A first iPhone app built with coding agents grossed $41,425 in a month
A former Google engineer shares downloads, conversion rate, pricing, and costs for his vault app.
Subject: Vaultaire (Rasty Turek)
Case Overview & Background
Rasty Turek built Vaultaire, an encrypted photo and file vault for iPhone, in about three weeks, mostly by prompting AI coding agents. He reports 17,100 downloads, 1,287 purchases, and a 7.53% conversion rate, with $26,384 gross in July and $41,425 in August.
How AI Is Used
Step-by-Step Process
Wrote specs and let agents produce most of the code.
$9.99/year, $1.99/month, or $29.99 lifetime.
Japan became a large source of App Store traffic; backlinks helped SEO.
Customer Acquisition & Distribution
Limitations, Risks & Failure Modes
What may not apply to you, and what could go wrong:
- Lifetime purchases create spikes, not predictable recurring revenue
- App Store review and ranking changes
- Self-reported figures, gross before Apple's cut
Key Takeaways
- An unusually transparent breakdown of conversion and costs
- AI coding agents let an engineer new to iOS ship a paid app
- International markets can matter more than expected
Sources
Indie Hackers: how Rasty Turek built Vaultaire in three weeks and grew it to $40K/month
Note: Founder interview with downloads, purchases, conversion, pricing, and costs.
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