TrueDoor
Now field-testing in Exeter

The pin lands on the doorstep, not the postcode.

A navigation app built for parcel drivers, not commuters. It works out where a house actually is — then works with zero signal, because most of the country doesn't have any.

Access point picker map showing a Door pin and a separate Access pin marking the real vehicle entrance
Real screen, Exeter build Doorstep pin vs. real access point

Watch the product preview

Built around the driver's day.

A 69-second introduction to TrueDoor's direction: property locations, detailed addresses, road data and the entrance that matters.

Product preview · Includes planned features. Full in-app offline navigation and the complete planning workflow are still in development. Maps and screens are illustrative.

Read the narration

For delivery drivers, an address is only the beginning. TrueDoor is being built around the rest of the journey.

Bring in your stops. Check the details. Plan around departure times and delivery deadlines.

Property locations provide a point on the map. Detailed addresses add names, numbers and individual homes. Road data connects the journey. Access points identify the entrance you actually need.

A property can look close, yet the nearest lane may not provide access. This example shows two blocked approaches, then a usable route to the northern entrance. The final connection shows which property it serves.

The goal is to prepare your maps and route before departure, then navigate inside TrueDoor when the signal disappears. That offline experience is still in development.

TrueDoor. Built around the driver's day.


Why it exists

Most navigation gets you to the street. Not the door.

Standard mapping — including the tools built into most delivery systems — routes to the centre of a postcode. On a terrace that's a minor nuisance. On a farm track or a holiday park with no phone signal, it costs real minutes on every single stop.

What usually happens

You're dropped somewhere near the right postcode, hunting for a house number with a parcel in hand and no bars on your phone to fall back on.

What this app does instead

The pin sits on the actual property, sourced from Ordnance Survey address data. Set up once with signal; every stop after that works with none.


How it works

One download, then it's yours offline for good

01

Set up once, with signal

Pick your region and the app downloads local address and map data straight to your phone — a few minutes, done once.

Download regions screen listing UK areas such as Aberdeen, Birmingham and Bristol, each with its own Download button
02

Search, don't guess

Add a stop with a house number or name and postcode. The app matches it against real local address data, not a postcode centroid.

Quick Find screen with a field for postcode, house name or street
03

Hand off and go

Navigation launches in whichever app you already use — Google Maps, Waze or Apple Maps — pointed at the real doorstep.

Google Maps turn-by-turn navigation handed off from the app, routing to the pin near Cathedral Close, Exeter

What's in the trial

Built around a driver's actual round

Daily route list

Add stops, drag to reorder, mark each one complete, and see your progress count for the round at a glance.

History screen listing addresses selected earlier that day, each with a Removed status

History, for the one you missed

Realised three stops later that one was misdelivered? Jump straight back into navigation for it without re-typing the address.

Set access point map showing a Door pin and a separate Access pin on the road

Drop an access pin

For the gate, driveway or yard entrance that isn't the doorstep itself — set once, shared with every driver after you.

Nearby toilets list showing distance and accessibility for each result

Nearest toilet finder new

Pulled from a national public-toilet dataset, found offline using your phone's GPS. Small thing, real difference on a long round.

Works in four languages

English, Polish, Romanian and Punjabi, switchable in Settings. Built for who's actually driving these rounds, not just who wrote the app.

Scan a postcode

Point the camera at a label or a card and it reads the postcode straight off it, no typing needed with gloves on or in the rain.



Exeter field test

You're looking at one of the first real trials.

Exeter has genuine named address data loaded, not placeholder labels — a working slice of the app rather than a demo. If you're driving it this week, what you run into is exactly what shapes what gets fixed next.


How we're proving it

Two groups, the same rounds, a real comparison

It's easy for an app to feel faster without actually being faster. So alongside the trial, we're running a straightforward comparison: some drivers run their round with the app, others — a control group — run it exactly as they normally would. Comparing the two is what tells us whether the accurate pin genuinely saves time, not just whether it feels like it does.

Group B — control

Drives the round as usual: their normal navigation, no changes. This is the baseline everything else is measured against.

Group A — with the app

Same round, same area, using TrueDoor for every stop. Nothing else about their day changes.

What we're tracking: stops completed per hour, time lost to wrong turns or backtracking, and how each driver rates the difficulty of their round. Simple enough to log by hand after a shift — no extra app, no extra faff for drivers.

