• growth
  • clutch
  • cnbc
  • g2

Hire Mobile App Developers

Hire Mobile App Developers on a full-time, hourly, or fixed cost project basis and manage them as your extended team.

ISO 9001 & 27001 Certified with over 98% 5-Star Rating

  • growth
  • clutch
  • cnbc
  • g2
  • msme
awards

Are you interested to learn more about our app development services?

What happens after you contact us?

Our solution experts will answer your questions in a secure online meeting. You will get good information and honest advice in plain English. You are then free to choose how to move forward.

Our clients include 150 Global Brands, Silicon Valley Founders

Mobile App Development Services

Legacy App Moderniza

Legacy App Modernization

Kickstart your digital transformation journey with our agile and resilient legacy application modernization offerings. We help organizations transform their legacy application portfolio by employing cloud and SaaS-based business models through deep automation.

Android App Development

Android App Development

At Capital Numbers, we develop feature-packed futuristic mobile apps for the entire range of Android devices across the globe. Our skillful Android App developers put together an exclusive blend of technologies to design and develop Android apps that your clients will choose to keep.

UI/UX Design

UI/UX Design

Blending the latest design trends for your industry vertical, end-user needs, and best user experience practices, we carve a user first-interface and visually incredible customer experience for your mobile app.

Power management, notification & geofencing

Power management, notification & geofencing

Get started with geo fencing apps to boost sales and increase engagement. Our seasoned developers integrate the geofencing API or SDK with existing software, enabling you to reach mobile users via triggering notifications, alerts, or in-app events.

Blockchain

Blockchain

Tap into the decentralized ecosystem with our blockchain app development services. We develop business models built on the next-gen decentralized blockchain networks leveraging our rich expertise across all major blockchain platforms, including Corda, Ethereum, Solidity, and more.

Native and cross-platform solutions

Native and cross-platform solutions

Empower your business with our robust and scalable Native and cross-platform development solutions. Whether you wish to connect with a broad user base across various devices and platforms or craft apps for specific devices and mobile app platforms, our experts will handle all your requirements.

Consulting & Prototyping

Consulting & Prototyping

Our Consulting & Prototyping services cover everything from understanding business needs, choosing the right technology, developing a prototype, gathering user feedback, improving UX/UI design, and testing the market to ensure successful mobile app development.

Embedded Android Development and Customization

Embedded Android Development and Customization

With versatile domain knowledge, Capital Numbers offers advanced Embedded Android & AOSP Customization services to clients across the globe. We excel in providing Android Operating System Customization for Android and Linux systems at all levels, including HAL & Driver, Platform & Hardware, Framework & Applications.

iOS App Development

iOS App Development

As a full-stack iOS app development company, we build feature-rich, engaging iOS apps for all Apple devices. Our talented iOS app developers will help you with every step, from choosing the right technology stack and crafting an immersive UX to iOS app testing & support services.

Second platform app development

Second platform app development

You no longer have to forgo one platform over another due to budget constraints. Whether you own an iOS app and looking for an Android version or vice versa, we can leverage existing UI and APIs to build the 2nd app for you, so you can reach a larger audience while remaining on budget.

Automated QA & Testing

Automated QA & Testing

Get bug-free mobile apps that ensure a great experience, translating into user satisfaction and retention. Our test automation experts offer Android and iOS App Testing Services to confirm seamless functionality, performance, and compatibility of apps.

Maintenance & Post Warranty Support

Maintenance & Post Warranty Support

Let your mobile app remain competitive, robust, and secure at all times with the help of our Mobile App Support and maintenance services. From fixing bugs, new feature implementation, and OS and library updates to UI/UX and performance enhancements, we’ve got you covered.

