PiehSoft
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Halo+

3,500 students in 3 weeks

Halo+ product render

Designed, built, and launched a consumer iOS app on the App Store solo — 3,500 students onboarded in three weeks, 55.6% App Store conversion, 698 DAU at peak.

Timeline
2024
Role
Solo founder, design + engineering
Technology
Swift, SwiftUI, App Store Connect
Platform
iOS native · App Store
3,570
Total downloads
698
Peak DAU
55.6%
App Store conversion

The Product

The Product

Halo+ was a consumer iOS app shipped solo from concept to App Store in months. Design system, codebase, App Store materials, analytics, and growth experiments — all under one consistent direction.

What this proves

What this proves

55.6% App Store conversion is not a beginner number. It comes from understanding both the screenshot funnel and the first-launch experience as one system. 3,500 students in three weeks is the proof that the experience held up once they got in.