This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Cairn — a companion for cancer treatment
A companion for cancer treatment, and the person beside you
Cairn keeps the ordinary things between cancer appointments — mood, reminders, calendar, a private journal — and lets the patient choose, switch by switch, what the person beside them can see. Plus a companion for 3AM, with limits it never crosses.
My mom had cancer. On a day she wasn't feeling OK, I missed a phone call, and with it my last chance to visit her. That was the worst day of my life. I built Cairn so the people who love someone in treatment know when things aren't OK, even when nobody says it out loud, and so there's someone to talk to at 3am, when it's hardest.
It works on one idea: you might not want your sister reading your journal, but you do want her to know when you've had a bad week. So sharing works switch by switch. Turn one off and it disappears from your companion's screen immediately, and they aren't told what you hid.
The demo at cairnai.de is the real app with an invented week in it. Try the three roles at the top (the patient, her sister, her oncologist) and flip a sharing switch to watch the other screens change. You get five messages with the companion.
What it won't do matters as much. It won't give doses, read results or guess at survival odds. Those questions get the same fixed answer every time, set in code and never improvised by the model.
Two questions for you:
If you've been a patient or a carer: what did you wish someone else could see, without you having to say it? If you're a clinician: would a flag like the one on Dr Vogel's screen help, or add noise?
We're raising a small pre-seed round. If that's relevant to you, there's an "I'm an investor" option on the site.
No comment highlights available yet. Please check back later!
About Cairn — a companion for cancer treatment on Product Hunt
“A companion for cancer treatment, and the person beside you”
Cairn — a companion for cancer treatment was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #421 on the daily leaderboard. Cairn keeps the ordinary things between cancer appointments — mood, reminders, calendar, a private journal — and lets the patient choose, switch by switch, what the person beside them can see. Plus a companion for 3AM, with limits it never crosses.
Cairn — a companion for cancer treatment was featured in Health & Fitness (83.4k followers), Privacy (11.4k followers) and Artificial Intelligence (481.6k followers) on Product Hunt. Together, these topics include over 173.8k products, making this a competitive space to launch in.
Who hunted Cairn — a companion for cancer treatment?
Cairn — a companion for cancer treatment was hunted by Farzad. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Cairn — a companion for cancer treatment stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Farzad
Hi Product Hunt — I'm Farzad, and I built Cairn.
My mom had cancer. On a day she wasn't feeling OK, I missed a phone call, and with it my last chance to visit her. That was the worst day of my life. I built Cairn so the people who love someone in treatment know when things aren't OK, even when nobody says it out loud, and so there's someone to talk to at 3am, when it's hardest.
It works on one idea: you might not want your sister reading your journal, but you do want her to know when you've had a bad week. So sharing works switch by switch. Turn one off and it disappears from your companion's screen immediately, and they aren't told what you hid.
The demo at cairnai.de is the real app with an invented week in it. Try the three roles at the top (the patient, her sister, her oncologist) and flip a sharing switch to watch the other screens change. You get five messages with the companion.
What it won't do matters as much. It won't give doses, read results or guess at survival odds. Those questions get the same fixed answer every time, set in code and never improvised by the model.
Two questions for you:
If you've been a patient or a carer: what did you wish someone else could see, without you having to say it?
If you're a clinician: would a flag like the one on Dr Vogel's screen help, or add noise?
We're raising a small pre-seed round. If that's relevant to you, there's an "I'm an investor" option on the site.