Mobile banking app development services
Building a banking app means getting a lot right at once: security, compliance with UK regulations, speed, and a user experience that feels effortless. But misaligned teams, slow comms, and poor execution often get in the way.
At Vention, we offer end-to-end mobile banking software development services that bring real engineering peace of mind. Clear comms, strong delivery, no surprises. Just a reliable, high-performing app your customers can trust.
We make mobile banking application development services simple, smooth, and risk-free
Years delivering bespoke fintech solutions
Fintech projects have leveraged our mobile banking development expertise
Our clients save annually with our services
UK-based CTO and engagement managers to ensure a first-class client experience
Deep technical expertise, including AI/ML, AR/VR, IoT, and blockchain, to drive innovation in banking apps
Support with compliance across FCA, PSD2, GDPR, SCA, and open banking standards
ISO 27001-certified to protect your data and IP at every stage
Helping UK and global fintech innovators build applications that users love at first click
Our mobile banking app development services
Mobile banking strategy discovery
Vention helps you get on firm ground before a single line of your app’s code is written. We help sharpen your product vision, validate the concept, define the right feature set, choose best-fit technologies, and plan for a step-by-step, risk-free application development process.
Custom mobile banking app development
Building bespoke mobile banking solutions with Vention couldn’t be easier. Our team handles the entire process, developing your app from discovery to coding and launch. We make the journey straightforward and stress-free, delivering a secure, feature-rich app with a seamless user experience.
Integration
We help ensure your app users can access their financial records and services in real time. That includes smooth integration with third-party services, payment gateways, core banking systems, and open banking APIs.
AI enablement
Innovation should support your customers, not distract them. From AI-powered chatbots to intelligent spend analysis and budgeting tools, our engineers integrate artificial intelligence where it adds real value, helping your users reach their financial goals.
Support and maintenance
Error-prone or sluggish mobile banking apps can quickly erode customer trust. Vention provides ongoing support and maintenance services, including app monitoring, timely troubleshooting, and resolving performance or security issues. We also handle necessary updates and upgrades, ensuring your customers enjoy reliable, uninterrupted access to their finances.
Types of custom mobile banking solutions we deliver
Our team works hand in hand with your stakeholders to capture every requirement and choose the technologies that deliver a top-notch look and feel, supported by fast and seamless backend performance.
Retail banking apps
We support established banks with modern, feature-rich mobile applications for balance checks, payments and transfers, card management, and branch or ATM mapping. Our retail banking apps help you attract new customers and strengthen loyalty among existing ones.
Challenger and neobank apps
We partner with digital-first banks to design and build sleek, high-performance apps that include instant payments, real-time analytics, AI-powered chatbots, and flexible backends ready to scale. From first concept to post-launch growth, we support fast rollouts, seamless updates, and innovation that keeps users engaged.
Business and corporate banking apps
Deliver best-in-class services to B2B clients with secure, multi-user corporate banking apps. As a mobile banking app development company, our team helps build business banking apps that offer streamlined payments and invoicing, native integration with accounting and ERP systems, advanced reporting, and strong security features that banking demands.
Budgeting and personal finance management apps
We design smart tools to help users better understand, plan, and optimise their finances. Our apps aggregate data through open banking APIs and combine intuitive design with key features such as spend categorisation, budgeting, forecasting, and personalised financial insights.
Payment apps
We enable fast and secure money movement between individuals and businesses. Our minimalistic and intuitive payment apps make peer-to-peer transfers, shared payments, merchant payments, or cross-border transactions effortless.
Investment management apps
We make it simple for users to invest in stocks, ETFs, and funds, and to manage portfolios efficiently. Vention develops investment apps, equipping them with mobile-first interfaces and features for automated investment, visual dashboards for performance tracking, and AI tips to support both newcomers and seasoned investors.
Banking apps for teens
We empower teenagers to manage income, spending, and savings through secure, parent-guided applications. To make financial learning more engaging, you get tailored banking apps for youth with debit card controls, savings features, spending insights, card locking, and gamified elements.
We’ll build it from the ground up. Fully shaped around your vision, goals, and technical requirements.
Core features of mobile banking apps
We help you build banking apps with engineering peace of mind, so you can offer your customers peace of mind over their finances.
In the UK, over 73 per cent of consumers choose mobile apps as their primary way to interact with their banks. That makes your app the main touchpoint between you and your customers. To meet expectations, it’s essential to make your application visually appealing, intuitive to use, and packed with the right set of features.
