Android • AI • Web • Cloud • R&D

We build apps that ship and scale.

Ryza Dev is a registered software company in Bangladesh with specialist talent across mobile, AI, cloud, design and applied R&D. We take products from first line of code to Google Play and the App Store — and keep them running after launch.

Start a ProjectSee Our Apps
  • 40+Orders delivered
  • 5.0★Rating (41 reviews)
  • 10+Live Play Store apps
  • 100%Code you own
5.0★ Rating41 verified client reviews
40+ Orders Shipped100% on-time milestone delivery
10+ Live AppsPublished on Google Play
Google Play AcademyStore Listing Certified (2025)

Build your product. Grow your business.

From your first app to a smoother workflow, we help you take the next step.

Explore all services

Mobile apps

Turn your idea into a product.

Launch an Android or iOS app that helps customers book, buy, or connect with your business.

Android & iOS · New apps & upgrades

Web platforms

Make doing business easier.

Give customers a place to sign up, pay, and manage their accounts—and your team the tools to support them.

Customer portals · Business dashboards

AI & automation

Spend less time on repetitive work.

Answer common customer questions, connect your tools, and automate everyday tasks.

AI assistants · Connected workflows

App publishing

Get your app ready for launch.

Get help with testing, store listings, and review feedback so you can focus on your launch.

Google Play · Apple App Store

Have a goal, but unsure where to start?

Tell us what you want to achieve. We’ll help define the scope and next steps.

Discuss your project
Selected work

A closer look at the products we’ve built, the needs behind them, and what we delivered.

Featured project

Mobile app · Store launch

Zerova / Zystra VPN

A custom VPN app, taken from development to Google Play—with a full rebrand along the way.

What we delivered

Published on Google Play, with existing users able to keep receiving updates after the rebrand.

App development · Publishing · Rebrand

Read case study

Android app · Open source

NetCarve

A network planning tool for engineers working in places where internet access isn’t available.

What we delivered

Subnet calculations that work entirely offline, with no ads, tracking, or internet permission.

Product design · Development · Release

Read case study

Automation · Research

Trading research engine

A system that tests trading strategies, automates execution, and keeps a record of every decision.

What we delivered

Built and validated on a demo account, with position limits, loss caps, and decision logging.

Research · Automation · Risk controls

Read case study

Explore more of our work in web platforms, AI apps, and embedded systems.

View all case studies

Apps we’ve published

Live on Google Play — built and shipped by Ryza Dev.

How we work

A proven delivery process designed to avoid surprises and ship on schedule.

  1. 01

    Discovery & scope

    We define the single job the product must do, what "done" looks like and how success is measured.

  2. 02

    Architecture & stack

    We pick the right tools for the job — native vs cross-platform, back-end and data layers — before writing UI.

  3. 03

    Build in milestones

    Weekly updates and testable builds. You see real progress, not a black box.

  4. 04

    Test & polish

    QA across devices, performance, edge cases and store compliance before release.

  5. 05

    Publish & launch

    We handle signing, store listings, data-safety and review — and get you live.

  6. 06

    Support & grow

    Post-launch maintenance, analytics and feature iterations as your product scales.

Services & pricing

Orderable today on Fiverr or directly through us — fixed packages, clear delivery, source code you own.

AI · Mobile

AI Mobile App Development

GPT/Gemini/Claude chatbots, vision and voice — iOS & Android, up to a full store launch.

From $95Order →
AI · Integration

AI Chatbot & Integration

Add an AI chatbot, RAG on your own data, smart search or voice to your existing app.

From $120Order →
Mobile

Flutter App + Publishing

Cross-platform Flutter app for iOS & Android with backend, auth and notifications.

From $95Order →
Mobile · VPN

AI VPN App (WireGuard)

Custom VPN app with WireGuard core, smart server selection, admin panel and AdMob.

From $120Order →
Most PopularPublishing

Google Play Publishing

Publish or update your app — skipping the new-account 12-tester delay and handling review.

From $25Order on Fiverr →
Publishing · iOS

Apple App Store Publishing

App record, build upload, signing, metadata and review submission.

From $25Order →
Publishing · Accounts

Organization Console + DUNS

Organization Play Console setup — DUNS lookup or registration and business verification.

