How much do you earn via your Android app [paid or free]?

This may be a useful data point about how a straightforward free/OSS + paid/premium app monetizes.

I have been a primary developer of Barcode Scanner (Android Apps on Google Play) since its inception in 2008. In 2012 I created a for-pay version to fund the OSS project, called Barcode Scanner+ (Android Apps on Google Play ) This was a standard free / open source + premium for-pay app model, so may be of interest.

As of October 2014, After about 6 years, Barcode Scanner has about 29.4M users, and after about 2 years, the BS+ app has about 42K. There is little cross-promotion. At ~$3 it has earned about $88K in net revenue.

Edit: as of December 2015, Barcode Scanner has about 35.5M users, and BS+ has about 52K total users, with net revenue of about $100K total.

Edit: see Google Groups for discussion of the app’s history as of November 2017. Excerpt:

(Peak) Barcode Scanner Users: 16 million

Android stats reporting has changed dramatically over time, but as of now it says the active install count peaked at 16 million about a year ago, and is dropping, at about 12 million now. It's an aging app slowly being replaced by things like the built-in Android barcode API.

Note this is pretty different from the user counts the store used to report, which reported more like 35 million a couple years ago.

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Reviews: 4.1 over 621,000+

Not bad. People like it because it's free and works pretty well, but it has an aging interface and doesn't scan perfectly.

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Monetization: $143,000

The core project and app were never monetized in any way. It was, really Google's IP to give away and they (we) did so. That's always seemed good.

For the curious, the monetization via the 'plus' app did raise a reasonable amount of revenue over the years from 57,500 users, to offset development costs. It's been charity-ware for over a year, and raised about $20,000 of that for environmental causes. Which leads to ...