Coldopen by Altura ยท For founders
Your first users are already asking for it.
Coldopen finds people already asking for what you built, scores how well they fit, and drafts the first message. You send it, and Coldopen tracks who replies.
Get Coldopen freeHow it works
Find
Fresh public posts from Reddit, Hacker News, Product Hunt and X where people ask for what you offer.
Score
Each person gets a fit score and one line on why they match.
Draft
A short first message is written for each one, ready to edit.
You send
You send it yourself. Nothing goes to a stranger automatically.
Sound familiar?
- You shipped, and now you need the first ten people who actually want it.
- Searching Reddit and X for the right posts eats the hours you meant to build in.
- A blank message box makes reaching out feel harder than building the thing.
The kind of post Coldopen finds
is there a simple tool that turns customer calls into a weekly summary? would pay for this
A public post on Reddit, 3 hours ago
First message drafted for you to send:
saw your post about call summaries. i built something that does exactly that each friday. want to try it free this week?
Example for illustration.
What you get
- Fresh people every day who asked for what you built, with a fit score and one line on why.
- A short first message drafted for each one, easy to edit.
- You send every first message yourself. Coldopen tracks who replies.
- Free to start.