Are you seeking a trusted mobile app design agency to develop a user-friendly, high-performance mobile application that seamlessly integrates with your business system?
At TOT, we offer mobile app design and development services, as well as custom mobile app solutions tailored to your specific needs. Whether you need a native iOS/Android application, a cross-platform solution, or a modern PWA, our experienced team ensures your app is optimized for performance, scalability, and long-term growth.
With our end-to-end app development services, TOT helps businesses build powerful digital platforms that enhance user experience and drive business efficiency.
Start your project today and elevate your brand with a mobile app that delivers real business value.
Why Do Businesses Need Mobile App Development?
A mobile application is more than a digital presence; it is one of the most essential touchpoints in the modern customer journey. A professionally designed and developed mobile app can help you:
Reach a wider audience
Mobile apps allow your business to stay connected with customers anytime, anywhere, improving interaction and accessibility.
Integrate advanced technologies
Mobile apps enable seamless connection with payment gateways, CRM, data systems, AI, AR/VR, IoT, and more.
Build a strong and memorable brand identity
A well-designed app enhances brand recognition and creates a modern, professional image.
Optimize marketing and operations
Apps make it easier to automate workflows, manage data, and reduce dependency on external tools.
Increase conversion
Smooth user experience and personalized features help increase engagement and conversions more effectively than websites alone.
Professional Mobile App Development Solutions at TOT
At TOT, we deliver full-stack custom application services and mobile app design development, supporting businesses from startups to large enterprises.
System Integration & Operations
UI/UX Design
Mobile App Development Technology
Fields of Mobile App Design & Development at TOT
TOT provides comprehensive mobile app design development solutions across various industries, delivering applications tailored to each business’s operational needs and user journey. As a mobile app design agency and an affordable app development company, we ensure every project meets high standards of performance, scalability, and user experience.
Automotive
Custom apps for showrooms and dealerships with vehicle browsing, instant pricing, test-drive booking, maintenance scheduling, and customer management.
Healthcare
Apps for clinics and hospitals including appointment booking, medical records, reminders, and secure online consultations.
Retail & E-Commerce
Commerce apps with cart, online payment, order tracking, inventory management, and promo features—ideal for thiet ke app ban hang and scalable app development services.
Education
Mobile learning apps with video lessons, quizzes, progress tracking, notifications, and tuition management—powered by our custom application services.
Construction
Project management apps featuring progress tracking, document storage, portfolio display, and team collaboration tools.
Service Businesses
Tailored apps for industries like real estate, legal services, hospitality, and consulting, offering booking, live chat, CRM features, and service presentation.
Process Implementation
Each step reaching the standard will lead to an expected result.
Step 1: Receipt
Note the problem
Identify needs
Industry knowledge of the partner
Risk analysis and solution proposal
Step 2: Solution
Market trend analysis
Develop comprehensive solutions
Define appropriate detailed features
Step 3: Design
Develop comprehensive UX solutions
Create project wireframes
Design a brand-reflective UI
Step 4: Development
Continuous software development using Agile
Regular and continuous testing
Weekly performance reports
Step 5: Testing
Regular and continuous testing
Production transitions to UAT ensuring passing of all tests
Report on testing results
Step 6: Release
Conduct alpha and beta testing
Implement CI/CD for the release process
Adhere to complex security standards
Step 7: Maintenance
Monthly system status reporting
Regular updates and minor improvements
Fixing arising security vulnerabilities
What Makes TOT Different in Mobile App Design & Development
TOT is not only a mobile app design agency, but also delivers advanced, future-ready solutions that ensure every application is optimized, stable, and scalable. As an affordable app development company, we focus on long-term performance and business impact.
Future-Proof Solutions – Ready for Growth
Apps are built with modern standards, easy to scale, upgrade, and maintain—ensuring long-term value through our custom mobile app development services.
Optimized UI/UX – Enhanced Conversions
Every screen is designed based on real user behavior to increase engagement and conversion, aligned with best practices in mobile app design development.
Top-Tier Security Standards
Mastering Complex Technical Requirements
TOT specializes in multi-platform integration, advanced architecture, high security, and large-scale system development—core strengths of our custom application services.
Commitment to Timeline & Transparent Reporting
All projects follow Agile methodology with 2-week sprints, ensuring clear communication and progress visibility throughout the entire app development services lifecycle.
Long-Term Partnership
TOT offers continuous support, maintenance, feature expansion, and technical consulting—accompanying your business throughout the entire product journey.
Service Price
Standard Package
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Deadline commitment:
4 - 6 weeks -
Website or Application:
5 template -
Standard UI/UX design
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Integrate basic CMS (WordPress/Scapi)
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Design compatible with mobile and desktop
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Support for initial hosting setup
-
Data migration
-
API integration (online payment, third-party tools)
-
Compliance with WCAG 2.2
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Advanced data analytics systems (Power BI, Tableau)
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Multi-cloud deployment (AWS, Azure, Google Cloud)
-
Compliance with OWASP security standards.
