Travel connectivity, explained
RoamBridge is a connectivity planner that runs entirely in your browser. Build a multi-stop plan with explicit assumptions, compare offers you actually found, rehearse the handoff, and carry an offline fallback - before you ever board.
How it works
Each trip stop carries destination, arrival, days, and expected daily use. The plan states its assumptions instead of hiding them in a recommendation.
Enter offers you located yourself. RoamBridge calculates them against your trip estimate - and never labels an undated price "live."
The activation runbook is a timed checklist around each arrival. The resilience lab rehearses signal failure. Completion is manual evidence, never a claim that a carrier step succeeded.
Today command view
One screen for the current moment: trip phase, the next tasks, readiness, quote health, and on-the-ground usage. Call-home windows compute the time overlap between you and home.
The next tasks in the runbook, surfaced by where the trip actually is.
What is done, what is open, and what the trip still assumes.
Time-overlap strips show when both ends are awake - computed, not guessed.
Trip planner
Destination, arrival date, days, and expected daily use per stop. A departure countdown and day-by-day calendar keep the plan concrete.
Expected daily use drives the data estimate the comparisons and burn-down calculate against.
Plan comparison
Enter the offers you found - provider, price, data, validity. RoamBridge calculates each against your trip estimate and shows its working. An undated price is never presented as current.
Comparison runs on prices you found and dated, not on a feed you have to trust.
A quote without a date is labeled as what it is: a number you wrote down once.
The Today view tracks whether your comparison still covers the trip as planned.
Activation runbook
Build the device-local steps in order, timed around landing. Rehearse them before departure, not at the arrivals hall.
Checking a box records that you did the step. It never claims a carrier activation succeeded - only a network can say that.
Usage ledger
Log what you actually used. The ledger charts the burn-down, measures pace across the logged span, and estimates when the plan runs out - so a top-up decision happens before the dead zone.
Date, MB used, cost. The chart is drawn from your entries, not from carrier telemetry.
Burn-down projects the exhaustion date from your measured pace, even before the trip starts.
Once traveling, the command view folds current usage into readiness.
Resilience lab
Compare connectivity strategies across the whole trip and rehearse the failure cases. The offline packet - your fallback - prints and travels with you.
User-entered strategies weighed against the whole itinerary, not one leg at a time.
What happens when the SIM is dead at immigration? Rehearse it now, while the answer is cheap.
Print the offline packet: the plan, the runbook, the emergency fallback - on paper, in the bag.
Local by default
RoamBridge has no server, no account system, and no analytics. Stops, quotes, runbooks, and usage live in local storage, export as JSON, and print as an offline packet. Delete the workspace and it is gone - because it was only ever yours.