Laying out the streets…STEP 1 OF 3

Open Trail Paper · Office #4,383 · Resting in Launch Grove

Open Source EInk Bike Computer

No one claimed this product, so its office left Tablif Town and became a tree in Launch Grove. Nothing about it is lost: this link, its neighbors and its story stay here. The office moves back with the same number and the same link when someone proves the site is theirs.

Visit opentrailpaper.com

What Tablif read on Open Trail Paper's site

Open Trail Paper describes itself as: “OpenTrailPaper — DIY e-paper bike computer”

What it is

Calls itself “bike computer”.

  • Calls itself: bike computer
“DIY e-paper bike computer”

Where it puts itself

Rules out “account”, “magnetometer” and “pressure sensor” and 2 more.

  • Says it will not: account · magnetometer · pressure sensor · +2
“There is no account or subscription.”
“No magnetometer.”

What it costs

A free tier, free forever.

  • Free plan: free forever
“There is no account or subscription.”

How it runs

A desktop app and mobile app for Android and iOS. Runs locally and works offline. Distributed through the App Store. Open source.

  • Kind: desktop · mobile
  • Runs on: Android · iOS
  • Runs where: on the device, offline
  • Distributed via: App Store
  • Open source: yes
“Firmware can be installed from a desktop Chromium browser over USB”
“The iOS and Android companions”

What it offers as proof

Live, no waitlist. Shows customer logos. Publishes docs.

  • Customer logos: yes
“There is no account or subscription.”
“Thank you to the organizations supporting OpenTrailPaper. RideCall ridecall.bike ↗ Hummingbird Fuels hummingbirdfuels.com ↗”

Sources

Tablif read these pages, last on 4 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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