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Teamz Lab Learning
Free interactive coding courses to learn Flutter, TypeScript, NestJS & React. Not a developer? We build mobile apps, web apps & AI solutions for businesses worldwide.
Spaced Repetition
Active Recall
Interleaving
Metacognition
Dual Coding
Free Full-Stack Playbook
Project-based TypeScript, React, and NestJS tutorial with quizzes — no signup
49Lessons
245Quizzes
419Teaching Points
8Languages
Free Flutter Course: Beginner to Professional
Learn Flutter & Dart by building real apps — 51 hands-on lessons with BLoC, Clean Architecture, CRUD, Firebase & more — free, no signup
51Lessons
250Quizzes
449Teaching Points
8Languages
Competitive Programming: Zero to Hero
The world's easiest CP course — learn C++, algorithms, sorting, searching, greedy, recursion & contest strategy from absolute zero. So simple even a 10-year-old can master it — free, no signup
40Lessons
160+Quizzes
300+Teaching Points
8Languages
Flutter Interview Mastery: Zero to Senior
Land your Senior Flutter role — 77 interview-focused lessons covering Dart, BLoC, Riverpod, Animations, Clean Architecture, Testing, System Design, DSA & Behavioral — free, no signup
77Lessons
580+Quizzes
800+Teaching Points
8Languages
Android Interview Mastery: Zero to Senior
Land your Senior Android role — 83 interview-focused lessons covering Kotlin, Coroutines, Compose, Paging 3, Animations, MVVM, Hilt, Room, Testing, System Design & Behavioral — free, no signup
83Lessons
660+Quizzes
900+Teaching Points
8Languages
Career Launchpad: Land Your Dream Dev Job
The missing piece — 16 action-packed lessons on portfolio, LeetCode strategy, mock interviews, resume, LinkedIn, AI skills & salary negotiation — free, no signup
16Lessons
100+Quizzes
140+Teaching Points
8Languages
IELTS Mastery: Basic English to Band 8+
Your complete IELTS journey — 58 comprehensive lessons covering Grammar, Vocabulary, Reading, Writing, Listening, Speaking & Test Strategy — from basic English to Band 8+ — free, no signup
58Lessons
397Quizzes
500Teaching Points
8Languages
নবম শ্রেণির গণিত — শূন্য থেকে পরীক্ষায় ৯৫+
বাংলাদেশ NCTB সিলেবাস — বাস্তব সংখ্যা, বীজগণিত, জ্যামিতি, ত্রিকোণমিতি, পরিমিতি ও পরিসংখ্যান — ইন্টারেক্টিভ ভিজ্যুয়ালাইজেশন, ধাপে ধাপে সমাধান — বিনামূল্যে, সাইনআপ ছাড়া
78Lessons
440Quizzes
650+Teaching Points
8Languages
Microprocessor A–Z: 8086 to Modern x86
Master microprocessors from scratch — 48 interactive lessons covering 8086 architecture, assembly language, interrupts, memory & I/O interfacing, peripheral chips (8255, 8259, 8237, 8251) & modern processor evolution — free, no signup
48Lessons
190+Quizzes
400+Teaching Points
8Languages
Protecting Aging Parents from AI Scams
Stop voice clones, deepfakes, phishing, romance fraud & financial scams — 20 practical lessons every family needs. Real case studies, actionable checklists, family safe words & emergency response — free, no signup
20Lessons
100Quizzes
180+Teaching Points
8Languages
Android Phone Health: Battery, Privacy, Performance & Security
Is your phone healthy, safe & fast? 25 practical lessons — check battery health, detect spyware, fix slow performance, stop battery drain, test WiFi speed, audit permissions, AI diagnostics — free, no signup
25Lessons
100Quizzes
225+Teaching Points
8Languages
Hard to Replace by AI: Stay Valuable in the Age of Automation
Future-proof your career — 18 practical lessons on the 7 irreplaceable skills AI cannot automate, visibility playbook, 30-day career audit, AI toolkit & job loss recovery — free, no signup
18Lessons
72Quizzes
150+Teaching Points
8Languages
Clothing Business Masterclass
Build your fashion empire — 30 hands-on lessons to start, brand, manufacture, market & scale a clothing business — free, no signup
30Lessons
146Quizzes
274Teaching Points
8Languages
NU ইনভেস্টমেন্ট ব্যাংকিং ও লিজ ফাইন্যান্স মাস্টারি
NU Masters Finance & Banking — 312401 পেপারের A+ প্রস্তুতি — বাংলাদেশি উদাহরণ, শর্ট নোট, তুলনামূলক আলোচনা, ভ্যালুয়েশন ও এক্সাম স্ট্র্যাটেজি — বিনামূল্যে, সাইনআপ ছাড়া
46Lessons
205Quizzes
361Teaching Points
8Languages
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Frequently Asked Questions
Which technologies are covered?