Where this goes next

Exeter is the start, not the ceiling

This trial is deliberately narrow on purpose — one area, one platform, drivers confirming stops by hand. Two things unlock the rest of it: an iOS build, and deeper integration with more mapping systems than a simple handoff. Neither changes what's core to the app — an accurate, offline pin — but both widen who can use it and how much friction disappears once they do.

One thing this depends on: TrueDoor gets you an accurate pin with zero signal, but it hands the final leg to Google Maps, Waze or Apple Maps — and if that app hasn't got the local area downloaded for offline use, it can't actually route you once signal drops. Downloading offline maps for your area in whichever app you navigate with isn't optional here; it's the other half of making the whole thing work end to end.
Crowdsourced, from three sides

The map gets better from whoever's closest to it

Right now, drivers are the only ones who can drop an access point. The plan is to open that up to whoever actually knows a property best:

Live in this trial

Drivers

Drop the access pin for a gate, driveway or yard entrance while out on a round — the fix that's needed right there, right then.

Planned

End users

A resident or business can log in on a free tier and set their own delivery preference or access point directly — no driver visit required to get it right.

Planned

Route managers

Someone overseeing a patch can correct access points in bulk ahead of time, using their own local knowledge, so drivers arrive with it already sorted.

Removing manual entry entirely

Pulling in a whole round — without the customer data

Every stop right now gets typed in by hand. The plan is to let a driver import their day's round directly from whichever carrier system they use — DPD first, other carriers after — but strip it down before it ever reaches the app: just the property name or number and the postcode. No customer names, no delivery notes, and none of the carrier's own pin or routing data comes across. TrueDoor looks up its own accurate pin from that stripped-down address alone, exactly as if it had been typed in by hand.

Any stop that comes through with no usable address at all — a real, if occasional, occurrence — gets flagged in the route list straight away, so it's caught at the depot rather than discovered on the road with no signal.

Once that data is flowing in cleanly, two further things open up: route order can be re-optimised using real road data and everything already learned about tricky access points, rather than just raw distance — and further out, the day's round could become the primary screen on an in-van CarPlay or Android Auto display, so a stop gets tapped straight from the dashboard.

Recognising good contributions

Access points that actually help earn something back

Not every edit is equally useful, so rewards are tied to impact rather than activity: an access point that gets used and confirmed accurate by other drivers over time earns the contributor "trusted mapper" status for that area, with perks like a badge or a free month. On top of that, a periodic shortlist of top verified contributors feeds a small prize pool, funded from subscription revenue.

Beyond access points

Flagging hazards, not just fixing pins

Alongside access points, the plan includes hazard tags tied to an address — dogs on site, a dangerous turning, anything worth knowing before you arrive — visible to any driver who reaches that stop after you.

For bigger sites

Holiday parks and multi-drop sites get their own sub-locations

A single site pin isn't enough when one address covers a shop, a laundry room and forty caravans. For sites like that, the plan is named sub-locations under one flagged site — tap the site, pick the right sub-location, navigate straight to that specific spot rather than the site's front gate.


Getting started

Installing takes about ten minutes

The app isn't on the Play Store yet, so it comes through Firebase App Distribution instead — Google's own tool for handing out test builds. That means one extra step compared to a normal app install: signing in once with a Google account so the link knows it's you.

  1. Open the install link on your phoneTap the download button above — best done on wifi, since a later step pulls down your local address data too.
  2. Sign in with a Google accountIf you haven't used this link before, you'll be asked for your email first, then to confirm via a short email invite. Any Google account works — it doesn't need to match your DPD email.
  3. Download the buildOnce signed in, you'll land on a page with the latest TrueDoor build — tap to download it.
  4. Allow the installAndroid will warn that installs from outside the Play Store are blocked. Tap Settings on that warning, then allow it for this download — a one-time setting, not a security issue.
  5. Grant location and storageThe app needs these to find your position and keep the offline address data on your phone.
  6. Pick your regionChoose Exeter on first launch. This downloads local address and map data once — after that, no connection needed for normal use.
  7. Add your first stopSearch a house number or name and postcode, hand off to navigation, and you're away.
Stuck partway through? A screenshot of whatever you're seeing is the fastest way to get help — send it to the contact below.