Privacy Policy

Privacy Policy of FlosysENG

Effective date: April 12, 2026

Preface
Welcome to FlosysENG (referred to as “we”, “us”, or “the Company”). This Privacy Policy explains how we collect, use, retain, share, and protect personal and usage data you provide or generate when using our engineering calculation website and related services. By using the Service you agree to the data practices described in this policy.

Scope of this Policy
This policy applies to the FlosysENG website, mobile interfaces, APIs, plugins or embedded calculation components, and related email, support interactions, and paid features. If you access the Service through a third party (for example, an enterprise customer or partner platform), that third party may have its own privacy policy — please review it as well.

Types of Data We Collect
User‑provided data

Account information: name, email address, company name, job title, and phone number if provided.
Billing and invoicing information: billing address and invoice details. FlosysENG does not store full credit card numbers; payments are processed by third‑party payment processors.
Support and communication content: messages exchanged with support or technical teams, bug reports, and requests.
Uploaded or stored files: design files, CSVs, or reports you upload for calculation or export; such files will be processed or stored according to your settings.

Automatically collected technical and usage data

Technical data: IP address, device type, operating system, browser, screen resolution, and language settings.
Usage data: visited pages, actions taken (for example which calculation was run, submitted parameters, calculation duration, whether reports were downloaded), error logs, and performance metrics.
Cookies and similar technologies: session cookies, preference cookies, analytics cookies, and functional cookies.

Calculation‑related data (special note)

Calculation inputs (for example flow, temperature, pressure, pipe dimensions, Cv) and generated outputs (for example P2, pressure loss, N2 equivalent flow) may be recorded to reproduce results, debug issues, provide support, and for billing or usage tracking if the Service is metered or point‑based.
Where feasible, calculation logs are anonymized or aggregated for analytics and product improvement.

How We Use Your Data
We use data for the following purposes:

To provide and maintain the Service: manage accounts, perform engineering calculations, generate reports (PDF/CSV), and enable downloads/printing.
For payment and subscription management: process orders, invoices, refunds, and subscription status.
For customer support: respond to technical issues and process support requests.
To improve and optimize the Service: analyze usage, test new features, fix bugs, and improve performance.
For security and fraud prevention: detect abnormal behavior, block abuse, and protect systems and user data.
For compliance and legal obligations: respond to lawful requests from authorities and retain records as required by law or tax rules.
For marketing (only with your consent): send product updates, promotional offers, or event invitations; you may unsubscribe or withdraw consent at any time.

Legal Basis (for EEA/European users)
If you are located in the European Economic Area (EEA), our legal bases for processing personal data include:

Performance of a contract: processing necessary to provide the Service you requested.
Legitimate interests: such as improving the Service, ensuring system security, and preventing fraud, provided these interests do not override your rights and freedoms.
Consent: for marketing communications or non‑essential cookies; you may withdraw consent at any time without affecting prior lawful processing.

Cookies and Tracking Technologies

We use cookies and similar technologies to maintain sessions, remember preferences, perform analytics, and enhance security.
You can manage or disable cookies via your browser settings, but disabling cookies may affect certain features (for example, saving calculation parameters or automatic login).
If the Service targets EU/UK users, we display a cookie consent banner and provide options to manage consent.

Third‑Party Services and Data Sharing
We may share data with third parties only as necessary and limited to the following categories:

Payment processors (e.g., Stripe, PayPal) to complete transactions.
Cloud hosting and storage providers (e.g., Hostinger, AWS, Google Cloud) to provide compute and storage.
Analytics and monitoring services (e.g., Google Analytics, Sentry) to analyze usage and errors.
Email and communication services (e.g., SendGrid, Mailgun) to send notifications or marketing messages (with your consent).
Legal or regulatory authorities when required by law or to protect our rights.

We enter into data processing agreements with third parties and require appropriate security measures. When data is transferred across borders, we use lawful transfer mechanisms (for example, standard contractual clauses).

Data Retention Periods
We retain personal data only as long as necessary for the purposes described or as required by law. Suggested retention practices (adjust to your operational needs and publish exact periods):

Account data: retained until account deletion or as required by law/tax rules (for example, 7 years).
Calculation records and reports: if you choose to save them, retained until you delete them or your account is closed; system logs may be retained 6–24 months and then anonymized or deleted.
System logs and error records: typically retained 6–12 months for debugging and security analysis.

Users may request export or deletion of their data; identity verification will be performed before fulfilling such requests.

Data Security
We implement reasonable, industry‑standard technical and organizational measures to protect data, including:

TLS/HTTPS encryption in transit.
Access controls for servers and databases.
Secure password hashing and storage.
Regular security scans and patching.
Principle of least privilege and logging/monitoring.

No online system is completely immune to risk. In the event of a data breach or major security incident, we will notify authorities and affected users as required by law. If you suspect a security issue, contact admin@flosys.tech immediately.

User Rights and Requests
Depending on your jurisdiction, you may have the following rights:

Access and obtain a copy of personal data we hold about you.
Correct inaccurate or incomplete personal data.
Request deletion of personal data in certain circumstances.
Request restriction of processing.
Object to processing based on legitimate interests.
Receive a portable copy of your data in a commonly used, machine‑readable format.

To exercise these rights, contact admin@flosys.tech and provide sufficient information to verify your identity. We will respond within a reasonable timeframe. If you are in the EU, you may also lodge a complaint with your local data protection authority.

Billing, Usage Tracking, and Transaction Records (if applicable)
If the Service uses point deductions, metered usage, or subscription billing:

We will track usage and record billing events. Usage records, invoices, and transaction logs are retained for accounting and dispute resolution.
If a billing or deduction error occurs, we will investigate and issue refunds or credits where appropriate.
Billing and deduction behavior (for example whether deduction occurs before or after a calculation) will be implemented according to system settings and disclosed in user documentation.

International Data Transfers
Our Service may involve third‑party providers located in other countries (for example cloud hosting, analytics, payment processors). When personal data is transferred outside your jurisdiction, we implement appropriate safeguards (for example standard contractual clauses or rely on providers with adequate protections). Contact admin@flosys.tech for details about specific transfers and safeguards.

Policy Changes
We may update this Privacy Policy from time to time. We will post the updated policy on this page and update the Effective date. For material changes, we will provide more prominent notice (for example email to account holders or a notice on the Service). Continued use after changes indicates acceptance of the updated policy.

Contact Information
If you have questions about this policy or wish to exercise your rights, contact:
Data controller: FlosysENG
Email: admin@flosys.tech