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.

Related across the cluster.