Teamz Lab portfolio
Shipped work you can check for yourself: apps and games we built and publish on Google Play and the App Store, web software we built, and case studies with before-and-after screens.
Case studies
Hazira Khata — Android XML to Jetpack Compose Migration
42 screens of a live Android app with 100,000+ users, rebuilt in Jetpack Compose — before and after on every screen, zero feature regressions, real cost.
View case study →The Label Express
Luxury website design concept — editorial sites for fashion, jewellery, watch and beauty. Slow motion, white-glove UX.
View case study →Apps and games on the stores
Arrow Jam 3D Android & iPhone
An arrow puzzle game on a cube: tap an arrow to fire it, clear its path, and unjam the whole stack. 1000 levels in four tiers, a Random Dense mode and a Daily 3D Cube.
See the app →Brimful Android & iPhone
A water sort puzzle with a twist: every jar is a different size. Pour, sort and fill each one to the brim. No timer, unlimited undo, always solvable.
See the app →Bussinly Android
Mock interview practice you speak: answer real interview questions out loud, get a score and three specific things to fix, then run it again. Voice or text, built around the role you want.
See the app →DeviceGPT Android
Battery health, WiFi speed test, mic test, camera and screen tests, phone security audit—in one scan. No root.
See the app →Forty Thieves Solitaire Android & iPhone
The classic two-deck forty thieves solitaire card game that teaches you how to play — and how to win. A built-in coach turns a hard deal into a satisfying win. Free on iPhone & Android.
See the app →Golf Solitaire Android & iPhone
The relaxing golf solitaire card game that teaches you how to play — and how to win. A friendly coach shows the smart move and warns you before a trap. Free on iPhone & Android.
See the app →Hazira Khata Android
Attendance, results, marksheets, ID cards, fees and a parent diary — one free, offline app. Bangla & English. Trusted for 9 years.
See the app →Hyper Toad Android & iPhone
A 3D frog game: flick your tongue at bugs, charge HYPER for double-damage hits on giant toad bosses across 50 levels. Play the first 10 in your browser.
See the app →Kintsugi Pottery: Goldmend Android
A pottery game where the crack is the point: shape clay on the wheel, fire it, and fill whatever breaks with gold. Every crack you mend adds to the sale price.
See the app →No Trace Chat Android & iPhone
Secure chat app with disappearing messages. Encrypted on your phone, no phone number, no signup. Secret chat by code.
See the app →Paycheck & Freelance Calc Android & iPhone
Freelance rate, day rate, paycheck, 1099 tax, invoice due date, mortgage, tax & 2,000+ free calculators. No signup. Opened tools work offline.
See the app →Phosphor Android
Spaced repetition with FSRS: turn a lecture video, a topic or your own notes into flashcards, and review each card on the day you would forget it.
See the app →Resume Coach Android
See what an applicant tracking system actually reads from your resume, get the score with its working shown, then write a cover letter for one job.
See the app →Rocket Landing: Moon Lander Android & iPhone
A lunar lander game with six worlds, a Starship tower catch, and one global mission a day. Free, plays offline.
See the app →Room Quiz Android & iPhone
A test creator for teachers: build an MCQ exam, project one six-character code, and the whole class answers from their own phones — no student app, auto-graded.
See the app →Scorpion Solitaire Android & iPhone
The classic scorpion solitaire card game that actually teaches you how to play — and how to win. A built-in coach turns a tricky board into a satisfying win. Free on iPhone & Android.
See the app →Sleep Switch Android
Nine guided drills for a head that will not stop — the cognitive shuffle, the military method, 4-7-8 breathing. Eyes closed, phone face down.
See the app →Top3Picks Android & iPhone
An AI gift finder that also compares prices: describe the person or the product, set a budget, and get up to three ranked picks with pros, cons and where to buy.
See the app →Voltline Android & iPhone
The buzz wire game reborn in neon. Drag the ring along a live wire without touching — one slip and BZZZT. A steady-hand reflex arcade. Free.
See the app →Web software
AI Product Studio
AI product image generator for online sellers: upload one phone photo and get a marketplace-ready listing photo set, with a Product Lock that tells the AI what must stay the same.
See the product →AlignFlow
Modular dental practice management software for clinics and labs — appointments, patient records, charting, prescriptions, manual billing, and a clear-aligner module with live per-patient margin. Led by a passwordless patient portal. Priced in ৳, bilingual English / বাংলা.
See the product →AlwaysReady Care
CQC compliance evidence software for UK care homes — record evidence in 60 seconds, AI-structure to the 5 key questions, export inspection packs in one click.
See the product →Barir Hisab
বাড়ির হিসাব: বাড়িওয়ালার জন্য বাংলায় বানানো ভাড়ার খাতা। ভাড়াটিয়া, ভাড়া আদায়, বকেয়া, PDF রসিদ আর চুক্তিপত্র এক জায়গায়। Teamz Lab LTD-এর তৈরি।
See the product →Khamar
Farm management software for Bangladesh livestock farms: animal records, feed and health, costs and profit, sales, and a Mudaraba investor module, built Bangla-first for mobile.
See the product →Teamz Lab Tools
6,800+ free online tools — calculators, converters, generators, checkers. No signup, no install, works in any browser. Ad-supported.
See the product →Want something built like this? We take client work through Upwork (milestone escrow, so you pay only when you approve the work), or reach us via teamzlab.com.