HOME
[kal_foundry] work patents about now team ↗
// PROD / 001 · MOBILE APP · 2024 → NOW

arsenal hubsecurity-first inventory,
in your pocket.

A security-first mobile app for tracking personal firearm, ammunition, and accessory inventory. Designed and built end to end — brand, product design, and engineering — with privacy and on-device security as first principles.

categoryMobile App focusSecurity · Privacy statusShipped
// IN ACTION

the app, live.

Arsenal Hub app walkthrough
// CAPABILITIES

built from first principles.

Every feature starts with the question: does this belong to the user? Inventory, records, and data stay on-device and under owner control.

01
Firearm Inventory

Catalog every firearm with make, model, serial, caliber, and configuration — all stored locally.

02
Ammo Tracking

Track ammunition by caliber, brand, grain, and round count. Know exactly what you have on hand.

03
Accessory Log

Log optics, suppressors, magazines, and accessories linked to the firearms they belong to.

04
On-Device Security

No cloud sync required. Data lives on your device, protected by biometric and passcode lock.

05
Record Keeping

Maintain ownership records, purchase history, and maintenance logs that stay yours.

06
Privacy First

No accounts. No tracking. No data leaves your device unless you explicitly choose to export it.

Product Mobile Security Privacy Design Engineering iOS