Peresia
Peresia Technologies · US / Canada
Managed service marketplace with job posting, quoting, in-app chat and secure payments across web, iOS and Android.
- Web + iOS + Android
- Live in North America
Next.js · Node.js · Flutter
Read case studySoftware Development · Colombo, Sri Lanka
Custom Software & Mobile App Development in Sri Lanka
Web platforms and iOS/Android apps, from startups to government agencies. Built by a team with experience serving local and foreign companies, governments and international organisations.
Mon–Fri 9am–6pm · Sat 10am–2pm. Answered by an engineer.
- Free discovery call
- Fixed-scope written quote
- You own the code
Real client projects
https://peresia.net
Now showing Peresia preview
Trusted by organizations across Sri Lanka and abroad
What you get when you build with us
A structured engineering engagement for Sri Lankan businesses that need software to work on day one and keep working.
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Engineers you can meet in Colombo
Our team sits in Kottawa, Colombo. Meet us in person, call the engineering lead directly, and sit in on sprint reviews. No sub-contracts.
Our team sits in Kottawa, Colombo. Meet us in person, call the engineering lead directly, and sit in on sprint reviews. No sub-contracts.
One backend API, web app and Flutter or React Native apps for iOS and Android, built together by the same engineers so they never drift apart.
ExpoSpice for the Open University of Sri Lanka with plans to reach 300,000+ farming families across 17 districts. Arpico, Peresia and clients in 8 countries run production systems we built.
A written scope and quote before work starts, a demo at the end of every milestone, and a dedicated account manager from kickoff to launch. You always know where the project stands.
Software we have shipped
Production systems used by government agencies, thousands of stock investors, and a North American startup. Not demos.
ExpoSpice
The Open University of Sri Lanka
Sinhala learning modules and a farmer-to-buyer marketplace built under the Lifelong Learning for Farmers initiative.
- Built to reach 300,000+ farming families
- 17 districts
React Native · Node.js
Read case study
Zignol AI
3iTeam product · Built for stock market investors
AI stock co-pilot that turns Stock Market data into structured, faster decisions for investors.
- AI-powered analysis
- In-house product
LLM APIs · Next.js · AWS
Read case studyBuilt on proven technology stacks
From first call to live product
Clear steps, a written scope and a demo at every milestone. No surprises, no scope creep.
Step 01
Discovery call
Call us and talk to an engineer. We learn your business, users and constraints before proposing anything.
Step 02
Requirement gathering meeting
In person or online, we map out users, features, integrations and priorities with your team.
Step 03
Scope and quote
A written scope, milestone plan and fixed price you can sign off. No work starts until you approve it.
Step 04
Build in milestones
Engineering and QA, with a working build demonstrated at the end of each milestone. You see progress, not promises.
Step 05
Launch and support
AWS deployment, App Store and Play Store submission, handover of the code, and ongoing maintenance.
1
Step 01Discovery call
Call us and talk to an engineer. We learn your business, users and constraints before proposing anything.
2
Step 02Requirement gathering meeting
In person or online, we map out users, features, integrations and priorities with your team.
3
Step 03Scope and quote
A written scope, milestone plan and fixed price you can sign off. No work starts until you approve it.
4
Step 04Build in milestones
Engineering and QA, with a working build demonstrated at the end of each milestone. You see progress, not promises.
5
Step 05Launch and support
AWS deployment, App Store and Play Store submission, handover of the code, and ongoing maintenance.
Start with a free call to an engineer
A quick call to understand your project. If it is a fit, we follow with a requirement gathering meeting and a fixed-scope written quote.
- Dedicated account manager
- Full source code and IP transferred to you
- Post-launch support and maintenance options
Mon–Fri 9am–6pm · Sat 10am–2pm
No hidden charges. No lock-in. You own the code.
What clients say about working with us
From founders who trusted us with their software and mobile products.
“Partnering with Yohan Weerasinghe and the 3Iteam has been a game-changer for Peresia. Their team demonstrated outstanding technical skill, creativity, and reliability in building a seamless, scalable platform from the ground up. I'm incredibly impressed with their professionalism and highly recommend 3Iteam to any company seeking top-tier software development expertise.”
Dr. Gus Lazopoulos
CEO, Peresia Technologies Inc.
“I had the pleasure of working with 3iTeam International to develop my language-learning mobile application, and I couldn't be more satisfied with the results. From start to finish, their team demonstrated outstanding work ethics, professionalism, and deep technical expertise. They took the time to truly understand my vision, offered valuable insights throughout the development process, and delivered a high-quality product that exceeded my expectations. I highly recommend 3iTeam International to anyone looking for a reliable and skilled software development provider.”
Prabath Samarawikrama
CEO, Cyber Sense (Pvt) Ltd
Software Development in Sri Lanka: FAQ
What business owners ask us before commissioning custom software or an app.
How much does custom software development cost in Sri Lanka?
Custom software is quoted after a free discovery call because cost depends on scope, integrations and timeline. Web and mobile platforms are scoped in phases so you only pay for what you need, and you receive a fixed written quote before any work starts. Sri Lankan engineering rates are typically 40 to 60 percent lower than equivalent teams in the UK, USA or Australia, without compromising on quality.
How long does it take to build a web or mobile application?
A minimum viable product typically takes 8 to 16 weeks. Larger platforms such as marketplaces, e-learning systems or SaaS products are delivered in milestones over 4 to 9 months. We demonstrate a working build at the end of each milestone so you can see progress and give feedback early.
Can you build both the mobile app and the web platform?
Yes. Most of our products ship as a shared backend API with a web application built in Next.js and native-quality iOS and Android apps built in Flutter or React Native, so your users get a consistent experience on every device.
Which technologies do you use?
We build with modern, well-supported stacks: Next.js and React for web, Flutter and React Native for iOS and Android, Node.js APIs, PostgreSQL and Firebase for data, and Amazon Web Services for cloud hosting. AI features are integrated through leading large language model and machine learning APIs.
Will I own the source code and intellectual property?
Yes. On completion and final payment, all source code, designs, domain names and hosting accounts are transferred to you. We can continue to maintain and host the product under a support agreement if you prefer.
Do you modernise or maintain existing software?
Yes. We take over legacy systems, migrate them to the cloud, add integrations and AI features, and provide ongoing maintenance with service-level agreements.
How do I start?
Call +94 76 097 3068 (Mon–Fri 9am–6pm, Sat 10am–2pm) and speak directly with an engineer, or leave your number on this page and we will call you back within one business day. After a short discovery call we hold a requirement gathering meeting, then send a written scope, timeline and fixed quote.
Get in touch
Contact us
Fastest way
Call us now
A quick call to understand your project. Talk it through with an engineer today and leave with a clear next step.
Call +94 76 097 3068Mon–Fri 9am–6pm · Sat 10am–2pmAnswered by an engineer, not a call centre
Get in touch
Ready to talk? Call us now
Speak directly with an engineer about your project. If you would rather we call you, leave your number and we will ring back within one business day.
Response within one business dayNo spam. Your details stay private.
Response within one business dayNo spam. Your details stay private.