We build native software that respects the device it runs on.
DRC App Studio is an independent studio building five products for iOS, iPadOS, Android, macOS and the web. Every one of them is local-first, respecting your privacy preferences without unnecessary dependency bloat.
Five products, one studio
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
Cliff Jumper
Endless pixel-art fall for iPhone and iPad
An endless dive past grumpy birds, rock ledges, storm fronts and drones. Version 3.0, in development now, is a ground-up Swift and SpriteKit rebuild: every run steps at a fixed rate so the same seed always plays the same way, and nothing about your game leaves your own iCloud account.
- Five depth zones, six heroes, three missions
- Daily Drop: one seeded run for everyone
- Game Center leaderboards and achievements
- Art and chiptune audio generated from code
Blackjack Trainer
Basic strategy and card counting drills
A drill built on the full basic strategy matrix — hard totals, soft totals and pair splits against every dealer upcard. You play each hand through to the end rather than answering one prompt, and the trainer remembers the spots you keep getting wrong. Version 3.0 is in development.
- Complete hard, soft and pair-split matrix
- Hi-Lo running count and true count trainer
- Table rules: H17/S17, DAS, surrender, decks
- Shoe simulation and stats stay on device
Phone Analyzer
Private, on-device hardware and system diagnostic spec tool
A fine-grained hardware and system utility that reads deep device specifications, storage, memory, battery state, network telemetry, and real-time sensors. Everything stays strictly on your device — no account required, no ads, and zero third-party tracking.
- Hardware ID, CPU, kernel build, and RAM metrics
- Exact disk usage in both decimal GB and binary GiB
- Live motion, barometer, and environmental sensors
- Instant copy and export of complete device reports
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
Selected client partnerships
Alongside independent studio apps, DRC App Studio provides custom engineering, enterprise cloud architecture, and mission-critical portals for select businesses.
Commonwealth Wholesale Corporation
B2B Enterprise Portal & Supply Chain Integration
An industry-leading distributor of health, beauty, personal care, and general merchandise. We engineered custom cloud quoting portals, automated inventory synchronization pipelines, and robust enterprise ERP data workflows connecting warehouse distribution to sales teams.
How the work gets built
Four principles applied to every release and engagement. They rule out shortcuts, which is the point.
Privacy by architecture
User-controlled privacy preferences by design. Where ads are served, users decide their consent and tracking options, while consumer apps rely on local-first storage or zero-knowledge client encryption to keep personal data strictly yours.
Native craft & modern web
Mobile applications engineered in Swift, SwiftUI, and React Native across Apple and Android platforms, paired with resilient, high-performance web systems and enterprise portals built in TypeScript and Next.js.
Lean by default
Low-latency codebases with a disciplined dependency footprint. Every third-party package has to earn the binary size and maintenance weight it costs.
Independent and unhurried
A boutique studio on solo-developer economics. Products and client systems ship when they are finished and tested, not when an arbitrary deadline looms.
Behind the studio
DRC App Studio is led by Davi Chaves, designing and engineering software across Swift, SwiftUI, TypeScript, and modern cloud infrastructure 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. Phone Analyzer was created because understanding your own phone's hardware should not require giving up your privacy.
Cliff Jumper and Blackjack Trainer came first, and both are being rebuilt from scratch in Swift and SpriteKit. The rewrites drop the accounts and the servers the old versions leaned on: progress now lives on the device and in your own iCloud, and there is nothing left for the studio to host.
In addition to consumer products, the studio brings the same craftsmanship to select enterprise clients — building bespoke web portals and ERP data sync systems for partners like Commonwealth Wholesale Corporation. Everything ships when it is built properly.