Indoor navigation apps for large facilities: how to choose one

Buyers often begin an indoor navigation app search by asking which positioning technology is best. The better first question is what a visitor must be told at each point of a visit, because that answer decides how much technology a venue needs and how much upkeep it signs up for.

An indoor navigation app, sometimes called an indoor navigation system, gives visitors the venue’s own map, a search box and a walking route. Some also show a live dot for where the visitor stands, which depends on what the venue installs and is where the cost sits.

• “Indoor GPS” is a nickname: indoors, an app needs another way to know where a visitor is, or it shows a map and routes only.
• Start from the question a visitor needs answered (which floor, which room, which turn, and what a wrong turn costs), not from the most precise technology.
• QR codes, NFC taps, Wi-Fi, Bluetooth beacons and ultra-wideband form a ladder: each step toward a live dot adds equipment, survey or upkeep.
• The map, and the people who keep it current, decide whether the app is still right a year later.
• Ask for consent, collect the minimum, and keep the first pilot small.

Why Google Maps stops at the door, and why the usual shopping list falls short

Outdoors, GPS reads signals from satellites, and the venue has nothing to install. Walls, floors and roofs weaken those signals, and GPS cannot tell which level of a building you are on. So “indoor GPS” is not one technology.

Some apps skip that part and offer a floor map with routes, where the visitor picks their own starting point. That is a fair product, but a different purchase from live indoor positioning.

A common shopping list compares precision and price, which rewards the biggest number. Visitors do not ask for centimeters. They ask which floor, which wing and where next, usually in a crowd, short of time and new to the place. The map has to be the venue’s own, and it has to stay true.

A visit also starts outside, so the better apps hand over from the parking lot to the front door; see parking navigation and visitor confidence.

How indoor positioning works, and how the options compare

A phone can find itself indoors in three broad ways.

Wi-Fi, Bluetooth beacons, UWB, NFC or QR

Each option trades what a venue installs against what the app gets: a position at one spot, or a live dot. The comparisons are general, not measured, because results change with every building; ask vendors for results in a building like yours.

Wi-Fi has a catch on phones. Apple’s technote TN3111 says iOS has no general-purpose Wi-Fi scanning API, so an iPhone app cannot simply read nearby access points the way fingerprinting needs. Ask any vendor how its Wi-Fi positioning works on both iPhone and Android. Ultra-wideband also needs a chip in the phone, as Apple’s Nearby Interaction documentation notes.

How does QR-code indoor navigation help guide people inside large facilities?

A QR code at a known spot, say beside the lifts on level two, tells the app exactly where the visitor is standing. The visitor scans it, the app places them on the map, and the route starts from there. There are no transmitters, batteries or surveys, and codes are easy to move.

The limit is what happens between codes: no moving dot, and visitors must choose to scan. Codes earn their place at entrances, lift lobbies and gallery doors. NFC works the same way with a tap in place of a scan; the NFC-enabled experiences page shows how a tap can open exhibit content too.

What is the most accurate indoor positioning system for large venues?

It depends on the technology and on how well it is installed, mapped and kept up, so no system is the most accurate everywhere. The methods built for fine positioning, ultra-wideband and Bluetooth direction finding, both need dedicated fixed hardware and a phone that supports them. The Bluetooth SIG lists airports, museums and convention centers among the indoor navigation uses of direction finding. Beacons and Wi-Fi are coarser and usually cost less to install. This guide gives no accuracy figure, because a number without its building tells you little.

Precision you do not need is money wasted, and a visitor choosing between two galleries needs the right floor and the right wing. But the question a visitor needs answered can be demanding, so ask before you settle on a rung:

• Does anyone depend on turn-by-turn guidance where a wrong turn is costly or hard to recover from, such as a blind or low-vision visitor in a large hall?
• Will content or alerts trigger by position, for example at an exhibit as someone approaches?
• Is the space so dense that a rough area would send people to the wrong door?

A yes to any of these moves the answer up a rung. Finding staff or equipment is a different product from visitor navigation, with its own consent questions.

Four things to settle before you choose a technology

1. The question to answer

   Write down what a visitor must be told: the floor, the room, the next turn. That sets the precision you need.

2. The cheapest method that answers it

   Three questions narrow the method: is the venue mostly outdoors, do visitors need a live dot, and can you install and keep up hardware? The chart below follows them.

3. The upkeep you can sustain

   Someone must reprint codes, change batteries or re-survey Wi-Fi, and edit the map when an exhibit moves.

4. Who it must work for

   Visitors who cannot use stairs need step-free routes and lifts, not the shortest line. Others need their own language, or a map that still opens when signal fades.

When an app is a poor fit

A small single-floor building with clear signs and staff at the door may not need one. A venue with nobody to keep the map current should think twice, because an out-of-date map misleads. Digital wayfinding also complements signs and staff; some visitors will never open an app.

Where indoor navigation helps most

Malls, airports, hospitals and campuses share the problem; see indoor positioning for campus navigation.

What is the best indoor mapping software for large venues?

No product is best for every venue. The decisive test is who edits the map when an exhibit moves, and how fast the change reaches visitors. In a demo, ask the vendor to move one exhibit while you watch, then check it on a phone. Beyond that, look for:

• A floor plan for every level, with places, photos, hours and accessibility notes attached.
• Routes that respect stairs and lifts, and offer step-free options.
• Editing by your own staff, without a developer.
• Languages and offline use, where your visitors need them.

Privacy and consent

Location can count as personal data, and in some places as sensitive data, and the rules differ by country and, in the US, by state. Check with your own counsel before you collect it. A good setup asks permission and takes only what the method needs. Scanning a QR code or tapping an NFC tag is a deliberate act. GPS and some beacon setups need the visitor to allow location on their phone, and the app should request only what the experience requires.

Venues should say plainly what is collected and keep analytics aggregate: popular places and common searches, not named people. Pigeon-Tech’s visitor analytics page takes the same line: useful insight does not need to identify an individual, and many cases rest on aggregated or anonymized data.

Who installs indoor navigation in large public venues?

A typical split among several parties:

Where Pigeon-Tech fits

Pigeon-Tech’s digital wayfinding app brings interactive maps, points of interest and route guidance to indoor and outdoor venues, and where a venue is set up for it, it can show visitors a live “you are here” dot indoors. What that takes depends on the building and the project. A first conversation can settle which question visitors need answered, whether a live dot is needed, and who will edit the map.

Pigeon-Tech also offers offline maps, defined for each deployment, and NFC touch points. Campuses and stadiums are markets Pigeon-Tech serves: see educational institutions and stadiums.

Frequently asked questions