About SLIK

We believe privacy shouldn't be a luxury. SLIK makes end-to-end encrypted photo backup accessible, beautiful, and fun for everyone.

Our Mission

At SLIK, we're building the next generation filesystem. A file system that is end-to-end encrypted, has multi-device sync, in-built sharing, cloud backups, file versioning with disaster recovery built in. As part of the next generation file system, you get to choose which data and files AI should have access to.

We all work with data and files every single day. From Photos, Documents, PDFs, Web pages, research documents, and more. They're either hosted and controlled by companies, or are not end-to-end encrypted, or are used for AI training—and we really don't know how policies change.

The new age of AI has made it even more unclear as to what data and files are being processed locally, and what are going to be used for AI model training. Or in other words—the Terminator - Judgement Day is probably nearer to our lives than we know. SLIK is the ONLY path so that we retain control to our lives and data and files that have deeply personal information.

End-to-End Encrypted

Military-grade encryption on all your data and files

Multi-Device Sync

Seamless access across all your devices

AI Control

You choose which data and files AI can access

Secure Sharing

Built-in sharing with version control

Our Values

The principles that guide everything we do at SLIK

Privacy by Design

We build privacy into every feature from day one. Your data is encrypted before it ever leaves your device, and we never have access to your photos.

Human-Centered

Technology should serve people, not the other way around. We design SLIK to be intuitive, beautiful, and accessible to everyone.

Open & Transparent

We believe in transparency. Our security practices are open, our policies are clear, and we're always honest about how we work.

Our Journey

Mar 2020
Rainbow Labs Inc. incorporated.
A week later, the COVID-19 pandemic hit.
Jan 2021
The founders started exploring the space of privacy of photos and files.
Feb 2021
The end-to-end encryption algorithm is born that allows multi-device sync and sharing.
Dec 2021
HN Post for SLIK Safe goes viral. Trending on Hacker News.
Jan 2022
Raise $3.5M pre-seed investment from angels like IDEO, Balaji Srinivasan, and 15+ investors.
Nov 2022
Iteration 2 failed. Product design and development re-started.
Aug 2023
Iteration 3 failed. Product design and development re-started.
Oct 2024
Product grows to 25K MAU
Feb 2025
Iteration 4 failed again. Threw away everything other than the end-to-end encryption algorithm.
Jun 2025
Kick-off iteration 5. Focussed on Photos first.

The Roadmap Ahead

Building the future of data and files, starting with Photos

1

Phase 1: Private Photos Vault

Build SLIK.so a Private Photo Vault for all your photos.

Platforms: iOS, macOS, iPad OS
2

Phase 2: Universal File Support

Extend SLIK.so to support a variety of data and files like PDF, Documents, etc. and launch in a separate app.

Platforms: iOS, macOS, iPad OS
3

Phase 3: On-Device AI Integration

Integrate on-device AI for macOS devices for data and files

Platforms: iOS, macOS, iPad OS
4

Phase 4: Open Source

Make codebase OpenSource when SLIK hits 100M monthly active users

About Rainbow Labs

SLIK is developed by Rainbow Labs Inc., a privacy-focused technology company based in San Francisco. We're a team of security experts, designers, and engineers who are passionate about making privacy accessible to everyone.

Founded with the belief that privacy is a fundamental human right, we're committed to building tools that put users in control of their data while delivering exceptional user experiences.

Rainbow Labs Inc.

2261 Market St. STE 5460

San Francisco, CA 94114