Bank account and personal finance management
-
Ordering new cards and cancelling existing ones
-
Checking debit card/credit card balances and transaction history in real time
-
Basic budgeting with spend categorisation and limits
-
Automatically transferring spare change to savings pots or putting aside money to pots or spaces with particular targets
-
Monthly, weekly, or daily summaries of spending
Payments and transfers
-
Instant domestic transfers with Faster Payments, plus international payments
-
Standing orders to pay rent, mortgages, subscriptions, donate, or transfer money to savings accounts
-
Depositing cheques with a photo
-
Peer-to-peer payments and bill splitting
Security
-
Biometric login functionality with Face ID or Touch ID to add one more security layer in addition to the password
-
Two-factor authentication for high-risk actions, like transferring large sums of money
-
Instant notifications for any card activity, including payments, transfers, and potential fraud
-
Card freeze/unfreeze in case of loss
Customer support and services
-
24/7 in-app support with AI chatbots, plus resolving escalated issues with human operators
-
Access to self-service guides on services, issue troubleshooting, and answers to popular questions
-
Information about nearby bank branches and ATMs
Investment features
-
Providing a comprehensive view of portfolios, stocks, and assets
-
Automatic investment, like monthly contributions to a particular ETF
Additional value-adds
-
Viewing accounts from other banks in one app through open banking
-
Earning cashback and rewards through partner perks
-
Multi-currency accounts and wallets
Mobile banking app development costs
Accurately pricing a bespoke mobile banking app starts with understanding your goals, requirements, and technical needs. From there, we help set clear expectations and guide you through the key decisions that shape your project.
Factors to consider
App type and complexity
The type of app directly impacts the scope of features, the tech stack, and the level of security needed. For example, a basic app showing balance and transaction history will cost significantly less than one with advanced functionality such as financial planning or investment tools.
Platform and technology
Native apps for iOS and Android can offer a superior user experience, but developing them separately is more costly than building a cross-platform solution (although it may have a slightly less refined look and feel).
Additional technical expenses can include project management, prototyping and testing tools, hosting, and third-party integrations.
Team composition
To build a mobile banking app, you’ll need a skilled team of project managers, designers, developers, QA engineers, and DevOps specialists. You can either hire in-house or outsource. In-house teams often suit larger budgets, while outsourcing is typically more cost-effective when working within tighter constraints.
Timelines and costs
Costs: from £15,000-£35,000 for a banking app with simple functionality to £190,000 for a complex application with advanced features.
Timeframe: from 2-5 months to develop an app with basic features to 8+ months to build a solution with complex functionality.
Hear from our expert
“Mobile banking app development costs can climb fast if too many features are added or the team is larger than necessary. To keep budgets on track, we encourage clients to define clear objectives from the start. With a solid understanding of requirements, we can reduce scope creep and avoid costly rework.
For many of our UK clients, we recommend starting with a workshop and MVP. By focusing on critical features and essential compliance first, then scaling based on feedback or funding, we create a clear path to growth while protecting resources.
In the end, it’s not about cutting costs. At Vention, it’s about making every pound go further.”
Jovi Francis
Senior Business Development Manager in
the UK at Vention
Mobile apps that deliver value to banks and clients alike
Benefits for banks
Acquiring new customers and gaining market share
A competitive, well-designed app makes your bank more visible and attractive to new clients, who now expect instant account opening, real-time access to funds, and seamless integration with payment services.
Data-driven cross-selling
Every interaction with your app creates valuable insights into customer behaviour, from spending patterns to savings habits. This data can be used to offer timely, personalised services such as credit products or investment opportunities, boosting revenue potential.
Boosting customer experience and engagement
Your app is a high-frequency touchpoint between your clients and your bank. Every app login is a chance to push (but don’t go too far!) personalised offers, reward schemes, or helpful tips, thus building trust, increasing engagement, and improving retention.
Benefits for clients
Real-time, transparent control over finances
Tracking money in real time (where it goes and when) with split-second notifications, plus the ability to freeze or unfreeze cards instantly, all to easily trace usual activities and spot suspicious ones, giving your customers a huge security and trust boost.
Speed and convenience for everyday tasks
A feature-rich, intuitive app backed by excellent customer support means no waiting for branch opening hours, no queues, and no mountains of paperwork. Payments, transfers, bill management, and even cheque deposits can all be completed in seconds, using one application: yours.
Reduced dependence on physical banking
Reaching clients in rural or remote areas with no or few physical branches on site has never been easier. An interactive mobile application removes the need to travel to a branch and allows your customers to resolve banking tasks from anywhere.
Mobile banking app development strategy that never fails
Creating a mobile banking app is no small task, especially in the competitive UK market, home to many of the world’s leading fintech startups. From gaining a deep understanding of customer needs to meeting the highest security standards, there’s a lot to get right.
At Vention, we turn that complexity into a transparent, structured process. We help you avoid common pitfalls and bring your product to market in its best form.
Defining your value proposition
Get to know your audience to spot the gaps others in the UK fintech market miss. Based on your target users’ needs, preferences, and habits, define what sets your mobile banking app apart, outlining the key features and services that will distinguish it from the competition.
Capturing requirements
That’s where we step in. Our team helps transform your business requirements and objectives into a clear technical specification of your future banking application. We prioritise features that reflect your customers’ needs and core value proposition.
