Application Development Services
World-Class Apps That Truly Improve Business Efficiency and Customer Experience
In IT since 1989, ScienceSoft offers end-to-end delivery of secure, reliable and efficient applications for businesses in 30+ industries, including business case creation, architecture and UX/UI design, development, QA, support and evolution.
Application development services help design, implement, integrate, test, and manage B2B, B2C, and corporate apps. ScienceSoft is ready to deliver an MVP in just 1–4 months. No compromises on service quality: it’s our technical proficiency, mature processes and feasible automation that contribute to the project’s speed. So, you can be sure your app gets a user satisfaction score of not less than 90%.
Why Choose ScienceSoft?
- Skilled and dedicated IT consultants, UX and UI designers.
- A full-scale PMO in charge of large and complex projects.
- 550+ developers; 50% of whom are Seniors/Leads.
- Integrated Manual and Automated Testing (IMAAT) approach for QA cost optimization.
- Strategic partnerships with AWS and Microsoft.
- An established collaborative culture to communicate efficiently and deliver sustainable long-term value.
- A quality-first approach based on a mature ISO 9001-certified quality management system.
- ISO 27001-certified security management based on field-tested security knowledge, ever-green policies, effective processes, advanced security technology, and skilled professionals.
Recognized for service excellence
The Financial Times Includes ScienceSoft USA Corporation in the List of the Americas’ Fastest-Growing Companies 2023
For the second year in a row, ScienceSoft USA Corporation ranks among 500 American companies with the highest revenue growth. This achievement is the result of our unfailing commitment to provide high-quality IT services and create best-value solutions that meet and even exceed our clients’ expectations.

Types of Apps We Develop
Here are the types of apps we build and relevant success stories.
Mobile Applications

Design and Development of the Viber Messenger with 1B+ Users
- Available in 193 countries around the globe.
- Over 70M interactions happen per hour.
- Users spend 35+ minutes daily on the platform.
Web Apps for Internal Use

BI Solution Development for Alta Resources
- In 10 months, we implemented fully functioning modules for basic financial analytics and automated customer invoicing.
- Saved up to 90% of the report preparation time for Alta Resources’ analysts.
- Secured streamlined evolution of the new BI solution via its flexible architecture.
Go for internal web app development
Customer-Facing Web Apps

Customer Portal Development for Secure-DeFi
- In less than 4 months, we implemented a convenient and stylish customer portal.
- Streamlined portal adoption and drove a high user retention rate via convenient UX and visually appealing UI.
- Top-notch security: multi-factor user authentication, data encryption, role-based access control, and other cybersecurity mechanisms to protect the portal.
Technologies We Use
The Scope of Our Application Development Services
App planning
We elicit business needs and concerns, draw up functional and technical requirements for a new software solution. We can also help with idea productization and brand design.
Business case creation
We estimate the expected TCO and ROI of the application, explore ways to optimize the app development and maintenance costs.
Project planning
We prepare a detailed development and management roadmap with a release plan, a prioritized feature list, deliverables at each stage, and more.
App architecture design
We describe app architecture, tech stack, compliance strategy, design development and production infrastructures.
App UX/UI design
We conduct UX research and create wireframes and dynamic prototypes. After that, we conduct user testing and prepare full-color graphic interface mockups.
App development
We set up CI/CD pipelines, build the server side, the client side and APIs. We conduct regular code reviews and run all kinds of required tests in parallel with development.
App QA & testing
We plan and conduct functional (including integration and regression), exploratory, performance, usability, compatibility, security tests. We set up test automation, if needed.
App support and evolution
We manage app performance and security, provide L1–L3 support, help optimize TCO. We plan and add new integration and features, including advanced capabilities (e.g., AI, AR/VR, video streaming).
App migration
We recode/re-architect the app (if needed), plan and perform migration to the cloud, test the migrated apps and the infrastructure, provide support and maintenance.
What You Need to Know about Our Agile Development Process
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We generally need 3–5 weeks to establish an efficient CI/CD process (for a mid-sized project with several microservices, an API layer and a front end). |
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Our developers deliver code in 2- or 3-week iterations. Safe minor releases happen continuously via automated CI/CD pipelines. |
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We advocate for the balanced combination of automated and manual testing to achieve maximum software quality while supporting frequent releases and staying cost-effective. |
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We often do trial implementations for a limited number of users to minimize possible downtimes in production and ensure high user satisfaction. Trial stages usually take up to 1–3 months. |
Our App Development Portfolio
App Architecture Patterns We Design
Tiered architecture
Apps have the presentation, application, and data tiers to enable concurrent, quick development, enhanced security, and dependency-free scalability.
Reactive architecture
Message-driven apps with lightning-quick responsiveness to user interactions and stable availability regardless of network and load conditions.
Microservices architecture
Apps are split into units based on business functions to facilitate continuous deployment, ensure high performance, and automate load management.
Cloud-native architecture
Loosely coupled microservices simplify portability, provide the highest availability, and help leverage automated performance scaling and PaaS services.
We Use Advanced Techs in App Development
We can go beyond widely adopted techs, if your solution requires it. Click on the innovative tech you are interested in to learn more about our relevant competencies.
App Development Cooperation - Q&A
How does ScienceSoft ensure progress transparency?
How long does it take to develop an app?
Development time depends on the scope of the application and can take up to 18 months. To accelerate time to market, we recommend our clients to start with a Minimum Viable Product that can be delivered in 2-4 months and enhanced iteratively onwards.
What pricing options do you offer?
- Fixed price – best for small app projects with fixed requirements.
- T&M – best for medium/large-scale app projects with a priority on flexibility.
- T&M with a cap – best for medium/large-scale app projects with a priority on cost risk reduction.
Is it worth going for custom app development?
It is if you have a specific set of requirements and want your app to be tailored to the processes of your organization or the needs of a specific user group, as opposed to mass-produced products. With ScienceSoft’s custom app development services, you get a one-of-a-kind app that guarantees:
- Minimized cost of app integrations.
- Cost-effective and quick app scalability.
- Best cost of ownership.
Benefits of Our App Development Services
Nimble business analysis
With experience in 31 industry, our BA department translates your business needs into spot-on app requirements, shapes the project scope, and suggests cost optimization options.
User-centric UX/UI design
ScienceSoft’s dedicated UX and UI design teams work together to create intuitive interfaces and convenient user journeys that ensure fast user adoption and high engagement.
Performance-driven development
Our developers design easily maintainable architectures, write well-documented & clean code, perform seamless integration and evolve your app to make it even more robust.
All-around testing
Relying on a quality management system backed by ISO 9001, our QA experts perform functional, performance, security, usability, and other types of testing to ensure frictionless app operation.
At ScienceSoft, we are for reasonable IT investments only. First, we check whether our clients already have the required functionality in their enterprise systems. If they do, re-using a part of legacy enterprise systems is often more efficient and less risky than developing and implementing new software modules and integrating them seamlessly. In this case, we reverse engineer legacy systems, refactor the code, add new interfaces if needed.