We cover Flutter, Dart, TypeScript, React, NestJS, MongoDB, Firebase, Docker, REST APIs, Clean Architecture, BLoC state management, and modern full-stack workflows.
Is this suitable for absolute beginners?
Yes. Our Flutter course starts from "What is Programming?" and our Full-Stack course starts from the basics. No prior experience needed.
How is this different from video tutorials?
You get interactive quizzes, active recall, spaced repetition, code walkthroughs, and spot-the-bug challenges. You learn by doing, not just watching.
I am not a developer. Can Teamz Lab build my app?
Absolutely. Teamz Lab builds mobile apps (iOS & Android), web apps, SaaS platforms, and AI solutions for businesses worldwide. You bring the idea, we build the product.
How much does it cost to build a mobile app?
It depends on features and complexity. Contact us on Upwork for a free consultation and estimate. We work with startups, small businesses, and enterprises.
What technologies does Teamz Lab use to build apps?
We build with Flutter for cross-platform mobile apps, React and NestJS for web apps, Firebase and AWS for backend, and integrate AI with OpenAI, Claude, and custom ML models.
Can you build an MVP for my startup idea?
Yes. We specialize in rapid MVP development. We help you validate your idea fast with a working product, then scale it as your business grows.
Do you build apps for both iOS and Android?
Yes. Using Flutter, we build one codebase that runs beautifully on both iOS and Android, saving you time and budget. We also publish to both App Store and Play Store.
Can I hire Teamz Lab for ongoing development?
Yes. We offer dedicated development teams, ongoing maintenance, feature development, and technical support. Hire us through Upwork or contact us directly.
Is the IELTS preparation course really free?
Yes. Our IELTS Mastery course has 58 lessons, 397 quizzes, and 500 teaching points covering all four skills from basic English to Band 8+. No signup or payment required.
Can I prepare for IELTS Band 7 or 8 with this course?
Yes. The course covers Foundation English, all four IELTS skills with question-type strategies, advanced English for Band 8+, and includes mock tests with self-assessment rubrics aligned to official band descriptors.
Does this IELTS course cover Academic and General Training?
Yes. Writing Task 1 includes lessons for Academic (charts, graphs, maps) and General Training (formal, semi-formal, informal letters). Reading and Listening strategies apply to both modules.
How can I practice Listening and Speaking with a text-based course?
Our lessons teach strategies, question types, and scoring criteria with model answers and self-assessment checklists. Each lesson links to free external tools like British Council and IELTS Official for audio and speaking practice.
Have an App Idea? We Build It For You.
Teamz Lab builds mobile apps, web apps, SaaS platforms, and AI-powered solutions for startups, businesses, and enterprises worldwide. You bring the vision — we bring it to life.
Mobile App Development
Custom iOS & Android apps built with Flutter. One codebase, two platforms. From idea to App Store & Play Store.
Web Apps & SaaS
Modern web applications, admin dashboards, and SaaS platforms that scale with your business.
AI Integration
ChatGPT, Claude AI, smart chatbots, automation & ML models — add AI superpowers to your business.
MVP & Startup Development
Validate your startup idea fast. We build MVPs in weeks, not months. Launch, learn, and grow.
E-Commerce & Marketplace
Online stores, multi-vendor marketplaces, payment integration, inventory management — ready to sell.
Maintenance & Support
Ongoing app maintenance, feature updates, bug fixes, performance optimization, and dedicated tech support.