Web Application Development Services

We develop custom web applications for Startups and Businesses in many industries, including vital ones like Healthcare and Education.

We cover full software development cycle or each stage separately, including UX/UI Design, Software Architecture Design, Software Development, Maintenance, and more.

Free Consultation Case Studies
Seven / Expertise / Web Applications
HIPAA
CCPA
GDPR
ISO/IEC 27001
DSS

Our Custom Web App Expertise

Custom Software Development

We specialize in developing tailored Web Applications from scratch or taking over existing deliverables from other developers and designers at any stage of the project lifecycle.

We have expertise in developing a wide variety of custom software - from ERP tools and CRM systems to Video Communication software and more. Scroll down to see more of what we do.

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Customer Portal and Order Management Software
Custom solutions that enhance customer interaction and streamline order processes. Integrated customer portals provide a user-friendly interface for order tracking, communication, and service management, tailored to the specific needs of the business and industry.
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E-Commerce and Marketplace Software
Custom software to get an edge in competitive markets. We specialize in developing tailored SaaS, PaaS, On-premise platforms to help businesses boost revenue, increase customer satisfaction, reach new audiences, and save time and money.
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Video Chat Software
WebRTC-based solutions that offer real-time Video and Audio communication with additional capabilities, including integrated payments. Custom software to provide seamless communication and monetization opportunities for businesses and institutions within a wide variety of industries.
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Healthcare Solutions
Custom solutions for Healthcare industry, including Telemedicine, Clinic Management Software, EHR, HIE, and more. Rely on our expertise to get secure custom software that complies with HIPAA, GDPR, CCPA, HL7/FHIR & more.
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Education Solutions
Secure and scalable solutions for EdTech. Learning Management Systems (LMS), Online Tutoring tools, Assessment solutions, and much more. Benefit from our expertise in developing custom products for schools, universities, and businesses.
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Enterprise Applications (EAS, EAI)
Custom solutions tailored to the specific needs of your organization. We will apply our proven expertise in developing Enterprise Application Software and performing Enterprise Application Integration to help streamline business operations and foster digitalization, based on the business needs, goals, and plans.
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Dashboards and Analytics Software
Tailor-made tools designed to streamline your operations, enhance decision-making, and integrate smoothly with your systems to visualize key metrics and uncover actionable insights, directly aligned with your business goals. Elevate your data strategy with custom analytics crafted for your unique needs.
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Progressive Web Apps (PWAs)
Custom software to help businesses overcome digital challenges and connect with their audience. Leverage our expertise in developing PWAs to get tailored solution for fast, reliable, and engaging customer experience.
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Recent Case Studies

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Online Clinic

B2B Saas-Based platform for providing online Healthcare services with secure Audio & Video communication & Electronic Patient Health Records

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Online Learning Tool

SaaS-based e-Learning Platform built on a patented technology for simplifying live note-taking and increasing memorability for Tutors and Learners

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Online School

GDPR-compliant solution that acts as an online environment for managing curriculum and student/teacher performance

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B2C Counseling Tool

Web Application that connects Service Provider with Customers. It provides intuitive Pay-per-minute / pay-per-session communication and financial management thanks to 3rd-party services integration

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E-Form Builder

A B2B platform that helps simplify the e-form management for healthcare practitioners and administrators, compliant with the US healthcare regulations

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Anti-Aging Therapy Apps Based on DNA Data

A leading Life Science, Bioinformatics and Genetics Data Analytics company from Switzerland needed to display all the data representation of their clinical research on their users’ devices

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HIPAA Compliant App for Accessing Vital Info from Health Information Exchange

Web and Mobile applications provide first responders and EMS personnel with access to critical patient information that resides within the Health Information Exchange

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INDUSTRY

Blockchain Social Network with the Internal Tokenized Marketplace

This project is an eradicative transformation of the
successful social media created for our client that after years of functioning needed modernization

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Video and Audio Chat Monetization Software

For the last 10 years, we have received many requests to develop a P2P video, audio, and text communication tool with pay-per-minute billing integration. We developed a custom software core that is designed to be completely architecture-independent

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INDUSTRY

Stock Exchange for Songs & Music Streaming Service

Our customer needed to develop the Stock Market Application that connects musicians and their fans. Fans can support music creators by investing in their songs and earn money on that further