-
Maintenance:
3 months
From
Professional Package
-
Deadline commitment:
8 - 12 weeks -
Website or Application:
15 template -
Modern interface design with prototyping (Figma)
-
Integrate basic CMS (WordPress/Scapi)
-
Design compatible with mobile and desktop
-
Support for initial hosting setup
-
Data migration
-
API integration (online payment, third-party tools)
-
Compliance with WCAG 2.2
-
Advanced data analytics systems (Power BI, Tableau)
-
Multi-cloud deployment (AWS, Azure, Google Cloud)
-
Compliance with OWASP security standards.
-
Maintenance:
6 months
From
Enterprise Package
-
Deadline commitment:
>= 16 weeks -
Website or Application:
25 template -
Modern interface design with prototyping (Figma)
-
Integrate basic CMS (WordPress/Scapi)
-
Design compatible with mobile and desktop
-
Support for initial hosting setup
-
Data migration
-
API integration (online payment, third-party tools)
-
Compliance with WCAG 2.2
-
Advanced data analytics systems (Power BI, Tableau)
-
Multi-cloud deployment (AWS, Azure, Google Cloud)
-
Compliance with OWASP security standards.
-
Maintenance:
6 months
Depend on
Our Clients
We collaborates & develops alongside reputable industry-leading partners
Case Studies
TOTO Website
TOT launched a new website for TOTO Vietnam, showcasing its latest products and services. The user-friendly interface and detailed product information make it easy for customers to explore TOTO’s offerings.
✔︎ Website: www.vn.toto.com
✔︎ Industry: Retail
Hoan My Website
The Hoan My website is the official website of Hoan My International Hospital System, one of the leading healthcare systems in Vietnam. On this website, users can learn about the services and medical specialties that Hoan My provides, as well as schedule online appointments and participate in attractive health promotion programs. With the mission of providing high-quality healthcare services, the Hoan My website is a trusted destination for everyone in their healthcare journey.
✔︎ Website: https://hoanmy.com/
✔︎ Industry: Health Care
Fulbright Website
The Fulbright website is the official source of information on Fulbright scholarship programs, one of the world’s leading international scholarship programs. The website provides information on how to apply, selection criteria, and the benefits of participating in the program. This is the premier destination for discovering top-notch opportunities to study, research, and experience cultures worldwide.
✔︎ Website: https://fulbright.edu.vn/
✔︎ Industry: Education
Mazda Website
Manage vehicle information, prices, and manufacturer news in the central operations room. Dealership sites are synchronized regarding UI, vehicle information, prices, and articles managed in the operations room.
✔︎ Website: www.mazdamotos.vn
✔︎ Industry: Automotive
My Mazda App
The application was developed to provide detailed information on Mazda car models, as well as quick support services and test drive scheduling. Results show that the application helps enhance customer interaction, improve their experience, and achieve high user satisfaction.
✔︎ Download App: thaco.link/app/mazda
✔︎ Industry: Automotive
My Peugeot App
The Peugeot APP is a mobile application developed by the car manufacturer Peugeot, helping users easily manage and track information about their cars. The app offers features such as maintenance scheduling, setting repair appointments, vehicle tracking, providing driving directions, and sending alerts about the car’s status. This is a valuable tool to help users maintain and preserve their vehicles efficiently.
✔︎ Download App: thaco.link/app/peugeot/
✔︎ Industry: Automotive
FAQs
Question: What is “custom mobile app development” and who is it for?
Answer: Custom mobile app development means building an application fully tailored to a business’s specific workflow and goals. This service is ideal for companies that need unique features, integrations, or advanced functions not available in pre-made solutions.
Question: What types of apps can a mobile app design agency like TOT build?
Answer: TOT provides app development services for e-commerce, education, healthcare, booking, logistics, enterprise operations, and more. We also develop custom application services for industry-specific needs.
Question: What determines the cost of mobile app design and development?
Answer: The cost depends on app complexity, number of features, UI/UX requirements, and platforms (iOS/Android). As an affordable app development company, TOT offers transparent pricing based on actual scope.
Question: How long does custom mobile app development take?
Answer: Typical timelines range from 4 to 16 weeks, depending on functionality and technical complexity.
Question: Does TOT offer mobile app design development for e-commerce or sales apps?
Answer: Yes. TOT builds e-commerce and sales applications with cart, payment, order tracking, and inventory features—ideal for businesses needing custom mobile app development services.
Question: Can TOT develop an app if I already have the UI/UX design?
Answer: Yes. TOT can handle coding-only projects or refine your existing UI/UX before development.
Question: Is app maintenance included after delivery?
Answer: Yes. We provide maintenance, updates, and technical support based on your needs.
Question: Does TOT ensure app security?
Answer: Absolutely. We follow OWASP standards, perform manual and automated testing, and apply multi-layer data protection—essential for secure custom application services.
Question: Why choose TOT as your mobile app design and development partner?
Answer: TOT combines technical expertise, transparent processes, modern technologies, and industry experience—making us a trusted partner for businesses seeking reliable app development services and long-term support.
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