Guy earns over $25,000 a month from his iOS app.

Guy earns over $25,000 a month from his iOS app.

The key is that:

In it:

• there is no registration/login
• there is no database (only local storage is used)

As he claims, thanks to artificial intelligence, anyone can create an app in just a few days. The entry barrier has never been this low, and the market is this large. People are earning $20,000, $50,000, $100,000 a month from simple apps created over the weekend.

His app is called — Prayer Lock.

The coolest part is that he didn’t invent anything from scratch. He simply took the idea from another app and made his own based on the existing one (screenshot 2).

It took him 3 years and 10 attempts to reach an income of $25k a month because he started from scratch and decided he never wanted to work for someone else (and still hasn’t).

In summary:

Founder: Mal Baron (Mauricio) — solo founder

How he created the app:

• Built the app in 3 days using only Cursor and ChatGPT
• Did not invent anything from scratch — found an existing app called Praycreen and decided to improve its design and features (screenshot 2)

How the app works:

• It locks the phone until the user prays. It asks two questions: how are your relationships with God today and how do you feel — and based on the answers, it generates a personal prayer through AI.

Numbers and monetization:

• Price: $49.99 per year or $9.99 per week. In December, revenue was $21,000. Growth — over 50% per month. Nearly 58,000 downloads, conversion rate 43%, rating 4.9 (6,700 reviews)

Marketing (this is the key to his success!):

• Posted content 40 times a day through 12 accounts to test formats. The main format is UGC videos with girls reacting to the app on TikTok/Instagram
• Scaled the ad budget from $20/day to $360/day — spent $9,000 a month on ads, earning $20,000+
• Through UGC marketing automation, gained 6 million views and 24,000 downloads

Technical feature:

• Many successful apps earning $20k/month do not use databases and authentication — data is stored locally on the device, which reduces friction for the user and lowers server costs.