Jostar.id
Portfolio

Real projects for real clients

Most of our work is under NDA, but we're happy to share a few projects we're allowed to show.

Portfolio

Recent work we've delivered

Real projects for real clients. From startups and SMEs to internal enterprise tools.

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Event Management System — Project Operations, Evidence & Digital Work Reports

Event Management System — Project Operations, Evidence & Digital Work Reports

Multi-role event project management system: manage projects, per-project locations & users, GPS-and-camera field attendance, photo/document evidence and receipts with approval flows, plus 5 types of digitally signed work reports (Berita Acara) with PDF export.

FlutterFirebasePDFSignature
Traditional Games — Hadang & Egrang Mobile Games (Flame Engine)

Traditional Games — Hadang & Egrang Mobile Games (Flame Engine)

A cultural-preservation mobile game featuring two Indonesian traditional games: Hadang (Gobak Sodor) as a two-player single-screen strategy game, and Egrang, a side-scrolling stilt race that tests balance — complete with tutorials, stats, achievements, audio & haptics. Built on the Flame game engine.

FlutterFlameProviderOffline
Quis TNI — CBT Practice Tests & Psych Exams for Indonesian Military Selection

Quis TNI — CBT Practice Tests & Psych Exams for Indonesian Military Selection

A computer-based test (CBT) app for Indonesian military (TNI) selection prep: psych & academic question banks, timed code-based quizzes, automatic right/wrong scoring, self-practice mode, score history, and an admin panel for question banks & student score recaps.

FlutterFirebaseBLoC
IMARA MASMU — Integrated Mosque Information System (Imam, Lecture & Tarawih Schedules)

IMARA MASMU — Integrated Mosque Information System (Imam, Lecture & Tarawih Schedules)

A multi-mosque information system: manage Friday imam, religious lecture, and tarawih schedules complete with Hijri dates, cross-mosque preacher conflict detection, and push notifications to the whole congregation — with three roles: Admin, Manager, and Congregation.

FlutterFirebaseFCMgo_router
AC Service Management — Open Job Pool, Commissions & Finance for an AC Service Business

AC Service Management — Open Job Pool, Commissions & Finance for an AC Service Business

An operations app for an AC service business built on an Open Job Pool concept: technicians claim orders themselves (first-come, Gojek-style), automatic daily queues & quotas, real-time leader-helper commissions, an insurance fund, and owner financial reports.

FlutterFirebaseFirestore TransactionCloudinary
Jaga Hukum — Integrated Legal Platform (Legal AI, Consultations & Partner Law Firm)

Jaga Hukum — Integrated Legal Platform (Legal AI, Consultations & Partner Law Firm)

A LegalTech super-app: a Legal AI assistant, consultations & case progress with a partner law firm, a legal clinic forum, news, a payment wallet, and a web admin panel.

FlutterFirebaseGemini AIMidtrans
Promedia — Diabetes Management & Education (Patients, Family & Health Workers)

Promedia — Diabetes Management & Education (Patients, Family & Health Workers)

An integrated diabetes management and education app: patients log daily activities & blood sugar, family members monitor via a shared code, and health workers manage everything from a web panel.

FlutterFirebaseWeb Admin
Bali Kei Hire — Event Rental Team Operations & Payroll

Bali Kei Hire — Event Rental Team Operations & Payroll

An operations app for an event equipment rental business: manage events, teams & drivers, daily reports, duties & fines, cash advances, and payroll with PDF payslips.

FlutterFirebaseBLoCGoogle Maps
Local Ride-Hailing App — 4-Role Food Delivery

Local Ride-Hailing App — 4-Role Food Delivery

A food delivery ride-hailing app with 4 roles (Customer, Driver, Merchant, Admin) in one APK. Flutter + Firebase, real-time tracking, and integrated payments.

FlutterFirebaseCloud Functions
Kolaborasi — Jersey Rental

Kolaborasi — Jersey Rental

An online sports jersey rental platform: real-time catalog, automatic map-based delivery fees, and payments via Xendit.

Flutter WebFirebaseXendit
Best Spa — On-Demand Spa Booking

Best Spa — On-Demand Spa Booking

An on-call spa & massage booking app with tiered membership, a wallet, and therapists who come to your home.

FlutterFirebaseGoogle Maps
BISON — Gym Management

BISON — Gym Management

An all-in-one gym management app: members, packages, trainers, schedules, QR check-in, and financial reports.

FlutterFirebaseQR Check-in

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