From $25Order →
Publishing · Fixes

Rejected-App Fix & Resubmit

Diagnosis and fixes for Play rejections, then a proper compliant resubmission.

From $25Order →
Web · Full-Stack

Website + Mobile App

Responsive website plus iOS/Android app — React/Next.js, Node/FastAPI, deployed.

From $100Order →
Web · AI

AI Chatbot for Websites

Embeddable chat assistant trained on your content, with analytics.

From $120Order →
Automation

Automation & Scripts

Python automation, scraping, data pipelines and Sheets/Excel dashboards.

CustomGet Quote →
Custom

Something Bigger?

Multi-stage products, R&D, embedded and cloud work — ask for a scoped plan.

ScopedGet Quote →
Order on FiverrRequest a custom quote

What clients say

Real reviews from the Fiverr profile we run — 5.0 ★ · 41 reviews · 40+ orders.

I absolutely loved working with Zubair! He is extremely knowledgeable, professional, and easy to work with. He understood exactly what I needed and delivered excellent work. Communication was smooth throughout the project, and his expertise really impressed me. I highly recommend Zubair.
sweet_heratIndia · App Store Optimization
Great experience working with Zubair! He provided fast, professional service and completed everything exactly as requested. Communication was excellent throughout the process, and he made the transfer smooth and hassle-free. Highly recommended. I would definitely work with him again!
lioncapVietnam · App Store Optimization
He is such a nice guy — he replies in time and gives you everything as requested. Guys, try his service.
netokingUganda · Programming & Tech
Highly recommend, 10/10 — fast service, would come back again and again and again. Thank you so much.
darhoodTanzania · App Store Optimization
Always happy to work with you.
ufcouponMorocco · App Store Optimization
See all reviews on Fiverr →

Leadership

The people accountable for your project

Ryza Dev is led by two engineers who still write code on the products they sell. Every engagement has a named owner, not a sales handoff.

Md Zubair Alam Roktim Founder, Owner & Lead Engineer

Zubair founded Ryza Dev and leads technical direction across the studio — AI, mobile, web, cloud and applied R&D. He holds Trade License 000491 for Ryza Dev, a BSc in Computer Science & Engineering (European University of Bangladesh), has shipped 40+ client orders at a 5.0-star rating, published 10+ apps on Google Play, and contributes engineering to a national defense research project.

  • Google Play Academy — Store Listing Certificate
  • HackerRank — Software Engineer, Python, SQL, JavaScript, REST API
  • 40+ client orders delivered at 5.0★
  • 10+ apps published on Google Play

Shuvrojit Biswas Co-Founder & Head of Product Engineering

Shuvrojit co-leads Ryza Dev and owns product engineering: production web applications, backend architecture, AI workflows and the interfaces clients actually use. He brings years of shipping experience across healthcare AI, internal automation, SaaS platforms and e-commerce, with a strong bias toward small, maintainable systems and real operational value.

  • Full-stack Product & AI Engineer — healthcare AI, RAG, agents
  • Production SaaS with Next.js, Node.js, Python, FastAPI, PostgreSQL
  • BSc in Computer Science & Engineering (European University of Bangladesh)
  • Design-engineering background — Figma, design systems, product UX

Specialist team

A compact, senior team of 11 specialists covering mobile, web, AI, cloud, design, security and release. Small enough to stay accountable, broad enough to ship a whole product.

Senior Android Engineer

Mobile

Native Kotlin apps, Play Store release engineering and performance work on low-end devices.

  • Kotlin
  • Jetpack Compose
  • Android SDK
  • Play Console

Flutter Engineer

Mobile

Cross-platform Flutter products with native platform channels and offline-first data.

  • Flutter
  • Dart
  • Platform Channels
  • Riverpod

Backend Engineer

Web & Backend

APIs, authentication, payments and data models that stay stable as products grow.

  • Python
  • FastAPI
  • Node.js
  • PostgreSQL

Frontend Engineer

Web & Backend

Fast, accessible interfaces built with React and Next.js and measured against real users.

