This Simple App Earned $2,300 in 1 Month via Instagram
u/heibuilderFounder of Peazehub $2300 revenue in 1 monthPeazehub.com is a simple focus timer and productivity app 
The founder shared on Reddit…
A few months ago, my girlfriend… mentioned she had trouble tracking her work and study hours…
So I built her a simple, clean time tracker. No distractions – just stats and a timer to track work and study time.
He added a few more features after that, then…
After posting it on Instagram and adding a payment option, it unexpectedly took off…
It’s been exactly one month (+1 day) since I integrated payments, and so far, I’ve made $2.3K.
Sounds like most of his customers are coming via Instagram, where he’s posting simple memes and Reels 
How about turning that marketing approach into a service? 
Find niche apps and offer to manage their Instagram account, share similar content to attract new users.