Planning the projects
We outline the plan for your application development, factoring in possible risks and challenges and defining costs, timelines, and clear deliverables at every stage. You get a transparent step-by-step roadmap up to your product launch.
Compliance and security considerations
Relying on our hands-on experience in banking software development, we bake compliance and security into our mobile banking apps before writing a single line of code. Working closely with your team, we help you translate regulations (FCA, PSD2, GDPR, SCA) into real, in-app protections like multi-factor authentication and encryption that keep your users safe.
Choosing optimal technologies
Whether you opt for native apps for iOS and Android or a cross-platform solution for lower costs, we draw on our extensive mobile development expertise and recommend the tools that best balance technical demands, budget, and user experience.
UI/UX design
User expectations today are high. Poorly designed journeys or clunky interfaces lose customers fast. Our designers create smooth, intuitive experiences that reflect your brand and keep users engaged.
Mobile application development and testing
We use agile methods to adapt quickly as your app evolves. Our engineers rigorously test for performance, usability, and security. With nearshore teams based just one to two hours ahead of the UK, we ensure responsive, delay-free collaboration.
Launch and support
When it’s time to launch, we manage every step to ensure your app goes live securely and smoothly. Post-launch, we can stay with you upon request to keep your app secure and performant.
Hear from our expert
"Creating a mobile banking application calls for a considered, strategic approach to deliver both exceptional performance and uncompromising security. As an experienced mobile banking application development company, we begin with a robust architectural design, adopting microservices to optimise the efficiency of each component. By turning to trusted cloud platforms such as AWS or Microsoft Azure, we ensure your application can adapt easily to changing user demand.
In line with UK and EU financial regulations, including GDPR and the Payment Services Regulations 2017 (which implement PSD2), we implement encryption, secure data storage, and multi-factor authentication. Regular security audits and clear, comprehensive documentation mean your mobile banking application remains secure and compliant.”
Global Delivery Manager
Discover what your road to launch really looks like
We’ll help you validate your idea, design mockups and prototypes, and map out a clear, structured path to launch.
What our clients say
“The breadth and depth of talent that they have on tap is impressive, account management is also excellent - if any issues arose, they were swiftly dealt with in a positive manner. We were able to put our MVP into production within 3 months of inception and continue to issue new releases on a regular basis. This has allowed us to capture new clients on an ongoing basis.”
Robert Knight
“We are a company working in Open Banking and powering the systems that enable real-time credit and risk decisions. We engaged Vention to provide 4 individuals who could augment 2 of our teams. The first team being our development team (writing for cloud based microservices). The second team being our data science team (providing data insights, models and ML to open banking data).
We achieved the timelines we needed. This process would not have been a success without Vention. Their English was fantastic and they raised any concerns, ideas or concepts well. They solved problems in a quick and efficient way. They are a great organisation to deal with.”
Lee Tupper
“We specialize in Retirement Readiness and Financial Wellness services. The project was to deliver a new mobile application for iOS and Android in React Native. This included an API layer in C# and a backend administrative portal in React, deployed using CI/CD on AWS and our existing SQL Server database infrastructure. We were very happy with the initial specification, the design prototypes and the accuracy of time estimates on the sprints. The app was completed and we decided to continue the relationship. The app is still in beta mode however we are well on the way on the 2.0 release.”
Geoffrey Teale
“We enable businesses to build great investment experiences for their end customers – seamless, secure and across international borders.
The most impressive thing is the way we work together. Vention engineers are fully integrated within Upvest and contribute to many aspects of our product. Vention engineers have challenged ideas and demonstrated a product mindset. Not only have they executed the tasks given, but they've also shown an understanding of the product's impact and developed the functionality taking into account the domain requirements and user experience.”
Technologies and tools for banking mobile apps
We rely on tried-and-tested technologies that, in the hands of our experienced developers, turn your boldest ideas into fully featured, secure, and high-performing mobile banking apps.
iOS
Swift
SwiftUI
SwiftData
ARKit
Objective-C
Core Data
Android
Kotlin
Java
Cross-platform
React Native
Flutter
.NET MAUI
UI/UX design
Design: Figma, Zeplin, Sketch, Adobe XD, Marvel, Balsamiq, Principle
Research: Maze, Miro, Hotjar, Google Analytics
Animation: Adobe After Effects, Cinema 4D, Blender, CapCut
QA and testing
Tools: Fiddle, Vysor, Reflector, Charles Proxy
Automation: Appium, Ranorex, Selendroid, Robotium, UI Automator
Emulators: Android Virtual, XamarinXcode Simulators, Device, Genymotion
Reporting and distribution: Fabric, Firebase, TestFlig
Security
TLS/SSL
AES encryption
OAuth2
JSON Web Tokens
DevOps
Jenkins
Travis CI
CircleCI
Docker
Kubernetes
Let’s put your bank in your customers’ pockets
Visit our London office or book an online meeting. We’d be glad to hear about your idea.
Churchill Place
London E14 5RE, UK