Sovereign Shelf
Own Your Shelf.
Own Your Data.
The shelf label platform that keeps your pricing data exactly where it belongs — with you. Cloud-optional. Air-gap ready. Built for independence.
Our Hardware
Purpose-built for shelf-edge intelligence
Air-Gap Ready
The Vault tier operates with zero network connectivity. Pricing updates move via signed USB manifests with Ed25519 verification. Your data never touches the internet.
Local-First Architecture
All three tiers process tag updates on-premises. The Commander hardware runs the full stack locally — cloud connectivity is optional, never required.
One-Click Price Sync
Push live pricing from your business system to every shelf label in under 30 seconds. No CSV exports, no manual entry. Direct purchase order and pricing field mapping.
Deployment Tiers
Find the deployment model that fits your business
SENTINEL
Essential
- Deployment Cloud-hosted
- Hardware Beacons only
- Internet required Yes
- Price sync Cloud push
- Starting at $79/mo
GUARDIAN
Professional
- Deployment On-prem + Cloud
- Hardware Commander + Beacons
- Internet required Optional
- Price sync Local + Cloud
- Starting at $149/mo
VAULT
Premium
- Deployment Air-gapped
- Hardware Commander + Beacons
- Internet required No
- Price sync USB manifest
- Starting at $9,999 one-time
System Integration
One-Click Price Sync
Push live pricing from your business system to every shelf label in under 30 seconds. No CSV exports. No manual re-entry. No overnight batch jobs.
- Direct field mapping: price levels to ESL display
- Purchase order sync propagates to shelf automatically
- Multi-store support — isolate by store or broadcast fleet-wide
- Full audit trail: every price change logged with purchase order reference
- Works on all three tiers including air-gapped Vault (USB handoff)
Now integrated with Spire Systems
Automatic price sync, pick-by-light, and will-call staging — all from your Spire POS.
→
$ price-sync --store=downtown --trigger=po-update
# Connecting to inventory system...
[OK] Session established — user: sync_agent
# Fetching PO #INV-2026-0041 delta...
ITEMS_CHANGED: 847
PRICE_UPDATES: 312
NEW_LISTINGS: 23
# Queuing BLE push to 312 tags...
[OK] Push complete — 312/312 confirmed
ELAPSED: 18.4s
—
[OK] Audit log written to /log/sync-2026-0222.jsonl
Envoy Program
Turn Existing Android
Devices Into Smart Kiosks
The Envoy program repurposes Android phones and tablets already in your facility as professional shelf-edge display kiosks. No new hardware required. Zero procurement lead time.
Android 6.0+
Minimum requirement
Device Owner
Kiosk lockdown mode
Offline Cache
Local SQLite fallback
Sentinel + Guardian
Network-connected tiers
01
Enroll device via admin portal — hardware ID auto-registered
→
02
Install Envoy APK — Device Owner mode, full kiosk lockdown
→
03
Assign content and products — displays update with every Live sync