We build apps people actually love

Turning everyday frictions into tiny moments of delight. Powered by AI, crafted by two PhDs.

Explore Our Apps
Meet the Founders
From the team behind Skin Bliss
App Portfolio

Tiny bursts of everyday magic

Bliss Labs is a Barcelona-based studio founded by two PhDs, the duo behind Skin Bliss. Powered by AI, our apps span productivity, health, education, and developer tools, reaching over 3 million users worldwide.

fidelius
Developer Tools macOS

fidelius

Delete your .env file. A Mac app that keeps your API keys in the macOS Keychain, grouped by project. Your AI agents run commands through accio, and the values go straight to the command.

macOS Keychain Claude Code & Codex iCloud sync
Download
N-day Productivity

N-day

Every N days, handled. A recurring task tracker with flexible intervals, grace periods, and deep Apple integration including Siri Shortcuts and iCloud sync.

Flexible intervals Grace periods Siri & iCloud
Download
Biome Bliss Health

Biome Bliss

Your gut health, decoded. The first app that checks every food health claim against EU-verified scientific standards and connects your diet to your real health data.

EU-verified claims HealthKit AI gut guidance
Join Waitlist
Pattern Rush Games

Pattern Rush

Fast-paced offline pattern recognition game. Race to spot triples in this twist on the classic Set game with three difficulty levels and customizable themes.

3 difficulty levels Offline play Custom themes
Download
Fitness

Snack Move

Your crew drops in. The countdown hits zero. Everyone moves, together. 10-minute live workout sessions with the friends who actually keep you showing up.

Real-time sync 10-min sessions Crew accountability
Coming Soon
Education

Vino Tinto

Your personal AI language tutor providing structured lessons, coaching support, and adaptive learning to help you master Spanish at your own pace.

AI tutoring Structured curriculum Coaching
Learn More
Gradient Generator
Design Tools Open Source

Gradient Generator

Design complex GPU-accelerated gradients in-browser and export production-ready code for CSS, Tailwind, React Native, Skia, SwiftUI, SVG, and more. 6 gradient styles, 14 warp effects, and 5 material overlays.

GPU rendering Multi-platform export Warp effects
Try It
React Native Open Source

Emoji Burst

Performant emoji particle burst animations for React Native. Single GPU draw call via Skia Atlas, zero JS thread work, and object pooling with zero GC pressure.

Skia Atlas API 60fps UI thread Zero GC
npm
Claude Code Dashboard
Developer Tools Open Source

Claude Code Dashboard

A local web dashboard to visualize and manage Claude Code's plugins, MCP servers, hooks, and profiles. See exactly which tools load into each session and how many tokens they consume.

Token visibility Per-project toggles Plugin profiles
GitHub
The Team

Two PhDs building what they wish existed

We're a two-founder studio that takes everyday frictions and turns them into delightfully smart mobile experiences.

Our previous company, Skin Bliss, reached over 3 million users. At Bliss Labs, we're repeating the formula across new verticals.

3M+
Users reached
2
PhD Founders
BCN
Barcelona
Marvin Uhlmann & Maria Otworowska, Co-Founders of Bliss Labs

Marvin Uhlmann, PhD

Co-Founder, Bliss Labs

PhD in computational neuroscience and machine learning, trained at ETH Zürich, NUS Singapore and Max Planck. At Skin Bliss he built the engine that matches every skincare product to every user. At Bliss Labs he builds and trains new AI models.

Maria Otworowska, PhD

Co-Founder, Bliss Labs

PhD in computational cognitive science and AI. She built Skin Bliss end to end, from code and design to brand, and grew it to 3M+ downloads with no paid acquisition. At Bliss Labs she builds the products and runs distribution.

FAQ

Questions about Bliss Labs

What is Bliss Labs?

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Bliss Labs is an app studio in Barcelona, founded by Maria Otworowska, PhD and Marvin Uhlmann, PhD, and registered in Estonia as Bliss Labs OÜ. It makes mobile apps (N-day, Pattern Rush, Vino Tinto, Biome Bliss) and tools for developers who work with AI agents (fidelius, Claude Code Dashboard, Gradient Generator, Emoji Burst).

Who founded Bliss Labs?

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Maria Otworowska, PhD (computational cognitive science and AI) and Marvin Uhlmann, PhD (computational neuroscience and machine learning). They have worked together for thirteen years and co-founded Skin Bliss in 2020.

What did the founders build before Bliss Labs?

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Skin Bliss, a skincare app that matches products to each user's skin. It grew to 3M+ downloads with no paid acquisition and became one of the largest skincare apps worldwide.

How do I contact Bliss Labs?

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Email info@blisslabs.dev.