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Business Intelligence Tool

Activation Products came to SEVEN with the request to develop Business Intelligence software that determines and maintains the analysis of sales instruments (website, social networks, call-center, sales brokers, corporate sales in bulk) across all regions

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INDUSTRY

IoT Application for Environmental Engineering Company

SEVEN team is always thrilled to work on environmentally-friendly projects. This time we’ve built IoT software for the company producing innovative, solar-powered, wireless devices for real-time gas well monitoring

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INDUSTRY

Cloud SaaS HR Data Analytics Platform

Client’s purpose was to create the human resources software for analyzing a huge amount of HR data and to display it in easy to understand manner

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CRM, ERP, POS for Automotive Business

The application provides inventory, accounting and business management services for small and medium-sized automotive parts shops. It is an all-in-one solution that combines ERP, CRM, Point of Sale and Back Office Management tools

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PPM Online Web App for Psychic Industry

Having extensive expertise in creating pay-per-minute / pay-per-session audio / video chats, our team transformed and modernized popular resource for providing online psychic reading services for the company from New Zealand

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ERP System & Wardrobe Planner PWA for a Furniture Company

For our client, a big family-run furniture company from the UK, we’ve created a web-based ERP system that automates the whole production cycle and a Progressive Web Application for quick and effective wardrobe building

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Step-by-step Order Calculator PWA

For our client’s new product line, the SEVEN team has developed an easy-to-use Progressive Web Application offering users accurate shopping lists for their flexi-strip lighting projects

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INDUSTRY

Comparison Shopping Engine and Website

Shopping comparison engine and website for fashion. Its smart algorithms search for and compare prices from local stores, 300+ retailer websites like ASOS, Nordstrom, Net-a-Porter and Farfetch, and marketplaces like Amazon and eBay to give users the lowest price

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Coaching Marketplace and Professional Fintech Social Network

Our team gets excited when the client turns to us for extraordinary ideas that combine different software types and solutions. This project was an amalgamation of a professional social network and an appointment booking system

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Customer Portal for Audio-Visual Systems Integrator

The platform allows enterprise customers to easily manage multiple orders and thousands of pieces of equipment at the same time

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We Develop Web Apps For:

  • HEALTHCARE
  • HEALTH AND WELLNESS
  • PHARMACEUTICALS
  • EDUCATION
  • E-COMMERCE
  • SOCIAL NETWORKING
  • MARKETPLACES
  • AUTOMOTIVE
  • FINANCE
  • GOVERNMENT AND PUBLIC SECTOR
  • TELECOMMUNICATIONS
  • HOME SERVICES
  • PROFESSIONAL SERVICES
  • LEGAL SERVICES
  • SPORTS AND FITNESS
  • ENVIRONMENT AND AGRICULTURE
  • LOGISTICS AND SUPPLY CHAIN
  • AVIATION AND AEROSPACE
  • NON-PROFITS
  • STARTUPS

What Kind of Software Development Approach Are You Interested In?

Using our solutions

Modular approach based on our existing architecture cores to reduce time and costs of software development.
CONTACT US

Development from scratch

Full-scale development process with every element designed and built from zero, including the core, etc.
CONTACT US

Core Services

Web Application Consulting

We will analyze your business, goals, needs, existing deliverables, and suggest the optimal approach to custom software development.

Custom Software Development

Custom projects tailored to unique needs of an organization. Based on the business goals and needs, we will combine development from scratch and integrating third-party API.

Web App Software Design

Based on your business needs and project’s state, our experts can cover UX/UI Design, Software Architecture Design, Software Prototyping, and more.

Quality Assurance and Maintenance

Our team will take over the project and ensure that it, through testing and monitoring, offers seamless experience to the customers.

Related Services

Regardless of the stage of your project, we can take over and complete the development of your software. We offer a comprehensive list of services that can be a part of one process, or be performed standalone using the pre-existing deliverables that you received from other teams.

Software Documentation

We audit your software and existing docs and write up-to-date system descriptions, design decisions, architecture descriptions, technical help guides, user manuals, tutorials, or user guides following ISO / IEC / IEEE Standards if required

Independent Software Audit

If you already have software at the release stage (α or β), we are experienced in independent pre-production software audits and identifying potential issues and risks that may impact the project's success post-release

Software Issues Resolution

If your software has functional, performance, security, or compliance issues, we identify and resolve them via logic reworking, code refactoring continuing maintenance and ongoing support

Our Approach to Web Application 
Development and Support

Each step can be the start of our collaboration, based on the state of your idea, project, and documentation. We work with third-party designs, code, and software, helping our clients see the project through.

