Software for the community.
QuantumB builds mobile and web apps that strengthen local communities — offline-friendly, cash and GCash ready, and designed around the trust that already exists between neighbors, small shops, and the people who serve them.
Built for real neighborhoods, live today.
Not case studies for someone else's brief — these are ours, designed, built, and supported by QuantumB from the first sketch.
TianggeLife
Offline sales, inventory, and utang tracking for sari-sari store owners.
Sari-sari store owners across the Philippines run their business out of a notebook — sales, stock, and utang (customer credit) tracked by hand, at a counter with patchy or no internet.
- Works fully offline — no internet connection or account required to start selling.
- Three-tap checkout for cash, GCash, or utang, with partial payments supported.
- Utang tracking that automatically keeps a running balance per customer.
NongBoy
Get quotes from trusted local tradespeople.
Finding a tradesperson you can trust — for aircon, plumbing, or electrical work — usually means asking around the neighborhood and hoping for the best.
- ID-checked, TESDA-certified tradesperson profiles.
- One job posting reaches multiple available tradespeople at once.
- Most jobs get their first quote within the hour.
Ugyon
Share more with your kapitbahay.
Neighbors have things to give away, swap, or sell cheaply — but no simple, trusted way to do it locally without going through big marketplaces or strangers across the city.
- Three ways to exchange: Donate (free giveaways), Barter (item swaps with photo offers), and Deals (discounted sales).
- Runs in the browser — no app download, and sign-in is just a phone number with SMS verification.
- Browsing neighbors see only an approximate area (~50 meters); the exact pickup spot is shared only with the person whose claim is accepted.
Software built for how your community already works.
Community & Local Marketplaces
Two-sided platforms that connect neighbors to the people and services they trust — built on verification, privacy, and fast turnaround, like NongBoy and Ugyon.
Offline-First Business Tools
Mobile apps that work with no signal and no account wall — POS, inventory, and credit tracking built for the counter, not the cloud, like TianggeLife.
Mobile App Development
Native and cross-platform apps designed around how people in the Philippines actually use their phones — low bandwidth, shared devices, GCash-first.
Custom Software for Local Operations
Booking, dispatch, and credit systems built around how your operation actually runs, not around a generic template.
Four steps from idea to something people actually use.
Live the problem
We start at the counter, not the whiteboard — watching how the work actually happens before we design anything.
Design for real conditions
Offline by default, cash and GCash, shared devices, patchy signal. We design for the Philippines you actually operate in.
Build & ship
A working version in your hands early, refined with real usage — not a year-long build before anyone touches it.
Support in the field
We stay on after launch — fixing what breaks, adding what's missing, and keeping it running as your operation grows.
Building something for your community or local business?
Tell us what you're trying to solve. We'll tell you honestly whether it's a fit.
Tell us what you're building.
Whether it's a mobile app, a local marketplace, or a tool for your own operation — tell us a bit about it. We'll follow up within one business day.