Works with no signal, syncs when there is.

Inspections happen where there is no network, so they're recorded on paper and typed up later — if they're typed up at all. By then nobody can say which reading came from which item.

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What we build

An offline-first Android app that captures everything locally and syncs when a connection returns
Scan-to-identify, so a reading is bound to the right item rather than a hand-written reference
Chain of custody — who handled what, when
Export or sign-off at the end of a visit, including certificate and spreadsheet output

Hardware it runs on

Chainway C5: Rugged handheld for field conditions
OEM UHF handhelds: Built-in modules, integrated over serial where no SDK exists
Zebra RFD40: Sled where read range matters

Every device listed here is one we have written about or shipped against. If yours isn't on the list, the feasibility read covers whether it can be.

How it reaches your system of record

Captured records queue on the device and reconcile on sync, so a repeated upload can't create duplicates. Where a backend isn't ready, the visit ends in a signed spreadsheet export instead — usually the format the business already runs on.

What you get

Offline-first Android application
Sync and conflict-resolution logic
Export or certificate templates
Field procedure notes for the crew

What it costs

A fixed fee, scoped after the feasibility read. You see the number before any work starts, and it doesn't move.

How an engagement runs

The work behind it

We publish the engineering, not just the sales page.

Case study · OEM UHF handheld (Impinj E710 module)

The reader wasn't the reader — a minerals inspection app on an unbranded UHF handheld

A minerals inspection company in Belgium was scanning RFID tags and reading raw hex. We replaced that with an app that shows the lot, the mineral and the location on the pull of a trigger — after discovering the device was not the reader the project had been scoped around.

Guide · Chainway C5

Chainway C5 RFID Android SDK: Inventory to CSV

The Chainway C5 shares its UHF SDK family with the C72 — same UART-based reader class, same trigger-key pattern. Turning a raw inventory sweep into a usable stocktake means deduplicating EPCs in-session and exporting a clean CSV, which the sample app does not do.

Guide · Generic UHF module (white-label)

Integrating an Unbranded Chinese UHF Reader on Android

A no-name UHF reader with a CD, a broken .aar and a Chinese-only PDF is almost always a white-labeled module from a handful of chipset vendors. Identify the module, decompile the shipped APK or .aar with jadx to recover the real API surface, and — on built-in modules — raise the GPIO power rail before opening the serial port. A port opened onto an unpowered module succeeds and then times out on every command.

Send us the device and the error

Model, SDK version, and what's failing. A written read within 24 hours, and nothing owed if it's a no-go.

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