I built a super simple collaborative to-do app (no signup, just share a link)

I’ve been building a small side project called **Lystta**. It is a fast, no-friction way to create and share to-do lists with anyone.

The idea came from a simple frustration: most to-do apps feel like an overkill when you just want to quickly make a list and share it with someone.

Key idea

No accounts, no installs, no permissions. Just open and start collaborating.

What it does

• Create a list instantly (no signup, no forms)
• Optional password protection for private lists
• Works on mobile + desktop (browser-based)
• Share it via link or QR code
• Anyone with the link can:
• Add/edit tasks
• Assign labels
• Set due dates
• Mark things as done

Why I built it

I kept running into situations where I needed:

• Something faster than Notion / Trello
• More collaborative than Notes
• Less friction than apps that require everyone to sign up

So I built the simplest version of that.

Other use cases I had in mind

These are some other the use cases I can see the app helping in with:

• Planning trips with friends
• Sharing chores with a partner
• Group projects / small teams
• Personal daily planning

Link: 👉 lystta.com

Would really appreciate feedback on:

• First impression / UX
• Anything confusing or missing
• Real use cases you’d want this for
• Whether “no signup” is actually valuable or not

Happy to answer any questions or share more details