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Car cost tracker · Made in Canada

Know what your car really costs.

KeyStub keeps the tab on everything you spend on your vehicles (fuel, repairs, insurance, registration, etc.) and turns it into the numbers that matter: cost per kilometre, cost per month, and what's due next.

Start free →See how it works
Free for 2 vehicles 30 days of Pro on us No card needed
Cost per km$1.57
Logged since 202490 records
Registration
Due in 15 days
Real data, one real car

Two years. One SUV. Every dollar, counted.

$741average per month
$1.57per kilometre driven
54%of it was insurance

*Based on real data: the founder's own SUV, every fill-up, repair and insurance payment since 2024.

How it works

Three steps. The numbers keep themselves up to date.

1

Add your vehicle

Type in the year, make and model yourself, or enter the VIN to fill them in. The VIN is optional and always private. Moving from a spreadsheet or another tracker? Import it.

2

Log costs as they happen

Fill-ups, oil changes, repairs, insurance, registration, parking: each takes seconds. KeyStub catches duplicates and odometer typos before they mess up your numbers.

3

See what it really costs

Your dashboard turns every receipt into the numbers that matter: total cost, cost per kilometre, cost per month, and what's due next.

Features

Everything your car costs, in one place.

Fuel, EV charging, maintenance, insurance and registration are built in, plus parking, tolls, roadside assistance, seasonal tires and more. Kilometres or miles, litres or gallons, L/100 km or MPG, in your currency. Custom categories are coming soon.

True cost of ownership

Purchase price, fuel, repairs, insurance, registration and everything else in one number, plus cost per km and average monthly cost.

$19,269running costs
+ $9,200purchase
$28,469total so far

A fill-up in 10 seconds

Total, litres, odometer. Done. Fuel economy is worked out between full tanks.

Sep 16 46.9 L · full tank$77.81
Aug 26 Fill-up$83.21
Aug 21 Fill-up$94.32

Maintenance with receipts in mind

Parts, labour, tax, shop, invoice number and warranty, with next-service reminders by date or kilometres.

DEALER SERVICE · INVOICE
Parts1,441.82
Labour1,920.36
Tax174.11
TOTAL$3,656.29

Never miss a renewal

Insurance, registration and service reminders, flagged as early as you like: 30 days or 500 km ahead by default, or set your own.

Typos get caught

Duplicate entries and odometer readings that go backwards are flagged before they skew your numbers.

There's already a fuel entry on Sep 16 for $77.81. Save it anyway?

Keep or replace?

Compare what your car really costs each month against a replacement.

$741keep / mo
vs
$520replace / mo

Example: a $24,000 replacement breaks even in about 9 years.

Your data, always

Export everything to a spreadsheet or a full backup, any time, on any plan. No lock-in.

keystub-backup.json keystub.csv
Electric & plug-in hybrid

Drive electric? KeyStub speaks kWh.

Gas apps treat an EV as an afterthought. KeyStub tracks what actually matters when you plug in, and it works the same for gas, diesel, hybrid and plug-in hybrid vehicles.

  • Every charge, home or away. Home, work, Level 2 and DC fast, with the network, kWh, battery % and minutes. Skip the cost at home and it’s worked out from your electricity rate.
  • Your real efficiency. kWh/100 km measured at the plug, so charging losses are included. Not the car’s optimistic dash number.
  • What you’re saving vs gas. Your energy cost against a comparable gas car on the same kilometres, at the fuel price you set.
  • Battery health over time. Log state of health or range at 100% every few months and watch how your battery ages against the rated range.
  • The rest of EV ownership. Home charger install, charging subscriptions, tires, cabin filters, 12V battery, and rebates counted as money back.
Efficiency17.8kWh/100 km
Average price$0.21per kWh · 82% at home
Energy cost$0.037per km
Saved vs gas$1,240over 12,400 km

Example figures for illustration.

Why KeyStub exists
“I bought a used SUV in 2024 and started writing down every dollar it cost me. Two years later the spreadsheet told a story no app did: insurance was over half of it, and the repairs were adding up. KeyStub is the tracker I wished I'd had from day one.”
Jarin, founder of KeyStub
Insurance$10,435
Maintenance & repairs$5,378
Fuel$3,236
Pricing

Start free. Upgrade when it's worth it.

Every account starts with 30 days of Pro. Compare all features →

Free

$0

Everything you need to track a car or two.

  • Up to 2 vehicles
  • Unlimited fuel, maintenance and cost logs
  • EV charging and battery health tracking
  • Dashboard, reports and cost per km
  • Service and renewal reminders in the app
  • Up to 3 custom categories Coming soon
  • Scheduled payments (e.g. monthly insurance) Coming soon
  • Export all your data, any time
Get started
30 days free

Pro

$24/year

or $3/month, CAD or USD. For households, multiple vehicles, and less typing.

  • Everything in Free
  • Unlimited vehicles
  • Unlimited custom categories Coming soon
  • Receipt scanning: snap a photo, KeyStub fills it in Coming soon
  • Smart reminders by email and phone when a fill-up or payment is overdue Coming soon
  • Printable service-history report for resale
  • Bank-statement import Coming soon
Start 30-day free trial →No card needed. After 30 days you move to Free and keep all your data, unless you upgrade.

Find out what your car really costs.

Start free →

Free for 2 vehicles · 30 days of Pro · No card needed