100% Free — No Subscription, Ever

Companion App

Your Weapon System.
Fully Connected.

The D3KR app is your command center. Live round tracking, a fully customizable HUD display, AI-powered ammo scanning, a complete inventory ledger with export — and a smart scale that counts your ammo by weight. Everything included. Free on iOS and Android.

Coming Soon App Store
Coming Soon Google Play
Smart Watch Pending AR Glasses Roadmap
12:42
22 /30 RND
MAG-01
87%
Active Magazine
MAG-01 · 9MM · 30 RND
22/30
9MM
Cal
8
Spent
87%
Batt
All Magazines
MAG-01
22
MAG-02
10
Dash
Session
Inventory
AI
HUD
22 RND
AR Overlay

What's In The App

Six Tools.
One Platform.
Zero Cost.

Dashboard
Everything at a Glance
Your mission-critical data, front and center. Live round count, battery levels, and inventory status — all updated in real time over BLE 5.0 the moment anything changes.
  • Live round count with per-round pip display
  • Color-coded ammo status (green / amber / red)
  • Multi-magazine overview
  • Inventory totals & low-stock warnings
Magazines
Know Every Magazine
Every D3KR magazine you own, tracked and named. No setup screens. The magazine identifies itself over BLE and syncs the moment it's in range — round count, battery, signal. All of it, automatically.
  • Auto-pair, zero configuration
  • Signal strength & battery monitoring
  • Custom names per magazine
  • Round count with live ammo bar
HUD Designer
Your HUD, Your Rules
Every element on the D3KR HUD is configurable. Pick what's on screen, choose a color that works for your light conditions, set your brightness, and push the layout wirelessly. It takes about 30 seconds.
  • 7 configurable display elements
  • 5 color themes + fully custom color picker
  • 3 presets: Minimal, Full, Combat
  • Wireless layout push to the HUD over BLE
Ammo Sense AI
Scan It. Know It. Log It.
Point your camera at any pile of ammunition. AI identifies the caliber, bullet type, casing, and brand — then adds it to your inventory with one tap. No manual entry, no counting by hand.
  • Multi-caliber detection in one scan
  • Bullet type, casing & brand ID
  • One-tap inventory import
  • Scan history archive
Smart Scale
Count by Weight
Connect the D3KR Smart Scale and count any pile of ammo in seconds — by weight. Select caliber, tare the scale, and get an instant round count without touching a single cartridge.
  • 5 built-in caliber weight presets
  • Grams or ounces — your choice
  • Weigh-in history with session log
  • Direct import to ammo inventory
Ammo Ledger
Every Round, Accounted For
Track every round by caliber, brand, location, and what you paid for it. Log range sessions. Export your full inventory to Excel, CSV, or Google Sheets. Know exactly what you have, where it is, and what it cost.
  • Track across safe, range bag, vehicle & more
  • Cost-per-round & total inventory value
  • Low-stock alerts per caliber
  • Export to Excel / CSV / Google Sheets

HUD Designer

Your Display,
Your Call.

Toggle elements on or off, pick a color that works for your environment, dial in brightness, apply a preset. When you're done, the app pushes your layout to the HUD wirelessly. What you see here is what appears on the device.

Quick Presets
Display Elements
Round Count
Ammo Bar
Mag Battery
HUD Battery
Caliber Label
Signal Strength
Clock
Compass Soon
Color Theme
Green
D3KR
Red
White
Amber
Custom
Brightness
9MM · MAG-01
22
87%
Mag Batt
92%
HUD Batt
████
Signal
14:32:07
D3KR HUD · FULL LAYOUT · 75% BRIGHTNESS

HUD in the Field

Every Scenario,
Handled.

The D3KR HUD reads your magazine and responds — green when you're loaded, amber when you're running low, red when you're down to your last few rounds. Swap a magazine and it syncs over BLE instantly. No buttons. No interaction. The display just stays current.

9MM · MAG-01
30
100%
Mag Batt
92%
HUD Batt
████
Signal
00:00:00
D3KR HUD · LIVE FIRE · GREEN
30/30
Round Count
GREEN
Active Theme
FULL
Mode
100%
Mag Battery
Active Scenario
Scenarios replay automatically

Ammo Intelligence

Know Every Round
You Own.

Most shooters have no idea how much ammo they actually have — or where it is. The D3KR ammo ledger changes that. Every round in your inventory is tracked, located, costed, and one tap from being exported to a spreadsheet.

Track Across Every Location
Safe, range bag, ammo can, vehicle, loaded magazine — assign rounds to any location and see your full inventory by location at a glance. Never wonder where your ammo is again.
Cost Per Round & Total Value
Log what you paid. The app tracks cost-per-round for every caliber and calculates total inventory value automatically. Know exactly what your stockpile is worth.
Full Transaction History
Every add, spend, range session, and training day is logged with source and timestamp. Store purchase, AI scan, scale weigh-in, range day, manual add — each entry tagged and dated.
Low-Stock Alerts Per Caliber
Set a minimum threshold for each caliber. The app flags you when you're running low — before you show up to the range short on ammo, not after.
Export Your Ledger — Anytime
Your data is yours. Export your complete ammo inventory and transaction history to any format you use. Drop it into a spreadsheet for training analysis, range planning, or compliance documentation. Works with all major platforms.
Excel (.xlsx) CSV Google Sheets Numbers PDF Report
Ammo Inventory
1,847 Rounds
5
Calibers
$614
Total Value
1
Low Stock
+
9mm FMJ — Federal — Safe
Store Purchase · Apr 19
+500
−
9mm FMJ — Range Bag
Range Day · Apr 20
−150
+
5.56 NATO — Ammo Can
AI Scan · Apr 18
+420
−
.45 ACP — Training Session
Training · Apr 17
−100
+
.308 WIN — Scale Weigh-In
Smart Scale · Apr 16
+200
47 transactions logged Export →
Ammo Sense — Scan Result
Detection● Detected
Total Rounds47 rounds
Calibers Found3
Est. Weight349.5g
9mm FMJ — Brass — Federal22
5.56 NATO FMJ — Brass — PMC18
.45 ACP JHP — Brass — Hornady7

Ammo Sense AI

Point.
Scan.
Stocked.

Counting ammo by hand is dead. Point your camera at any pile of ammunition and Ammo Sense identifies what you have — caliber, type, brand, count — and stocks your inventory in one tap. No manual entry. No guessing. Just verified data.

01
Instant AI Identification
Recognizes caliber, bullet type (FMJ, JHP, etc), casing material, and brand from a single photo. Works on mixed piles and partial views.
02
One-Tap Import
Review the scan result, assign a storage location, and import to your inventory with one tap. Every scan is archived for reference.
03
Never Show Up Short
Set a minimum threshold per caliber. The app flags you when you're running low — before you're at the range with an empty bag, not standing there wishing you'd checked.
Everything.
Free.
Forever.
The D3KR companion app is free — full stop. No subscription. No feature tiers. No account required to pair your device or run any feature. HUD designer, AI scanner, ammo ledger with export, scale integration, live round tracking — all of it, included. D3KR makes money on hardware. The app is the value you get for buying into the platform, not another recurring charge on your card.
Live Round Tracking — Free
HUD Designer — Free
AI Ammo Scanner — Free
Full Inventory Ledger — Free
Excel / CSV Export — Free
Smart Scale Integration — Free
No Subscription. Ever.