bai+
Web Platform · B2B
A dealer portal that gives partners real-time visibility into their business.
Visit projectCUSTOM SOFTWARE DEVELOPMENT
Custom software development company for business-critical systems
Devello is a custom software development company based in Istanbul. We build tailor-made software for specific business problems: workflow automation, dealer and customer portals, CRM and internal systems. Each project is scoped and priced after a discovery phase, and built by one team covering strategy, design and engineering.
What our software development agency builds
Tailor-made solutions
Software designed around how your business actually works, instead of bending your process to fit an off-the-shelf tool.
Workflow automation
Approvals, orders, stock, service and reporting flows moved out of spreadsheets and into one system.
Complex integrations
API-driven development that connects the new system to the tools you already run.
Secure, maintainable systems
Secure and scalable infrastructure with modern authentication and data handling, built to be maintained for years.
How custom software is priced
Custom software has no fixed plan. We define the scope together in discovery and give you a price and timeline for that scope, paid by milestone. Published plans for mobile, web and AI projects are on the pricing page as a reference.
See all pricingHow a project runs
- 01
Discover
We dig into your goals, users and market to decide what to build and why.
- 02
Design
We turn those goals into flows, prototypes and a visual design aligned with your brand.
- 03
Build
We write clean, tested code in short cycles, with weekly updates and full transparency.
- 04
Launch
We ship to the stores or the web, then track real usage and keep improving.
Frequently asked questions
What is custom software development?
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Custom software development means building a system for one organization's specific needs. Devello builds tailor-made solutions such as workflow automation, portals and internal tools, as opposed to configuring a generic product.
How much does custom software cost?
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It depends on the scope. Devello creates a custom scope and price for each project after discovery. For reference, our published web plans range from Web Lite to Web Pro, with Enterprise projects priced individually.
What kind of systems has Devello built?
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Examples include bai+, a dealer portal that gives partners real-time visibility into their business, and Covira, a dashboard for managing applicants and prospects end to end.
Do you offer ready-made modules to start faster?
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Yes. Devello has thirteen connected B2B products for sales, field service, stock, procurement, projects, HR and support. You can start with one and extend it into a system tailored to your brand.
Which technologies do you use?
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We work with Next.js, Node.js, Firebase and PostgreSQL on the web and backend, and React Native or Flutter for mobile clients. The stack is chosen per project.
How do payments work?
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We work with a milestone-based payment structure. You pay as each milestone is delivered, not everything upfront.
We treat every service like it's our own product.
We don't just deliver services — we build scalable, well-crafted solutions designed to grow with your business. Every project gets the same care and dedication we put into our own products.