Digital wallet
development.

Stored value, P2P, merchant payments, QR codes, and PCI-DSS-aligned card tokenisation, for fintechs and banks.

Brief us See work
What we build

We build digital wallets, stored value, P2P transfers, merchant payments, QR codes, and PCI-DSS-aligned card tokenisation. For fintechs, telcos, retailers, and banks.

Problem · approach · outcome.

How we run this kind of work
01 · Problem

Wallet apps live or die on trust and friction.

Users abandon wallets that crash, fail KYC awkwardly, or hold money in places they can't verify. Trust signals, clear ledger, instant settlement feedback, defensible security, are the product.

02 · Approach

Ledger first, UX second.

A clean double-entry ledger as the source of truth. Idempotent operations. Reconciliation against banking partners daily. PCI-DSS-aligned token vault for cards. UX designed around the actual states, settled, pending, reversed.

03 · Outcome

A wallet users keep using.

A wallet with provably correct ledger, daily reconciliation, defensible security posture, and UX that fits the actual settlement reality.

What we ship.

6 modules · extensible
F-01

Stored-value ledger

Double-entry ledger with idempotency, reconciliation, and proper transaction states.

F-02

P2P transfers

In-network and out-of-network P2P with instant UX and underlying ACH/RTP/SEPA.

F-03

Merchant payments

In-store and online merchant payments, QR codes, refunds, and settlement workflows.

F-04

Card tokenisation

PCI-DSS-aligned token vault, network tokenisation (Visa/MasterCard), and HSM integration.

F-05

KYC / AML

KYC at onboarding (Sumsub, Onfido, Jumio), ongoing AML monitoring, and reporting.

F-06

Reporting & reconciliation

Daily reconciliation against banking partners, dispute management, and operations dashboards.

Tech stack.

Production-tested
Mobile
React NativeSwiftKotlinFlutter
Backend
Node.js.NET 8PostgreSQLKafka
Payments
StripeAdyenMarqetaPlaid
KYC
SumsubOnfidoJumioComplyAdvantage

Wallet users
can trust?

Fintech practice · PCI-aligned
Get a quote

Digital wallet development FAQs.

Q-01Stored value or pass-through?
Both. Stored-value requires licensing (or partnership with a licensed entity); pass-through is faster to launch but constrained.
Q-02PCI-DSS scope?
We minimise scope via tokenisation, your environment never touches PAN. SAQ-A or SAQ-A-EP is the typical outcome.
Q-03P2P payments?
In-network instant; out-of-network via ACH/RTP/SEPA depending on region.
Q-04KYC integration?
Sumsub, Onfido, Jumio, and ComplyAdvantage are our most common. We build the workflow; you choose the vendor.
Q-05Operations after launch?
Daily reconciliation, dispute management, and operations dashboards. Managed services available.