Market expertise, turned into a product people use every day.
Kalebtec engagement · May to June 2026 · Market intelligence, energy and commodities
Bardi Fuels is a private members' platform for professionals in oil, gas and biofuels. Kalebtec built all of it: the members' website, the team's control panel and an iPhone app on the App Store.
The Bardi Fuels app on the App Store: daily market prices, live bids and offers, the weekly newsletter and trade recaps.
135
professionals using it daily within two months
3
ways in: website, team control panel and iPhone app
~2 mo
from start to launch
Live
on the Apple App Store
Built with
React
React Native
TypeScript
Node.js
Postgres
iOS · App Store
Push notifications
Fastlane
Rowin worked with me on the launch of my company's app during Q2 of 2026. I could not recommend his work enough. He is pro-active, he avoids problems before they arise and profoundly cares for the tasks that are given to him. The work was completed in less time than initially shown and the follow up has been seamless thus far. Great person to work with.
Pierre F. BaranyankaFounder, Bardi Fuels8 July 2026
Delivered faster than quoted. Problems caught before they landed. Follow-up that kept going after handoff.
What Bardi Fuels is
One product, three ways in.
Members get live market prices, bids and offers, a weekly newsletter and trade recaps, behind an invite-only login. It's for people who trade and follow oil, gas, biodiesel and feedstock.
Kalebtec built and connected all three: the members' website, a control panel where the team approves members and publishes updates, and the iPhone app. Then we handed them over so the team runs them without us.
The client and the problem
They had the market expertise. They needed a real product to put it in.
A brochure site wouldn't do. The product needed all four of these to launch.
01
Members only
The prices, offers and newsletters are the product. Access had to be invite-only, with each member approved by the team.
02
A real app on their phone
Their members are working professionals who expect a real app on the App Store.
03
Trustworthy with data
Members' data and market data had to be handled safely from the first day.
04
Theirs to run afterwards
A small team can't depend forever on whoever built the software. They needed clear guides to run and update it themselves.
A weak login exposes the data members pay for. A rejected app means no mobile presence. Careless data handling is a liability from the first sign-in.
What we built
Everything it needed, built and connected end to end.
One senior engineer built and owned every part, so the pieces fit together.
01
The members' website and the team's control panel
Members see prices, offers, the newsletter and trade recaps. The Bardi team approves new members and publishes market updates from the control panel. Live in production.
02
The engine that powers it
It stores the data, checks who's allowed in on every request and keeps prices, offers, newsletters and recaps flowing. Built to be reliable and cheap to run.
03
The iPhone app
Face ID lock, secure sign-in and instant notifications when the market moves. Live on the App Store.
04
A clean handover
Bardi got plain-language guides and one-command tools to publish updates and ship app releases themselves, plus safety nets to recover if anything goes wrong.
Under the hood
The hard parts we handled for them.
You don't need any of this to buy a website. The same people build both. Here's what "production-grade" meant on Bardi:
Members' data, locked down from day one
Everything members pay for was protected from the first release. The app talks only to the real Bardi service.
Invite-only access, without a bloated system
Only people the Bardi team approves get in. We built it without a big, expensive add-on system the client would have to babysit.
Approved on the App Store without a week of delays
Apple's review flagged one issue. We fixed it the same day with a small change on our side, so there was no app rebuild and no restarted multi-day review.
Made it fast
The app was slow to open because it fetched things one at a time. We combined them into a single request.
Built for European rules
Data kept in the EU, a real privacy policy and in-app account deletion. The groundwork for GDPR, laid from the start.
Built to keep running after we left
One-command tools to publish app updates, plus an automatic daily check that keeps everything in sync.
One senior engineer built it end to end, which is why the handover was clean.
The outcome
A complete product, live and in daily use.
From the backend to a published iPhone app in about two months, handed over with what the team needs to run it.
135 people using it daily in under two months
Members use the app and its notifications every day to trade and follow the market.
Website, control panel and app in one launch
Shipped together as one product. Bardi Fuels is live on the App Store.
Approved on the App Store
Past Apple's review with a fix that took a day.
Fast to open
A one-at-a-time startup became a single request.
Built for EU rules
EU data, a real privacy policy and in-app account deletion.
Theirs to run
Handed off with plain-language guides, update tools and recovery safety nets.
Within two months of launch, 135 professionals were on the platform, trading and reacting to price moves through its live feeds and notifications every day.
On scope: we don't quote uptime or error rates. Tracking them was outside this engagement, so there are no numbers to cite.
Why this matters if you're buying a website
The same people build your website.
Bardi Fuels is a full custom platform, a much bigger job than a €500 website. A small site package doesn't include an App Store app.
What it shows a website buyer is who's behind it, and whether they can build. The people who deliver a Kalebtec website took Bardi Fuels from an idea to a secure product live on the App Store.
Ready when you are
Buy a website from people who ship.
Fixed prices from €500, published up front. No call to book.
