repeated ad delivery; - detect invalid traffic or abuse; - attribute conversions; - support promotional campaigns; and - support personalized or non-personalized advertising, depending on the user’s region, settings, consent choices, platform controls, and applicable requirements. Where legally required or required by an advertising platform, MEPTools.com will request consent before using advertising or marketing cookies, identifiers, SDKs, or similar technologies. If you reject advertising or marketing cookies, MEPTools.com may still show contextual or non-personalized ads where permitted, but those ads may be less relevant and may still be subject to platform and regional consent requirements. ## 11. Third-party services MEPTools.com uses third-party service providers that may place, access, or use cookies and similar technologies when their services are used on the website or in the app. These providers may include: | Provider | Role | | ----------------------- | --------------------------------------------------------------------------------------------------------- | | Firebase / Google Cloud | Hosting, authentication, database, analytics, logging, and infrastructure services. | | Stripe | Payments, subscriptions, checkout, billing, fraud prevention, and related payment services. | | Resend | Support and transactional email services. | | Sentry | Error monitoring, crash reporting, and diagnostic logging. | | Google Ads | Web advertising, campaign measurement, conversion tracking, and related advertising services. | | Google AdMob | Mobile app advertising, mobile advertising identifiers, ad measurement, and related advertising services. | | OpenAI | AI-related processing, if AI features are enabled in the future. | These providers may process data according to their own privacy policies, technical settings, service terms, and legal obligations. For more information, review the privacy information provided by the relevant provider. ## 12. Your choices You can manage cookies and similar technologies through the consent mechanism and through browser, device, operating system, and provider settings. Depending on your browser, device, app, region, and available MEPTools.com settings, you may be able to: - accept or reject non-essential cookies through the MEPTools.com consent mechanism; - manage cookie choices by category; - change or withdraw cookie choices later; - block or delete cookies through your browser settings; - clear `localStorage`, `sessionStorage`, IndexedDB, and cached site data; - reset or limit mobile advertising identifiers through your mobile device settings; - adjust ad personalization settings through Google’s advertising controls; - uninstall the mobile app to remove app-specific local storage; and - use browser privacy settings, private browsing, or tracking prevention features. Blocking or deleting cookies and similar technologies may affect login, saved preferences, tool settings, subscriptions, payment flows, analytics, diagnostics, advertising, and other parts of MEPTools.com. ## 13. Browser and device controls Most browsers allow you to: - see which cookies and site data are stored; - delete cookies and site data; - block third-party cookies; - block all cookies; - clear site storage; and - configure tracking prevention or privacy controls. Mobile devices may also allow you to reset or restrict advertising identifiers and app tracking settings. Because browser and device controls are controlled by third parties, MEPTools.com cannot guarantee that all functions will continue to work if you disable cookies, storage, identifiers, or app tracking features. ## 14. Regional and platform requirements Cookie, tracking, advertising, and consent requirements vary by country, region, platform, and provider. Some jurisdictions require prior consent before non-essential cookies, local storage, mobile identifiers, analytics, advertising, personalization, or similar technologies are used. Some advertising platforms may also require specific consent notices, consent signals, certified consent management platforms, or regional privacy messages before ads can be served or personalized. MEPTools.com may configure the consent mechanism differently by region, app platform, provider requirement, or legal requirement. This may include additional consent options, advertising partner lists, privacy messages, or controls for users in regions with specific requirements. ## 15. Changes to this Cookie Policy We may update this Cookie Policy from time to time to reflect changes in our services, technologies, providers, consent mechanism, legal requirements, platform policies, or business operations. When we make material changes to this Cookie Policy, we will update the `version` and `effectiveDate` fields shown at the top of this page. ## 16. Contact For questions about this Cookie Policy or how MEPTools.com uses cookies and similar technologies, contact: ```text support@meptools.com ```