We build native software that respects the device it runs on.
DRC App Studio is a one-developer studio working on two products for iOS, macOS and the web. Both are built local-first, without third-party trackers or dependency bloat.
Two products in development
Aviano
Aviation intelligence and live flight tracking
A flight tracker for travelers and enthusiasts. Aviano draws live ADS-B positions on its own map layer, and pushes gate and delay changes to the Lock Screen before the airline app does.
- Real-time ADS-B radar and telemetry
- Live Activities and Dynamic Island
- Predictive delay and gate change alerts
- Global route and aircraft database
Numeris
Zero-knowledge personal finance engine
Net worth, cashflow and budgets across every account you hold, encrypted on your device before anything leaves it. The server stores ciphertext it cannot read, and local mode works with no account at all.
- Client-side AES-GCM encryption
- Multi-bank, multi-currency sync
- Local-first speed, optional cloud
- Net worth and cashflow analytics
How the work gets built
Four constraints applied to every release. They rule out a lot of shortcuts, which is the point.
Privacy by architecture
Zero-knowledge stores and local-first data, so personal detail and telemetry stay on the device. No analytics SDK ships in any release.
Native craftsmanship
Written in Swift and SwiftUI for iOS and macOS, with the web surface built to match rather than substitute for it.
Lean by default
Low-latency codebases with a short dependency list. Every third-party package has to earn the binary size it costs.
Independent and unhurried
A boutique studio on solo-developer economics. Releases ship when they are finished, not when a quarter closes.
Behind the studio
DRC App Studio is one developer, Davi Chaves, working across Swift, SwiftUI and TypeScript from Fortaleza, Brazil.
The studio exists because most of the software I wanted on my own devices either didn't exist or came with a tracking SDK attached. Aviano started as a flight tracker I kept wishing for at the gate. Numeris started as a spreadsheet I no longer trusted to a third party.
Everything ships when it is finished. There is no roadmap pressure, no investor timeline, and no growth team — which is the only reason a two-person-year feature like client-side encryption is worth building properly.