This Privacy Policy explains how Decent4 ("we", "us", "our"), operator of MarketMaster.dev (the "Service"), collects, uses, and shares information about you. By using the Service you agree to this Policy. If you do not agree, please do not use the Service.
The Service is operated by Decent4, located in the United States. For any privacy question or request, contact us at [email protected].
| Category | Examples | Why |
|---|---|---|
| Account data | Email address, a securely hashed password (scrypt — we never store your plaintext password) | Create and secure your account |
| Newsletter / signups | Email address you submit to our signup form | Send updates you ask for |
| Content you submit | The pillar content, notes, and prompts you paste into the studio; generated assets and packages you save | Provide the core generation features |
| Connected-service credentials | API keys / tokens for your own Mailchimp, Buffer, Slack incoming webhooks, automation webhooks, or Google Search Console (OAuth refresh token) | Deliver to the tools you connect, on your instruction. Stored encrypted at rest (AES-256-GCM). |
| Billing data | Subscription status, plan, and price identifiers | Provide paid features. Payments are processed by Stripe (see §4); we do not receive or store your full card number. |
| Usage / abuse-prevention | Generation counts per billing period; short-lived rate-limit counters keyed by IP | Enforce plan limits and prevent abuse |
| Analytics & cookies | See §3 | Understand and improve the Service |
We use two kinds of cookies / similar technologies:
mm_cookie_consent
value in your browser storage and reloading.We do not sell your personal information. We share data with vendors who process it on our behalf to run the Service:
| Provider | Purpose |
|---|---|
| Vercel | Application hosting |
| Neon | Database (accounts, subscriptions, saved packages) |
| Stripe | Payment processing for subscriptions |
| Anthropic (Claude) | AI text generation on the content you submit |
| OpenAI / Google (Gemini) | AI image backgrounds, when that feature is used |
| Search Console data (only after you connect it via OAuth) | |
| DataForSEO | Keyword-volume lookups for a topic you analyze |
| Resend | Transactional email (e.g. password reset) |
| Google Analytics, DataFast | Product analytics (consent-gated) |
| Mailchimp / Buffer / your webhook | Only when you connect them and ask us to deliver to them |
We may also disclose information to comply with law, enforce our Terms, or protect rights and safety.
Content you paste into the studio is sent to our AI providers to generate your assets. We do not use your content to train our own models. Each provider processes it under its own terms; if you bring your own API key, your content is sent using that key.
Depending on where you live (e.g. under the GDPR in the EU/UK, or the CCPA/CPRA in California), you may have the right to access, correct, delete, or export your personal data, and to object to or restrict certain processing. To exercise any right:
We will not discriminate against you for exercising these rights. We do not sell or "share" personal information for cross-context behavioral advertising.
We keep personal data for as long as your account is active or as needed to provide the Service, then delete or anonymize it, except where a longer period is required for legal, accounting, or abuse-prevention purposes. Deleting your account removes your data as described in §6.
We use industry-standard safeguards: passwords are hashed with scrypt, connected-service credentials are encrypted at rest (AES-256-GCM), sessions are signed, and traffic is served over HTTPS. No method of transmission or storage is perfectly secure, so we cannot guarantee absolute security.
We operate in the United States and our providers may process data there and elsewhere. Where required, we rely on appropriate safeguards for cross-border transfers.
The Service is not directed to children under 13 (or the minimum age in your jurisdiction), and we do not knowingly collect their personal data.
We may update this Policy from time to time. Material changes will be reflected by updating the date above and, where appropriate, by additional notice.
Decent4 — [email protected]