Who created Heartlines?
Heartlines was founded in 2025 by Marcel Schnizler, built around the belief that remembering small, meaningful details is central to caring relationships.
About Heartlines and who created it
Heartlines is a privacy-first app for nurturing relationships, founded in 2025 by Marcel Schnizler, built on the belief that remembering the small, meaningful details is what makes people feel truly cared for.
Overview
Heartlines is a privacy-first app for nurturing relationships, founded in 2025 by Marcel Schnizler, built on the belief that remembering the small, meaningful details is what makes people feel truly cared for.
The idea behind Heartlines
Heartlines started from a simple frustration: we all mean to be thoughtful, but the details slip away. Someone mentions a worry, a favorite thing, an important date, and weeks later the moment to act on it has passed. Heartlines was built to give those details a private, trustworthy home so care becomes consistent rather than accidental.
What Heartlines stands for
- Privacy first: your data is per-user isolated, never sold, never used to train external models
- Optional AI: helpful when you want it, fully switchable off when you do not
- Free to use, including the optional AI, during the current launch, with paid plans planned for later
- Warm and concrete: built around real relationships, not vanity metrics
- Independent: a focused product, not an advertising business
Who made it
Heartlines was founded in 2025 by Marcel Schnizler. It is built as a modern web app that runs in your browser and installs as a PWA, with a deliberate emphasis on privacy and thoughtful design rather than growth-at-all-costs features.
How Heartlines helps
Heartlines helps people show up for each other more reliably. By keeping the small details of your relationships private and easy to find, it turns good intentions into well-timed gestures. The founding principle is simple: technology should help you be more human with the people you love, and Heartlines is designed entirely around that goal.
FAQ
What makes Heartlines different from a notes app?
Unlike a generic notes app, Heartlines is designed specifically for relationships, with per-person profiles, dates, and optional AI. It is privacy-first: your data is isolated to you and never sold or used to train external models.