Requirements

Design

Development

Testing

Deployment

Maintenance

Where Do We Go From Here?

Learning About Your Needs

We will provide detailed breakdowns and specific course of action based on your timeline, budget, selected technology, and much more.

Documentation & NDA

You will be able to share any existing deliverables such as documents, designs, and code, with the assurance of an NDA to protect your intellectual assets.

Planning and estimates

Our analysis will cover all available data, resulting in a thorough functional decomposition and an accurate, detailed estimation for your project.

Financial Proposal

We’ll prepare Basic, Recommended, and Advanced cost offers for you to choose from, providing options that scale with your business needs and budget considerations.

Kick-off

Post-contract, you'll be introduced to your project's dedicated team. We will start the work, ensuring complete transparency and involving you throughout the process.

Schedule free Call

Cloud-Based Web Apps We Specialize In

B2B (Business-to-Business)

Software that is targeted at providing paid services to consumers, e-Commerce, and customer support.

B2C (Business-to-Consumer)

Software where a business sells software (SaaS), goods, and services to another business.

C2C (Consumer-to-Consumer)

Online marketplaces for consumers to buy, sell, or exchange goods and services with each other.

SaaS (Software as a Service)

Software as a service (SaaS) is a popular delivery model of cloud-based B2B, B2C, and C2C software licensed on a subscription basis and centrally hosted. Well-suited for startups.

Web App Components We Cover

We develop these components from scratch, or take over the existing infrastructure or application 
and cover any of these components separately, or in addition to the web app development.
Server infrastructure

Front-end

Back-end

Database

API

3rd-party services

Technologies we use

We conduct technical research considering requirements, business goals, scaling plan, and more. We compile a comparative table of optimal technologies for your specific software product.
Based on the recommendations of our team, we advise on the most suitable technology stack, taking into account all the aspects mentioned above.
Front End

Back End

Mobile

Server Cloud

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Front End

Languages & Technologies

JavaScript

HTML5

CSS3

SASS

LESS

TypeScript

Main Libraries

RxJS

NgRx

Angular Universal

Redux

Frameworks

Angular

React

Preact

Vue.js

Ember.js

UI

Angular Material

Bootstrap

Material UI

Package Manager

Gulp.js

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Java Back End

Programming Language

Java

IDE

IntelliJ IDEA / Eclipse or other

Technologies

RESTFull

WebSockets (STOMP+AMQ)

