You can turn an iPhone into a taxi meter by installing a GPS meter app, entering the fare rules for your service, allowing location access, and testing the calculation on known routes. The phone then uses GPS location updates to measure the trip while the app applies your base fare, distance rate, time or waiting rate, and permitted extras.
That is the technical answer. The professional answer has two extra parts: you must verify that the setup produces reliable results, and you must check whether your local transport authority permits a phone-based meter for the work you do. Some places require certified, inspected, sealed, or passenger-visible hardware even if an app can calculate the same pricing formula.
What you need before the first trip
Prepare these items before relying on the phone during paid work:
- an iPhone that supports the app’s minimum iOS version;
- a stable dashboard or windscreen mount that does not block your view;
- an in-car charger suitable for long GPS sessions;
- the official fare or your documented private-service pricing;
- reliable location services and a clear view of the sky where possible;
- a plan for receipts and payment records;
- confirmation of the rules in every jurisdiction where you operate.
Meterly currently requires iOS 18 or later. Apple’s listing also warns that continuous background GPS use can reduce battery life, so power and mounting are operational requirements rather than afterthoughts.
Step 1: write down the complete fare formula
Do not begin with only a per-mile or per-kilometre amount. A real fare can include several parts:
Fare = base or minimum + distance charge + time or waiting charge + approved extras − discounts
Your tariff may also use distance tiers, a waiting delay, a night multiplier, an airport charge, a booking fee, or a fixed price for a particular service. Collect the exact values and the units before entering anything into the app.
If you set your own commercial rates, calculate a sustainable price instead of copying another driver. The taxi meter rate guide explains how to include vehicle cost, unpaid mileage, waiting, and target earnings.
Step 2: install Meterly and create a fare
Download Meterly from the App Store, open the app, and create the fare or Trip option you intend to use. Enter the base or minimum amount, distance rate, and time or waiting rate. Add a tier only when the price genuinely changes after a threshold. Add surcharges only when they are allowed and clearly understood by the passenger.
Use a name that makes the choice obvious before you start driving. Examples include “Standard Metered,” “Airport Transfer,” or “Executive Hourly.” Driver-facing clarity is more useful than a vague name such as “Fare 1.”
If you run more than one service, create a separate Trip option for each pricing method. That reduces the risk of starting a job with the wrong rate.
Step 3: allow the location access the meter needs
A GPS meter cannot measure a route without location data. Follow the iPhone permission prompt and enable the access required for active and background trip tracking. Keep Precise Location enabled while testing, because reduced accuracy can make route measurement less reliable.
Before the first road test:
- confirm Location Services are enabled;
- disable Low Power Mode for the test if it limits background behavior;
- connect the phone to power;
- place it securely with a clear GPS view;
- close any navigation or battery-intensive apps you do not need;
- wait until the app has a stable location before starting.
Never interact with detailed settings while the vehicle is moving. Configure the fare while parked and use only safe, legal controls during a trip.
Step 4: test a known route before taking payment
Run at least three tests: a short urban route, a longer open-road route, and a route with genuine slow or waiting time. Compare the app’s distance and duration with a trusted reference. Confirm that the base fare appears once, the distance unit is correct, the time rate activates as expected, and every tier changes at the correct threshold.
Also test interruptions that reflect real work:
- lock and unlock the iPhone during the trip;
- briefly move another app to the foreground;
- drive through an area with weaker reception;
- pause only if your fare policy requires it;
- end the trip and inspect the saved route and breakdown.
If the result is wrong, stop and correct the fare or device setup. Do not hide a mismatch with a manual extra. The root problem is usually an incorrect unit, threshold, time rule, permission, or GPS condition.
Step 5: make the passenger-facing workflow clear
Before moving, confirm the service and fare basis with the passenger. Keep the screen visible where local rules and safe mounting allow. At the end, review the total and any extra before accepting payment.
With Meterly, you can take a Square payment or record cash or another payment method. The completed trip can produce a receipt with the fare breakdown, trip details, business name, and route map. That record is useful for the passenger and for your own reconciliation.
For more detail, read the taxi receipt and invoice app guide.
A pre-shift iPhone meter checklist
Use this quick check before working:
- The iPhone is mounted securely and connected to power.
- Location Services and Precise Location are available.
- The correct currency and miles or kilometres setting is selected.
- The correct Trip option is easy to identify.
- Base, distance, time, waiting, tiers, and extras match the current rule.
- You have tested the configuration on known routes.
- Receipt business details are complete.
- Square is connected if you plan to take card payments.
- You know the local requirement for approved or certified meters.
When an iPhone taxi meter is the right fit
An iPhone meter is a strong operational fit for independent drivers, chauffeurs, private-hire operators, shuttle services, and other transport businesses allowed to use GPS-based pricing. It can also be useful for estimates, record keeping, or a backup calculation where a certified physical meter remains mandatory.
The advantage is not only replacing hardware. A connected app can carry the same trip into bookings, client messages, payments, receipts, invoices, and history. That is how the phone becomes a working business tool rather than only a fare display.