I'm still supporting a few niche utility apps on the iOS and Mac app stores from a few years ago, back before I started focusing pretty exclusively on client projects. Things I wrote because I needed them and later cleaned up and released so others could use them too. They're all due for some updates (life and full time work frequently take precedence), but they're pretty consistent in terms of revenue.
Mi-Fi Monitor has an iOS[1] and a Mac[2] version that was developed first but released a few months later (it's a shared codebase to the maximum extent possible, different native UI, same app).
They've never really been promoted by me directly, but the Mac version was independently noticed by a writer at TUAW (now Engadget) soon after release and was featured[3] on the site. The TUAW story caused the Mac version alone to generate $600 in just 1-2 days, but then both versions fell back down to a combined total of roughly $50-100/month where they've stayed ever since.
Several execs at Novatel (Mi-Fi manufacturer) sent support requests or general emails about them, and I talked to one on the phone briefly about various things, but they never had any other involvement. Still, that was pretty cool knowing they were interested and using the apps :)
There is a native Android version of Mi-Fi Monitor but I never released it so I can't even guess what the revenue would have been like.
The only other app I released myself is Codepoints[4], which only has a Mac version. It generated about $350 right after release, then fell back down to around $50-75/month. Again no direct promotion on that one. I get nice emails from users about it frequently though, which is also cool :)
Mi-Fi Monitor has an iOS[1] and a Mac[2] version that was developed first but released a few months later (it's a shared codebase to the maximum extent possible, different native UI, same app).
They've never really been promoted by me directly, but the Mac version was independently noticed by a writer at TUAW (now Engadget) soon after release and was featured[3] on the site. The TUAW story caused the Mac version alone to generate $600 in just 1-2 days, but then both versions fell back down to a combined total of roughly $50-100/month where they've stayed ever since.
Several execs at Novatel (Mi-Fi manufacturer) sent support requests or general emails about them, and I talked to one on the phone briefly about various things, but they never had any other involvement. Still, that was pretty cool knowing they were interested and using the apps :)
There is a native Android version of Mi-Fi Monitor but I never released it so I can't even guess what the revenue would have been like.
The only other app I released myself is Codepoints[4], which only has a Mac version. It generated about $350 right after release, then fell back down to around $50-75/month. Again no direct promotion on that one. I get nice emails from users about it frequently though, which is also cool :)
[1] https://infincia.com/apps/mi-fi-monitor-ios
[2] https://infincia.com/apps/mi-fi-monitor-mac
[3] http://www.engadget.com/2011/12/13/daily-mac-app-mi-fi-monit...
[4] https://infincia.com/apps/codepoints