Frameworks

Spring JPA

LocalStack

Spring Boot

Spring Security

Spring MVC

Spring Data

Hibernate

Tools & Utilities

Maven

Git

Postman

Docker

Sonarqube

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PHP Back End

Programming Language

PHP

IDE

PHPStorm

Libraries

RESTFull

WebSockets

Libraries

Laravel Passport

Laravel Permission

L5 Swagger

PHPUnit

Frameworks

Laravel

Symfony

Phalcon

Codeigniter

Zend

CakePHP

Tools & Utilities

Git

Postman

Docker

LocalStack

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Python Back End

Programming Language

Python

IDE

PyCharm

Spyder

PyDev

Libraries

TensorFlow

Matplotlib

Pandas

Numpy

SciPy

Scrapy

PyBrain

PyTorch

Frameworks

Django

Pyramid

TurboGears

Web2Py

Tools & Utilities

Git

Postman

Docker

Technologies

RESTFull

WebSockets

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Node.js Back End

Framework

Express,js

Next.js

Meteor.js

Koa.js

Hapi.js

Technologies

RESTFull

WebSockets

Tools & Utilities

Postman

Sonarqube

Git

Docker

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iOS

Native

Swift

Persistence

React Native

Flutter

Kotlin Multiplatform

Ionic

Xamarin

Apache Cordova

PhoneGap

Frameworks

Combine

Alamofire ObjectMapper

Swinject

Persistence

CoreData

SQLite

Realm

Networking

URLSession

Codable Architecture

Alamofire

Technologies

WebSockets

UI

SwiftUI

UIKit

Package Manager

Swift Package Manager

Cocoapods

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Android

Native

Kotlin

Java

Cross-Platform & Hybrid

React Native

Flutter

Kotlin Multiplatform

Ionic

Xamarin

Apache Cordova

PhoneGap

Persistence

Room

SQLDelight

SDK

Android SDK

KMM

Networking

Retrofit

Ktor

UI

View’s

Jetpack Compose

Technologies

WebSockets

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Third-Party Services

Services

Facebook Login

Apple Sign-In

Google Sign-In

Google Geolocation API

Stripe

Braintree

Docusign

Eversign

Identify 3D

EHR

GAHIN

HealtheConnections

CliniSync

ClinicAid

USPS

Fedex

Media Streaming Servers

Vonage

Twilio

Amazon Chime

Azure Communication Services

Agora

Wowza Media Systems

Microsoft Stream

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Approaches we Apply

Clean Arhitecture

Microservices

SOLID design principles

Event-driven architecture

MVI

Maven multi module concepts

Screaming Architecture

Cloud Agnostic

MVVM

MVP

Security first approach

Cloud based solution

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Server Infrastructure

AWS

EC2

S3

S3 Glacier

RDS

DynamoDB

SMS

SQS

SES

CloudTrail

CloudWatch

GuardDuty

ElastiCache

Elasticsearch

EKS as Kubernetes engine

NLB as a load balancer

Jenkins as CI / CD tool

Grafana as a monitoring system

ECR as Docker repo

Mace

WAF

Terraform

Ansible as a management tool

Nginx as ingress for Kubernetes

Prometheus as a monitoring system

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Server Infrastructure

AWS

EC2

S3

S3 Glacier

RDS

DynamoDB

SMS

SQS

SES

CloudTrail

CloudWatch

GuardDuty

ElastiCache

Elasticsearch

EKS as Kubernetes engine

NLB as a load balancer

Jenkins as CI / CD tool

Grafana as a monitoring system

ECR as Docker repo

Mace

WAF

Terraform

Ansible as a management tool

Nginx as ingress for Kubernetes

Prometheus as a monitoring system

Front End

Languages & Technologies

JavaScript

HTML5

CSS3

SASS

LESS

TypeScript

Main Libraries

RxJS

NgRx

Angular Universal

Redux

Frameworks

Angular

React

Preact

Vue.js

Ember.js

UI

Angular Material

Bootstrap

Material UI

Package Manager

Gulp.js

Java Back End

Programming Language

Java

IDE

IntelliJ IDEA / Eclipse or other

Technologies

RESTFull

WebSockets (STOMP+AMQ)

Frameworks

Spring JPA

LocalStack

Spring Boot

Spring Security

Spring MVC

Spring Data

Hibernate

Tools & Utilities

Maven

Git

Postman

Docker

Sonarqube

PHP Back End

Programming Language

PHP

IDE

PHPStorm

Libraries

RESTFull

WebSockets

Libraries

Laravel Passport

Laravel Permission

L5 Swagger

PHPUnit

Frameworks

Laravel

Symfony

Phalcon

Codeigniter

Zend

CakePHP

Tools & Utilities

Git

Postman

Docker

LocalStack

Python Back End

Programming Language

Python

IDE

PyCharm

Spyder

PyDev

Libraries

TensorFlow

Matplotlib

Pandas

Numpy

SciPy

Scrapy

PyBrain

PyTorch

Frameworks

Django

Pyramid

TurboGears

Web2Py

Tools & Utilities

Git

Postman

Docker

Technologies

RESTFull

WebSockets

Node.js Back End

Framework

Express,js

Next.js

Meteor.js

Koa.js

Hapi.js

Technologies

RESTFull

WebSockets

Tools & Utilities

Postman

Sonarqube

Git

Docker

iOS

Native

Swift

Cross-Platform & Hybrid

React Native

Flutter

Kotlin Multiplatform

Ionic

Xamarin

Apache Cordova

PhoneGap

Frameworks

Combine

Alamofire ObjectMapper

Swinject

Persistence

CoreData

SQLite

Realm

Networking

URLSession

Codable Architecture

Alamofire

Technologies

WebSockets

UI

SwiftUI

UIKit

Package Manager

Swift Package Manager

Cocoapods

Android

Native

Kotlin

Java

Cross-Platform & Hybrid

React Native

Flutter

Kotlin Multiplatform

Ionic

Xamarin

Apache Cordova

PhoneGap

Persistence

Room

SQLDelight

SDK

Android SDK

KMM

Networking

Retrofit

Ktor

UI

View’s

Jetpack Compose

Technologies

WebSockets

Third-Party Services