Privacy Policy

LifeByLogic ("we," "us," or "our") is an independent publication of interactive tools operated by Nexus Decision Systems LLC, an Ohio limited liability company headquartered at 6545 Market Ave. North, STE 100, Canton, OH 44721, USA. Nexus Decision Systems LLC is the data controller responsible for personal data processed through lifebylogic.com and its subdomains.

For questions about this policy or how we handle data, contact us at hello@lifebylogic.com. For inquiries about the parent company, see nexusdecisionsystems.com.

We deliberately collect as little as possible, and we keep two things clearly separate: the free interactive tools, which run on your device, and the optional features — an account, the newsletter, premium reports — that need a server. Here is the complete picture.

• Your inputs to free tools: processed in your browser by JavaScript on your device. They are not transmitted to us and are gone when you close the tab.
• Server logs: our host (Cloudflare) keeps short-term request logs — IP address, browser type, pages requested — for security and performance. These are not linked to your identity.
• Aggregate analytics: Google Analytics 4, with IP anonymization enabled, tells us in aggregate which pages and tools get used. We do not attempt to identify individual visitors.
• Your email, if you subscribe to The Logic Letter newsletter.
• Your account details, if you create an optional account — your email address and the results or settings you choose to save.
• Purchase details, if you buy a premium report — your email, billing and tax information handled by our payment processor, a record of what you bought, and the assessment answers needed to generate that specific report.
• A privacy-preserving signal for the “like” button — a one-way hashed value derived from your network address, used only to stop the same person counting a reaction twice. It does not identify you and cannot be reversed.
• Anything you email us — kept only as long as needed to handle your message, then deleted on request.

What we do not do: we do not sell or rent your data, we do not run advertising networks, retargeting, or behavioral ad pixels, and we do not build marketing profiles of you.

Every free calculator and assessment — the Brain Age Index, the Sleep-Cognition Optimizer, the personality and screening tools, and the rest — runs entirely in your browser using client-side JavaScript. You enter inputs, the computation happens on your device, and the result appears on your screen. Nothing about your answers is sent to a server.

You can verify this yourself: open your browser’s developer tools, switch to the Network tab, and use any free tool. You will see no outbound request carrying your input data. (Premium reports work differently — see “Premium reports and payments” below.)

You can use almost everything on LifeByLogic without an account. If you choose to create one, we store your email address and the results, settings, or saved tools you decide to keep — so you can return to them, and so we can generate a personalized newsletter edition from your own results if you opt in. Some account features are part of LifeGraph+, an optional paid subscription described under “Premium reports and payments” below. You can edit or delete your saved data, or close the account entirely, at any time by writing to hello@lifebylogic.com. Keeping your login credentials secure is your responsibility.

Some in-depth reports are paid, one-time products — for example the Attachment Style Decoder, the Career Choice Signature, The Sixteen, and several Family Lab reports. We also offer LifeGraph+, an optional subscription billed monthly or yearly that renews automatically until you cancel.

Payment is processed by Stripe — we never see or store your full card number; for a subscription, Stripe keeps your payment method on file to bill the recurring charge until you cancel. To build a report, the assessment answers you provide for it are sent to our server, used solely to generate your personalized document; the finished report is then stored so you can download it again and is delivered to your email through Resend. We do not use your purchase inputs to advertise to you, and we never sell them.

For pricing, billing, cancellation, and our refund policy, see the Terms of Use.

If you subscribe to The Logic Letter, we collect only your email address and use it only to send you the newsletter — and, if you opt in, a personalized edition based on your own results. Every email includes an unsubscribe link, and we never share or sell the list.

Analytics cookies. Google Analytics 4 sets first-party cookies (typically _ga and _ga_DHQD28QKCF) to tell unique visits apart. IP anonymization is enabled, the data is used only in aggregate, and these cookies expire after 24 months. To opt out across all websites, install the Google Analytics Opt-out Browser Add-on.

Functional cookies. If you sign in or save a preference such as dark mode, we use a small number of strictly-necessary cookies to keep you signed in and remember that choice. During checkout, Stripe may set its own cookies to process payment and prevent fraud.

We do not use advertising cookies, retargeting tags, social-media pixels, or behavioral ad tracking.

We rely on a short list of trusted providers to run the site. Each has its own privacy policy governing how it handles data.

• Cloudflare — hosting, security, edge compute, and storage for premium reports. See Cloudflare’s Privacy Policy.
• Stripe — payment processing and fraud prevention for premium reports. See Stripe’s Privacy Policy.
• Resend — sends the newsletter and delivers purchased reports and our email replies. See Resend’s Privacy Policy.
• Google Analytics — aggregate, IP-anonymized visit measurement. See Google’s Privacy Policy.

We do not embed social-media widgets or advertising networks that would expose you to additional third-party tracking.

We explicitly permit AI crawlers — including GPTBot (OpenAI), ClaudeBot (Anthropic), PerplexityBot, Google-Extended, and similar — to index our publicly-available content. This is a deliberate choice: when AI systems cite our methodology, our work reaches more people.

These crawlers only access public pages. They cannot reach your inputs to free tools (which never leave your device), nor anything behind your account or a purchase.

For the limited personal data we do hold — a newsletter email, account details, purchase records, or past correspondence — you can ask us to access, correct, export, or delete it. Email hello@lifebylogic.com and we will respond within 30 days.

If you are in the EEA or UK (GDPR): you have the right to access, rectify, erase, restrict, or port your personal data and to object to its processing, and to lodge a complaint with your national data protection authority.

If you are in California (CCPA/CPRA): you have the right to know what personal information we collect, to request its deletion, to correct it, and to opt out of any sale or sharing of it — and we do not sell or share your personal information. We will not discriminate against you for exercising these rights.

We keep each kind of data only as long as we need it:

• Newsletter email: until you unsubscribe.
• Account data: until you delete your account or ask us to remove it.
• Premium reports and purchase records: reports remain available to you while your access is active or until you request deletion; transaction and tax records are kept for as long as applicable tax and accounting law requires.
• Server logs: short-term, on Cloudflare’s standard schedule.
• Analytics: retained according to our Google Analytics configuration.
• Email correspondence: deleted on request.

LifeByLogic is intended for adults. Our tools are not directed at children under 13, and we do not knowingly collect information from them. Creating an account or buying a premium report requires you to be an adult in your jurisdiction. Some tools — for example, the parenting tools in the Family Lab — are written for an adult to use about a child; they are completed by the adult, not the child. If you believe a child has provided us with personal information, contact us and we will delete it promptly.

The tools on this site — including the Brain Age Index, the screening and assessment tools, and all reports — are educational decision-support tools, not medical, psychological, financial, or legal advice. They do not diagnose, treat, or prevent any condition, and they are not a substitute for a qualified professional. See our Disclaimer.

Inputs to free tools are processed only on your device. For premium reports, your inputs are processed on our server solely to generate your report. We are not a HIPAA-covered entity, and the data you provide is not “protected health information” in that legal sense — but we still treat it carefully and never sell it.

We may revise this policy — for example, when we add a feature, work with a new provider, or to reflect a change in the law. The “Last Updated” date at the top of this page reflects the most recent change, and we will announce material changes prominently on the site.

Continued use of the site after an update constitutes acceptance of the revised policy.