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__ Vali Cash

Banknote authentication on the go 

Client : Koenig & Bauer 

__ The Mission

For millions of people, cash is still the main way to pay, save and trade.

Every time a note changes hands, trust is in question. Koenig & Bauer, a global leader in high security printing, know banknotes in microscopic detail. They wanted that expertise to live where cash actually moves: in shops, markets, taxis and small businesses.

Create an app that checks a banknote in under a second and answers one question with authority. Is this genuine.

Not a specialist tool locked away in a back office.
But everyday reassurance in the palm of a hand.

__ The Insight

Professionals can rely on machines, UV lamps and dedicated devices. 

Most people have touch, eyesight and a handful of rules to remember. That gap creates quiet anxiety. Retail staff hesitate with a queue building. Market traders feel exposed. Travellers doubt unfamiliar currencies.

Koenig & Bauer already understood the deep signals in their notes, from intaglio printing to holograms and optical effects. What was missing was a way for anyone to access that expertise through a standard phone camera, without learning a new language of security features.

Security knowledge locked in documents helps the few.
Security knowledge translated into images can help anyone.

A hand holding a cell phone with a green light on the screenA cell phone sitting on top of a pile of money
A person taking a picture of another person holding a phone

__ The Filament Effect

Working with Koenig & Bauer's software and security teams, Filament turned internal verification know-how into a calm, human app.

A simple scanning flow shows users how to position the note, then steps out of the way.

Result screens do more than flash green or red. They explain whether a note is genuine or suspicious and suggest what to do next. Visual language, tone and interaction were tuned to feel reassuring rather than forensic. A companion for people who simply need to know whether to accept or decline.

Not an app for experts.
A confidence tool for a cash-first world.

__ The Breakthrough

ValiCash becomes more than a counterfeit detector. 

It turns into a confidence tool for a cash first world. Notes can be checked on the move, in seconds, without dedicated hardware. The same app can support multiple currencies and feature sets, so one tool can travel with users across borders and markets. 

A series of images showing different ways to use a cell phone

__ The Outcome

ValiCash has become a key part of Koenig & Bauer’s CashTech strategy 

and has been recognised with the CashEssentials Best New CashTech Innovation Award.

A tense moment at a till or market stall becomes a short interaction that ends in clarity rather than doubt.