Trailhead · pre-orders open44°21′N 68°13′W
A whole survival library that still works when your phone doesn’t
The Index is a paper-like e-ink reader loaded with first aid guides, survival skills, offline maps and a full encyclopedia. It needs no internet and no signal, and one charge lasts far longer than a phone.
Ships March 2027 · one payment, no subscription
- Works with no internet, Wi-Fi or cell signal
- Reads like paper, even in bright sun
- Charges by USB-C, power bank or solar
Trailhead · elev. 1,240 ft
Your phone is the first thing to quit in an outage
When a storm knocks out the power, cell towers usually go quiet within a day and the internet goes with them. Your phone becomes a flashlight with a dying battery, right when you need to look something up.
The Index keeps the answers in your hand, with no signal needed.
What’s insideTrail system map
A whole library on one small screen, with one search box for all of it
It turns on straight into the library, with no apps and no setup. Here is where each trail leads.
The library menu, the first thing you see
First aid & medical
Treating cuts, burns, fevers and breaks when help is far away.
Water
Finding, filtering and making water safe to drink.
Food
Storing, preserving and growing food.
Shelter & fire
Staying warm, dry and safe.
Power & repair
Fixing, wiring and keeping things running.
Offline maps
Roads, trails and terrain, with no data connection.
Encyclopedia
An offline encyclopedia for everything else you want to know.
Your own files
Add your own PDFs, books and family documents.
How it worksFollow the blazes
It works the moment you switch it on
- Marker 1
Turn it on
It opens straight into the library.
- Marker 2
Search anything
One search box looks through every guide, map and article.
- Marker 3
Charge it your way
USB-C from the wall, a power bank or a small solar panel.
- WaterMaking water safe to drink
- WaterFinding water
- WaterFiltering water
- EncyclopediaWater
- Offline mapsTrails and terrain
One search looks through every guide, map and article at once.
Built for the days without power
An e-ink screen only uses power when the page changes, so the Index sips its battery while a phone burns through it. When it does need a charge, any USB‑C power bank or small solar panel will do.
- Wall chargerUSB-C
- Power bankUSB-C
- Small solar panelUSB-C
ComparedPick your route
How the Index compares with what is already in the drawer
For someone you love
A thoughtful gift for the people you worry about
It’s a calm, practical gift for parents, partners and grown kids, the kind that sits in a drawer until the day it really matters.
Ships March 2027 · one payment, no subscription
Plain answers to fair questions
Does it need internet or a signal?
No. Everything is stored on the device, so it works anywhere, with no Wi-Fi, data or cell signal.
How do I charge it?
With any USB-C charger, power bank or small solar panel.
Is there a subscription?
No. You pay once and the library is yours.
Can I add my own files?
Yes. You can add your own PDFs, books and documents.
Does it have GPS?
No. The offline maps show roads, trails and terrain, but it won’t show your live location. That also means it doesn’t track you.
When does it ship?
Pre-orders ship in March 2027. If that date ever changes, we’ll email you right away and you can choose a full refund.
Be the one who still has answers when the lights go out
Ships March 2027 · one payment, no subscription
Independent product. Not affiliated with or endorsed by the U.S. Army, FEMA, CDC, USDA, NOAA or USGS. Reference information only, not a substitute for professional medical care or emergency services.