---
title: "Mobile Banking App | Ready-to-Market iOS and Android"
description: "Build a branded mobile banking experience with Crassula: iOS, Android and web apps connected to your configured accounts, payments and card capabilities."
url: "https://crassula.io/solutions/mobile-banking-app/"
lang: "en"
alternates:
  "en": "https://crassula.io/solutions/mobile-banking-app/"
  "de": "https://crassula.io/de/solutions/mobile-banking-app/"
  "es": "https://crassula.io/es/solutions/mobile-banking-app/"
  "fr": "https://crassula.io/fr/solutions/mobile-banking-app/"
  "x-default": "https://crassula.io/solutions/mobile-banking-app/"
index: "https://crassula.io/llms.txt"
---

Your future banking experience

# Your bank, in their hands.

Bring your brand to ready-made iOS and Android apps, with account, payment and card journeys connected to the capabilities you configure in Crassula.

[Explore your app experience](https://crassula.io/request-demo/)Explore the connected experience ↓

iOS Android Web

## Connect the services behind your app.

[![Sumsub](https://crassula.io/static/images/solutions/connector-logos/sumsub.png)](https://crassula.io/connectors/app/sumsub/)
[![OpenPayd](https://crassula.io/static/images/solutions/connector-logos/openpayd.png)](https://crassula.io/connectors/app/openpayd/)
[![Railsr](https://crassula.io/static/images/solutions/connector-logos/railsr.png)](https://crassula.io/connectors/app/railsr/)
[![Intercash](https://crassula.io/static/images/solutions/connector-logos/intercash.svg)](https://crassula.io/connectors/app/intercash/)
[![REAP](https://crassula.io/static/images/solutions/connector-logos/reap.svg)](https://crassula.io/connectors/app/reap/)
[![Currencycloud](https://crassula.io/static/images/solutions/connector-logos/currencycloud.svg)](https://crassula.io/connectors/app/currencycloud/)

A selection of our connectors [Explore all connectors](https://crassula.io/connectors/)

Built around their day

## A balance check. A payment. Back to their day.

Give customers a familiar way to check a balance, find account details and review a transfer. Your brand carries through the small moments that make up everyday banking.

![A man checking his phone at home.](https://crassula.io/static/images/features/people/confidence-1200.webp)

Case Studies

## See what teams build with Crassula.

![Pay IO](https://crassula.io/static/images/solutions/cases/logo-payio.png)

- Business accounts
- Virtual and physical cards
- Multi-currency exchange

Live on Crassula

### [Business banking built around everyday financial needs.](https://crassula.io/cases/payio/)

Business accounts, virtual and physical debit cards, local payments and multi-currency services with web and mobile interfaces.

[Read case study](https://crassula.io/cases/payio/)

![Wickie](https://crassula.io/static/images/solutions/cases/logo-wickie.png)

- Digital wallets
- Web interfaces
- iOS and Android apps

Live on Crassula

### [Fiat and crypto products across web and mobile.](https://crassula.io/cases/wickie/)

Digital wallets and financial journeys delivered through Crassula APIs, web interfaces and iOS and Android apps.

[Read case study](https://crassula.io/cases/wickie/)

One identity across every channel

## The same banking relationship. A layout for each screen.

Let customers find their accounts, balances and activity through web and mobile experiences shaped around the same product configuration.

01

### Recognisable on the phone

Offer branded iOS and Android apps with the account and payment capabilities enabled for your fintech.

02

### Useful in the browser

Present multiple accounts, activity and statements in a workspace designed for the web.

From appearance to a working product

## Agree what your app needs to do.

Start with the customer journey, then confirm the banking modules, provider connections and release work behind it.

[Explore white-label apps →](https://crassula.io/products/interfaces/)

01

### Shape the identity

Agree the application name, colours, appearance and languages for your product. Keep those choices separate from account eligibility, payment rules and pricing.

Application identity iOS · Android · Web

02

### Connect the customer journeys

Confirm which account, payment, card and verification services the app will present. Review authentication and integration scope against your existing systems.

03

### Validate the release

Review the configured journeys, supported devices, operating processes and publishing responsibilities before agreeing the release plan.