  • React
  • Next.js
  • TypeScript
  • Tailwind

AI / ML Engineer

AI

Retrieval pipelines, evaluation harnesses and AI features that hold up outside demos.

  • RAG
  • Vector Search
  • PyTorch
  • LLM APIs

DevOps Engineer

Cloud & DevOps

CI/CD, container infrastructure, monitoring and releases that are boring and repeatable.

  • Docker
  • GitHub Actions
  • Linux
  • Nginx

Product Designer

Design & UX

Product UX, design systems and interface decisions shaped around clarity and conversion.

  • Figma
  • Design Systems
  • Prototyping
  • UX Research

QA & Release Engineer

QA & Release

Device-matrix testing, store compliance and release checklists before anything ships.

  • Manual QA
  • Appium
  • Store Compliance
  • Release Ops

Security Engineer

Security

VPN and tunneling products, secure storage, and threat modelling for client apps.

  • WireGuard
  • Cryptography
  • Android Security
  • Threat Modelling

Automation Engineer

Automation

Python automation, scraping pipelines, integrations and internal tooling that removes busywork.

  • Python
  • Scrapy
  • Integrations
  • Scheduling

Technical Writer & Support Lead

Documentation

Client documentation, handover packs and post-launch support that keeps products healthy.

  • Docs
  • Support Ops
  • Handover
  • Knowledge Base

Business & Legal Registration

Ryza Dev is a registered software company in Bangladesh holding Trade License 000491 (Harirampur Union Parishad, Gobindaganj, Gaibandha, TIN: 843133743570). Every client receives complete source code ownership, repository handover, documentation, and post-launch maintenance.

View legal & business information →Verify Trade License 000491 ↗Founder’s engineering portfolio →Co-founder’s portfolio →

About Ryza Dev

A registered software company in Bangladesh, backed by verified credentials and a specialist team that ships production software — not prototypes.

Verified Credentials & Certifications

Google Play Academy

Store Listing Certificate — 2025

HackerRank

Software Engineer — 2025

HackerRank

Python · SQL · JavaScript · REST API

HackerRank

Problem Solving — Basic & Intermediate

Studio Disciplines

Mobile Engineering

Native Android & iOS and Flutter specialists who build for real devices and real users.

AI & Machine Learning

Engineers who integrate, evaluate and ship AI features that hold up in production.

Web & Backend

Full-stack developers owning APIs, databases, auth, payments and deployment.

Cloud & DevOps

Infrastructure, CI/CD and reliability — so releases are boring and repeatable.

Design & UX

Product design, UI, branding and store assets that make software look as good as it works.

QA & Release

Testing, store compliance, publishing and post-launch support across both app stores.

Business & Legal Registration

Ryza Dev is a registered software company in Bangladesh holding Trade License 000491 (Harirampur Union Parishad, Gobindaganj, Gaibandha, TIN: 843133743570). Every client receives complete source code ownership, repository handover, documentation, and post-launch maintenance.

View legal & business information →Verify Trade License 000491 ↗Founder’s engineering portfolio →

Frequently asked questions

Straight answers to what clients ask most.

How long does an app take to build?

A focused app typically takes 2–6 weeks depending on scope. We share a clear milestone plan before we start and send weekly progress updates.

Do I own the source code?

Yes — you own the complete source code and all assets on delivery. We hand over the repository and documentation.

Can you publish on my accounts?

Yes. We publish to Google Play and the Apple App Store on your developer accounts and handle store listings, compliance and review.

What does it cost?

Fixed packages start from $25 for publishing and $95–$120 for app builds. Larger or custom work gets a scoped quote — see Services & pricing.

Do you offer support after launch?

Yes. We offer post-launch support and maintenance so your product keeps working as platforms and dependencies change. Write to support@ryzadev.com and we’ll pick it up.

How do we communicate and get updates?

Over email, WhatsApp or your preferred channel — whichever is fastest for you. You'll get regular updates and can see working builds as we go.

Let’s build something

Tell us about your project. We usually reply within 24 hours with a scope and timeline.

Goes straight to our team. No spam, ever.
Direct Emailhello@ryzadev.comInstant WhatsApp+1 561 865 2213Phone Support+880 1622 559988Technical Supportsupport@ryzadev.com