Generator Tracker Lite

Generator Tracker Lite is the free edition of Generator Tracker, built around what you do during a power cut: start the generator in one tap, keep an eye on it and never miss maintenance — for a backup unit at home, a job site or a small fleet.

Start and stop from Home

• Running generators move to the top with a live timer and a big Stop button; idle ones sit below with Start

• Several generators can run at once; a bar at the bottom keeps the running ones a tap away

• Stopped by mistake? Undo brings the session back with its original start time

• Forgot to tap? Fix the start time or add a session later

Fuel left, estimated

• Add your tank size and see roughly how much fuel and how many hours are left

• Refills in a few taps: to full, same as last time or a stepper

• Refuelling a running engine is blocked — "Stop and refill" ends the session and fills in the refill time for you

• A full tank calibrates the estimate; consumption per hour is worked out for you

• Litres or US gallons — set by your region, switchable in Settings

Maintenance on time

• Oil, filters, spark plugs — intervals by engine hours, by days, or both

• Each task shows how much of the interval is used; overdue work is flagged on the home screen with ▲

• Mark a task as serviced with one tap

Clear analytics

• Run hours and fuel by month as bars split by generator colour — petrol and diesel are never summed together

• All-time totals and consumption per hour for every generator

Readable day and night

• Large, high-contrast controls that are easy to hit in the dark or with gloves

• Warm light theme and a true-black dark theme that saves battery during outages

• Material 3 design on Android phones, tablets and foldables

What the Lite edition includes

• Up to 3 generators with 2 maintenance tasks each — everything else works without limits

• A banner on the Analytics and Settings screens and an occasional full-screen ad when opening Analytics; never on the home screen, around Start/Stop or at launch

• One-time purchases, no subscriptions: Remove ads, Unlimited (generators and maintenance tasks) or Everything — both together for less

• Prefer no ads at all from day one? The paid Generator Tracker app has no ads, no limits and no purchases

Private by design

• Everything is stored on your device first and works fully offline

• An account is optional and only syncs your own records between your devices

• Delete your account and cloud data any time in Settings

• The app itself has no analytics; ads ask for your consent where the law requires it

• Open source (MIT) — anyone can check what the app does

Available in English and Ukrainian.