Our Mobile App Development Process

01

Requirement Gathering

Conduct App Discovery Workshop

  • Carefully understand your expectations about how your app must look
  • Discuss the app's user interface, features, user flow, and technical implications.
  • Proposing a solution and creating a final prototype of the app

02

Test Strategy

App Development Consultation

  • Identify close competitors
  • Establish goals and objectives
  • Ask for your feedback

03

Test Cases Design

Wireframing & Designing

  • Prepare Blueprint structure
  • Wireframing each screen
  • Design App

04

Test Execution

Development

  • Start coding the app
  • Layout main sections
  • Ask for your feedback

05

Bugs Reporting

Testing

  • Conduct Application Testing
  • Make it 100% bug-free
  • Ask for your final approval

06

Retest & Test Closure

Deployment

  • Deploy the app to your server and app stores
  • Ensure app availability for users
spiral-img

02

App Development Consultation

  • Identify close competitors
  • Establish goals and objectives
  • Ask for your feedback

04

Development

  • Start coding the app
  • Layout main sections
  • Ask for your feedback

06

Deployment

  • Deploy the app to your server and app stores
  • Ensure app availability for users

Type of Apps We Work For

  • Native Mobile App Development

    Native Mobile App DevelopmentWe design and develop intuitive, fully functional, high-performance native mobile applications for Android, iOS, and Windows platforms.

  • Hybrid Mobile App Development

    Hybrid Mobile App DevelopmentOur certified hybrid app developers build engaging hybrid mobile applications that drive customer engagement. We work on various tools and frameworks, like React, Ionic and Phonegap, Sencha, and more.

  • Progressive Web App Development

    Progressive Web App DevelopmentAs a leading progressive web application company, we are at the forefront of delivering fast, reliable, and lightweight PWAs that seamlessly adapt to multiple devices and screen sizes.

  • Wearables and Embedded Software

    Wearables and Embedded SoftwareWe can help you build companion apps for numerous wearable devices and integrate them with proprietary peripherals or smart devices.

Technologies We Use

Mobile Development Languages & Tool Kits
Backend Programming Languages
Databases and data storages
  • SQLite
  • Realm
  • Firebase
  • Amazon RDS
  • Amazon REDSHIFT
  • Amazon DocumentDB
  • AWS Elasticache
  • Azure SQL DB
  • Azure Data Lake
  • Azure Blob Storage
QA Tools
  • TestFlight
  • XCTest
  • APPTester
  • Detox
  • Appium
  • EARLGRAY
  • .NET Foundation
  • JUnit5
  • ENZYME
  • mockito
DevOps
  • AWS
  • Azure
  • GCP
  • Docker
  • Kubernetes
  • Ansible
  • Puppet
  • Chef
  • Terraform
  • Jenkins
  • CI/CD
Monitoring Tools
  • Grofana
  • ZABBIX
  • Elastic Stack
APIs
  • GPay
  • Apple Maps
  • Google Maps
  • Keychain API
  • REST: API
  • Apiary

How Much Does an App Cost?

Customize the features of your mobile Application & get the cost estimation to your email inbox.

Delivery applications usually consist of two separate apps:

For customers and for couriers. Must-have features for delivery apps are geolocation (Google Maps, MapKit), email messaging (SendGrid), payments (Braintree, Stripe), analytics (Mixpanel), and others.

1875-3125 hours

Average development time

$46,875-$78,125

Average development cost

Marketplace apps usually act as intermediaries between two parties:

Buyer and seller of goods or services. These solutions should be lightning-fast and have robust analytics powered with machine learning (Amazon ML).

1125-1875 hours

Average development time

$28,125-$46,875

Average development cost

On-demand taxi apps usually consist of two separate in-app roles or apps:

Driver’s and Passenger’s. Besides basic functionality, taxi apps require map APIs (Google Maps, MapKit), payment gateways (Stripe, PayPal), and in-app calling feature integration (Twilio, Bandwith).

1650-2750 hours

Average development time

$41,250-$68,750

Average development cost

Booking apps have to be data-driven and feature-rich to meet users' expectations.

They should have a robust search engine (Elastic Search), flexible push notifications (Amazon SNS, Firebase Cloud Messaging), payment gateways (Stripe, Braintree), etc.

1350-2250 hours

Average development time

$33,750-$56,250

Average development cost

When creating media streaming apps, we take care of seamless content delivery and work with trustful media processing platforms (Livestream, Brightcove).

Streaming apps also require data storage (Cassandra, MySQL), geolocation (Google Maps, MapKit), etc.

1725-2875 hours

Average development time

$43,125-$71,875

Average development cost

Our engineers build any type of fitness applications:

From nutrition to personal workout and activity tracking apps tailored to Android and iOS. Main features can be sync with native health services (HealthKit, GoogleFit), geolocation (Google Maps, MapKit), etc.

