# Product Description

> [!IMPORTANT]
> **The Core Principle**
> **There are no visible no's.**
> LustLink exclusively shows shared interests.

## What is LustLink?
LustLink is a SexTech web app for the safe and discreet exchange of sexual preferences. Instead of judging people, LustLink makes shared interests visible. It offers couples, dates, and singles a safe space to compare their desires without having to fear rejection.

## How does it work?
The principle is based on a "double opt-in of intimacy":
1. **Answering:** Each user independently and privately goes through a detailed questionnaire about their preferences and boundaries. The questions are intentionally kept gender-neutral and do not collect data on sexual orientation.
2. **Invitation:** Via a private link or a quick-scan QR code, a user links their profile temporarily or permanently with a partner.
3. **The Comparison:** Only mutual matches are displayed. Anything that one of the partners rejects or skips is not shown to the other person.

## The Comparison in Detail
LustLink uses a multi-level response system to optimally guide communication:
* **Yes / Must-Have:** Clear matches are presented to the partners as highlights *(see screenshots folder)*.
* **Maybe / Both:** If there is interest but still some uncertainty, the app specifically recommends an open, shared conversation.
* **No Answer / No:** These answers are strictly hidden during the comparison. **There are no visible no's**, preventing embarrassing situations or the need to justify oneself.

## Core Features
* **Protected Comparison:** Hiding rejections eliminates shame and pressure.
* **The LustScore:** A percentage-based compatibility value that shows at a glance how strongly preferences harmonize. The LustScore does not replace the detailed profile comparison. It serves as a playful icebreaker for conversations.
* **LustPair:** The option to permanently link up with a steady partner in the app to accompany the sexual evolution of the relationship long-term and synchronously.
* **QR Scanner:** For a quick, uncomplicated compatibility check on spontaneous dates.
* **Premium Evaluations (Outlook):** The ability to export detailed matches as a PDF – provided both partners explicitly consent.

## Who is LustLink not for?
LustLink is **not** a classic dating platform. 
* There are no public profiles.
* There is no swiping.
* There is no searching for strangers.
The focus is on communication and mutual consent. LustLink supports existing or developing relationships – not the search for strangers.

## Data Privacy & Security (Privacy First)
Discretion is the foundation of LustLink.
* **Data Minimization:** LustLink deliberately avoids public profiles and collects only the data necessary for the platform to function.
* **Platform:** LustLink is designed as a **Progressive Web App (PWA)**. The application runs quickly and securely directly in the browser (Mobile First) and does not require a cumbersome download from an app store.
