Designed for real conditions
A forecourt in the sun, a busy restaurant floor — the experience has to work in seconds, on any phone.
Products
Products we build and run ourselves.
Alongside client work, Nerdcode builds its own products. It keeps our engineering honest — we live with what we ship, every day.
Band tappedTip page opened · no app needed
R10.00 receivedSent to Mandla's wallet
Xava · Live · xava.africa
Tap. Tip. Done.
Cash is disappearing, but tipping shouldn't. Xava is an NFC wristband that opens a tip page on any modern phone — so waiters, petrol attendants, car guards and cashiers keep earning in a cashless world.
- 01Tap the bandThe customer holds their phone near the Xava wristband. The tip page opens in their browser — no app, no cash.
- 02Choose a tipThey pick a quick amount and pay securely by card, Apple Pay or Google Pay.
- 03Worker gets paidThe tip goes straight to their Xava wallet, with earnings tracked in one place and simple payouts to their bank.
Why Xava exists
Real income for the people who keep South Africa moving.
Service workers have always relied on tips. As customers stop carrying cash, that income quietly disappears. Xava turns a three-second tap into money in a wallet — and gives the earner a record of it.
- Works with every modern smartphone — nothing to install
- No battery, no charging, no maintenance on the band
- Tips allocated to the earner's wallet instantly
- Secure payment by card, Apple Pay or Google Pay
- Simple payouts to the worker's bank account
Launching in Centurion & the Lowveld
Xava is operated by Nerdcode (Pty) Ltd. If you'd like bands for your staff, your venue or yourself, leave your details at xava.africa and the team will be in touch.
Built like our client work
Same engineers. Same standards.
Payments, identity and payouts are software we operate ourselves. It's the clearest proof we have of the way we build.
01
02
Secure by default
Every band carries a secure NFC chip; every payment runs through established, encrypted payment rails.
03
Run, not just shipped
Monitoring, support and iteration are part of the product — exactly as they are in the systems we build for clients.
Work with us
Have a workflow to automate, or a product to build?
We bring the same team and the same discipline to client work. Tell us what you're working on.