3C Canteen is an NFC bracelet payment system for canteens. It settles sales locally and reconciles when connectivity returns, so the till never blocks.

3T Ticket is a smart event ticketing app to sell, scan and validate tickets. It offers three ways in at the door — NFC, QR code, or printed ticket — so every guest can be admitted whatever they are holding.

// engineering studio · tallinn → frankfurt

We ship software that holds up when the network doesn't.

Q: What does HandwerkSolutions do?

HandwerkSolutions OÜ is an Estonian engineering studio shipping offline-first, multilingual apps for operations, including 3C Canteen and 3T Ticket.

Q: How is it built and hosted?

Offline-first apps for iOS and Android in EN, FR and DE, with EU infrastructure in the Frankfurt region.

HandwerkSolutions is a small engineering studio building offline-first apps for high-pressure, real-world points of contact — the canteen till, the venue door. Local-first by default, multilingual on day one, reconciled the moment you're back online.

View modules → Read the FAQ

02 · Modules in production

Two shipping. More in the pipeline.

module/3C · v—live

3C Canteen

Canteen. Connected. Cashless.

NFC bracelet payments for schools, universities and offices. The till settles locally and reconciles when connectivity returns — so lunch never blocks on Wi-Fi.

methodNFC bracelet

resilienceoffline settlement

i18nEN · FR · DE

platformsiOS · Android

Download on the
App Store Get it on
Google Play

module/3T · livelive

3T Ticket

Smart event ticketing. Three ways in.

Sell, scan and validate event tickets from one app. Three ways through the door — tap an NFC band, scan a QR code, or read a printed ticket — so every guest gets in, whatever they're holding.

entryNFC · QR · Print

flowsell · scan · validate

i18nEN · FR · DE

platformsiOS · Android

Download on the
App Store Get it on
Google Play

module/—— · queued

// reserved for the rest of your solution set

add module →

04 · FAQ

Answers, structured for extraction.

What does HandwerkSolutions do?

An Estonian engineering studio shipping offline-first, multilingual apps for operations — currently 3C Canteen and 3T Ticket.

What is 3C Canteen?

NFC bracelet payments for canteens. Settles locally, reconciles online, so the till never blocks.

What is 3T Ticket?

Smart event ticketing — sell, scan and validate tickets, with three ways in at the door: NFC, QR code, or print.

How is it built and hosted?

Offline-first iOS/Android apps in EN·FR·DE, on EU infrastructure (Frankfurt).