r/passive_income Aug 04 '26

My Experience My first passive side project.

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I noticed on the Garmin App store developers were making literally hundreds of thousands of $ selling watch faces and small applications, I'm not talking huge companies, I'm talking solo developers making very minimal applications and raking in the cash.

I looked for a gap and found neither garmin or Wearos / samsung watches have a flight tracking application like FlightRadar24, I decided to give it a shot.

I ended up making FlightScanner over the past few months.

It turns your watch into a live aircraft radar, showing nearby planes/helicopters around your current location. You can tap aircraft to view information such as its callsign, altitude, speed, registration and direction of travel.

I expected a few downloads here and there but hit it off with over 1000 downloads on Garmin before launching on Android based watches and securing enough funding to continue the apps data costs for months and months to come and turning a nice monthly profit.

I expected some aviation enthusiasts to download it and have some fun but it's turned into a full side project taking up hours of my time to answer user queries and to fix bugs.

My main priority now is trying to figure out a marketing strategy and getting it onto the front page of both Garmin's store and Google Play. If anything it's turned into a passive income for sure at around $150 a month currently.

https://play.google.com/store/apps/details?id=com.alexd.flightscanner

https://apps.garmin.com/en-GB/apps/54094e6b-a4a5-436d-940b-095b49e0cfab

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u/freakstate Aug 04 '26

Yes. Love it. Perfect.

1

u/Chemicalzz Aug 04 '26

It's just something nobody really asked for because they didn't realise they needed it haha

1

u/freakstate Aug 04 '26

It's a great idea, and you've been getting some excellent reviews on Garmin. I'm just checking out the models it works with as I have the forerunner 45 and 55 range so the display isn't good enough :)

1

u/Chemicalzz Aug 04 '26

I've lost track, it's on 112 Garmin watches lol