1350-2250 hours

Average development time

$33,750-$56,250

Average development cost

3 Steps To Build Your Custom Team Of Mobile App Developers

3step-icon-1
01

Choose Mobile App Developers

We have a team of 100+ Mobile App developers. You can interview and shortlist candidates from our in-house tech pool and decide who joins your team.Want to start with this step? Request Resumes >>

02

Integrate Team into Your Projects

Our developers have now become a part of your team. They work dedicatedly for you, and you can communicate with them directly. You can start assigning them tasks and get daily updates along with a timesheet.Have you got questions about working with remote developers? Book a no-obligation call >>

3step-icon-2
3step-icon-3
03

Scale On-demand

We also let you scale on-demand, grow your team during high-volume periods, and ramp down team size when needed. In short, we make it easy for you at every step like a true partner on whom you can rely.

Why Hire Dedicated Team from
Capital Numbers

  • We Match Your Needs

    By partnering with Capital Numbers, you'll get access to our 700+ in-house developers and will be able to fill any role immediately.

  • You’re in control

    You get a dedicated mobile app development team entirely under your control but without the administrative issues and hassles. You control your team’s work, and all processes are fully transparent, so you know exactly who’s doing what, when, and why.

  • Work with Experts

    Hire app developers across 7+ skill sets: Access varied tech stacks and build your mobile apps in Swift, Java, Flutter, Kotlin, React Native, Xamarin, Ionic, and many other languages and frameworks.

  • Hassle-free production

    Our HR specialists, office managers, and system administrators make sure your development team’s working conditions are perfect.

  • Low Attrition

    Corporate outings, regular training, engagement activities, career counseling, grievance handling – our HR veterans will sure every developer you hire with us stays motivated to try hard to make you successful.

  • Zero Overheads

    Payroll, taxes, benefits, sick days, and vacations for your team – we’ve got you covered.

  • 50% Cost reduction

    Our clients have been able to save up to 50% in labor costs.

  • 4.8/5 Rating on Clutch

    Our clients highlight our ability to build great personal relationships with them, except for the excellent code quality.

  • 75% of the company – senior and middle developers

    We invest in attracting the best talent from the market. We hire only strong middle and senior app developers and no juniors.

  • ISO 27001 Information Security

    Capital Numbers adheres to ISO 27001 certified information security standards to ensure that your IP and investment are protected.

Case Studies

sliding img

CASE STUDY

iOS Swift Microsoft-Bot-Framework NodeJS Cosmos-DB Artificial-Intelligence

Tech Stack: iOS, Swift 3, Microsoft Bot, Cosmos DB, Node JS

A client contacted us to help build an AI-enabled “stop smoking” coach. This was envisioned as an app users could access to give them encouragement toward fight their addiction to cigarettes.

Read More
sliding img

CASE STUDY

Payment Gateway Services Development and Maintenance

Tech Stack: Swift, Objective C, Java, SendGrid, Amazon SMS API, Android, iOS

This Fintech app simplifies payment processing for merchants across industries like eCommerce, Retail, Hospitality, etc. From big brands to little boutiques - all can use this solution to process contactless payments for customers.

Read More
  • star-icon-new
  • star-icon-new
  • star-icon-new
  • star-icon-new
  • star-icon-new

Great Reviews

97 Out Of 100 Clients Have Given Us A Five Star Rating On Google & Clutch

James BurkeCapital Numbers 5/ 5
Charles Douglas-OsbornCapital Numbers 5/ 5
P. AtturCapital Numbers 5/ 5
Jorge QuinteroCapital Numbers 5/ 5
Ryan DaviesCapital Numbers 5/ 5
Katherine MaoCapital Numbers 5/ 5
Read More Reviews
  • Read Capital Numbers reviews on G2

We’d Love To Hear From You

Get Custom Solutions, Recommendations, Resumes, or, Estimates.
Confidentiality & Same Day Response Guaranteed!

What can we help you with?

Our Consultants Will Reply Back To You Within 8 Hours Or Less

  • Shovan
  • Dibakar
  • Indrajit
  • Avishek
700+ In-House Experts
25+ Awards in the last 9 Years
237+ Clients Worldwide
150+ Five Star Reviews On G2, Clutch, Google and GoodFirms
Attach files Select files from your   or   or 

    Recent Awards & Certifications

    Step Into Our Development Center

    This website collects cookies to deliver a better user experience. Read Cookie and Privacy Policy