Helder is Dutch for clear. We’re building it for the part of the day when your head isn’t.
Why we built this
Most days there’s a moment where your head gets foggy. You keep working, but everything takes more effort.
Where we are
- DevelopmentIn progress
- Early testing Now
Helder is being tested at
San José State University.
- Early accessWaitlist members first
- Launch2027
“Most days my head got foggy, and cold seemed to help. So I started building something that does it properly.”
It started with ice packs. Now the device is being tested at San José State University.
Sjoerd MemelinkFounder, Helder
Get in touch
[email protected]
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