[Discuss your implementation →](https://crassula.io/request-demo/)

Built for developers

## Your interface. Connected to real account data.

Build your own balance screen on top of the Banking API, or extend your branded Crassula apps. Retrieve account balances by currency to power the experience you design.

- Read balances for each account and currency
- Filter the response to one account
- Use current, reserved and available balances

[Explore the API docs](https://docs.demo.crassu.la/#tag/accounts/GET/api/clients/{clientId}/balances)

GET`/api/clients/{clientId}/balances`

Node.js · native fetch

```text
// Retrieve account balances
const baseUrl = process.env.CRASSULA_BASE_URL;
const apiKey = process.env.CRASSULA_API_KEY;
const clientId = process.env.CRASSULA_CLIENT_ID;

const path = `/api/clients/${encodeURIComponent(clientId)}/balances`;
const query = new URLSearchParams({
  "filter[account]": "YOUR_ACCOUNT_NUMBER"
});
const response = await fetch(`${baseUrl}${path}?${query}`, {
  method: 'GET',
  headers: {
    Authorization: apiKey,
  },
});

if (!response.ok) throw new Error(`HTTP ${response.status}`);
const data = await response.json();
```

**Retrieve account balances**

Your app uses the client authentication flow; server-to-server integrations can use an API key.

[View API reference](https://docs.demo.crassu.la/#tag/accounts/GET/api/clients/{clientId}/balances)

Crassula Connectors

## Connect the services your product needs.

Choose integrations that fit your programme, market and required capabilities.

[![Sumsub](https://crassula.io/static/images/solutions/connector-logos/sumsub.png)Identity verification](https://crassula.io/connectors/app/sumsub/) [![OpenPayd](https://crassula.io/static/images/solutions/connector-logos/openpayd.png)Accounts and payments](https://crassula.io/connectors/app/openpayd/) [![Railsr](https://crassula.io/static/images/solutions/connector-logos/railsr.png)Accounts and cards](https://crassula.io/connectors/app/railsr/) [![Intercash](https://crassula.io/static/images/solutions/connector-logos/intercash.svg)Card issuing](https://crassula.io/connectors/app/intercash/) [![REAP](https://crassula.io/static/images/solutions/connector-logos/reap.svg)Card issuing](https://crassula.io/connectors/app/reap/) [Explore all connectors](https://crassula.io/connectors/)

Guides

## Mobile banking, explained

![White-Label Mobile Banking in 2026: The Ultimate Guide](https://crassula.io/static/images/guides/white-label-mobile-banking/mobile-banking-pebble-preview-960.jpg)

### [White-Label Mobile Banking in 2026: The Ultimate Guide](https://crassula.io/solutions/mobile-banking-app/guides/white-label-mobile-banking/)

[**Explore all guides**Licensing, payments, cards and core banking, explained by our team.](https://crassula.io/guides/)

Mobile Banking App

## FAQ

The questions teams ask us before a first call.

[**Not covered here?**Bring your question to a demo with our team.](https://crassula.io/request-demo/)

How can we adapt the apps to our brand?

Configure the application identity, colours, appearance and language defaults. Agree any changes to layouts and customer journeys during product scoping. Branding settings are separate from banking rules and provider connections.

Which customer channels are supported?

Offer branded iOS and Android apps alongside a web interface. Each channel can present the banking capabilities configured for your product, with navigation and layouts suited to its platform.

What is connected behind the app?

The app presents account, payment, card and verification capabilities configured in Crassula. Agree the required modules, supported providers and customer journeys for your programme.

Can we connect our existing systems?

Review your current architecture, authentication and account/payment workflows with our team. Integration scope depends on those systems and the capabilities your app needs; compatibility is assessed rather than assumed.

What determines the release plan?

Branding, enabled capabilities, provider integrations, validation and publishing responsibilities determine the delivery scope. Agree these dependencies with the team before setting the release plan.

Mobile Banking App

## Put your next banking experience in their hands.

Walk through the app, brand configuration and connected capabilities with our team.

[Explore your app experience](https://crassula.io/request-demo/)

[**Know what you pay**One setup fee and a monthly plan with accounts and transactions included.*See pricing →*](https://crassula.io/prices/)
[**Start with the API**Documented endpoints for accounts, payments, cards and customers.*Explore the API →*](https://crassula.io/features/api/)