Analytics dashboard on laptop
Built in Toronto,
Canada

Turn your
raw data
into power

We build automated databases, mobile apps, websites and intelligence systems that help you save time and make decisions faster.

Business intelligence dashboard on tablet
Built in Toronto,
Canada
KPI metrics card
Reiterstein Logo
reitersteinToronto, Canada
Direct 1-on-1 Collaboration
Meet the person behind the code

Meet Reiterstein

Hi, I’m the founder of Reiterstein. For the past 7 years, I’ve built software systems for Fortune 500 companies. Working with those large corporations, I saw firsthand how they save millions of dollars by using smart, simple tools. But at the same time, I noticed so many small and growing businesses getting left behind—simply because nobody was showing them a better, easier way to do things.

Hiring a full-time software engineer is difficult and expensive, and big tech agencies charge huge fees just to hand your project off to junior staff. I started Reiterstein to solve that. When you work with me, you work directly with a senior developer who takes the time to learn your day-to-day operations and builds straightforward tools that solve your actual headaches.

Whether you need a clean mobile app your customers can download, a fast website that brings in real leads, or simple software to replace messy spreadsheets, I treat your project as if it were my own business. I don't just build software, I build systems that save you time and money. Thank you for trusting me.

Android & iOS Apps

Easy-to-use mobile apps for iPhones and Android. Fast, reliable, and designed to give your customers or team a great experience on the go.

  • ✓iPhone & Android Compatible
  • ✓Fast & Simple to Navigate
  • ✓Push Notifications & Alerts
  • ✓Full App Store Setup
⚡ 0.4s

Websites & Web Apps

Modern, ultra-fast websites and online portals that load instantly. Built to turn visitors into real customers and give clients an easy place to log in.

  • ✓Loads in Under a Second
  • ✓Works on Phones & Laptops
  • ✓Private Client & Staff Portals
  • ✓Google Search (SEO) Ready

Custom Software

Simple tools built around the way your company actually works. Ditch messy spreadsheets, cut paperwork, and automate daily tasks.

  • ✓Replaces Messy Spreadsheets
  • ✓Automatic Invoices & Reminders
  • ✓Live Sales & Numbers Dashboards
  • ✓Zero Monthly Subscription Fees
Real systems deployed in production

Our Featured Projects

We build automated databases, live telemetry pipelines, and custom intelligence systems. Real code, real ROI.

Our engineering & data stack

TOOLS WE BUILD WITH

From automated ETL pipelines and executive BI hubs to cross-platform dispatch apps.

Power BI
Python
Power Automate
Dataverse
Microsoft Azure
SQL Server
PostgreSQL
React
Next.js
TypeScript
Flutter
Dart
Firebase
Docker
HOW WE
TRANSFORM
YOUR OPERATIONS
STEP BY STEP

A proven 5-stage roadmap from messy spreadsheets to instant automated reporting.

STEP 01 • The Discovery Audit

YOU TALK. WE LISTEN.

Walk us through your business process, messy spreadsheets, and operational bottlenecks.

100% Free Operational Audit
STEP 02 • Opportunity Blueprint

MAP THE BLUEPRINT

We architect the complete solution with verified financial ROI models, costs, and timeline clarity.

Verified Financial ROI Model
STEP 03 • Rapid Deployment

RAPID BUILD & DEPLOY

Custom databases, automated pipelines, and live Power BI dashboards shipped in weeks.

Production Software in Weeks
STEP 04 • Team Empowerment

YOUR TEAM MASTERS IT

Hands-on staff training until your entire team masters and loves using the system every day.

100% Dedicated Staff Training
STEP 05 • Dedicated SLA

WE NEVER VANISH

Direct ongoing engineer access, zero vendor lock-in, and reliable SLA support as you scale.

100% Ongoing SLA Support
Clear answers, zero fine print

Frequently Asked Questions

Everything you need to know about our 60% savings model, ROI guarantee, and ongoing engineering partnership.

We never charge you more than you save. We operate on a transparent 60% savings model: we charge 60% of the verified monthly money and labor we save your company.

For example, if our system saves your operations $1,000 every month, our fee is $600/month—leaving $400/month directly in your pocket as pure profit. You are cash-flow positive from day one.

* Minimum Guarantee: We strictly do not take on a project unless we can verifiably save your business at least $1,000 per month.

We provide a 100% free discovery consultation where we walk through your day-to-day operations, manual labor hours, spreadsheet friction, and operational bottlenecks together.

Before writing a single line of code, both you and Reiterstein will review the math and mutually agree on the exact monthly dollar savings our system will produce.

* If we cannot mathematically prove at least $1,000/month in verified savings, we will tell you upfront and won't build the project.

Your monthly plan covers full-service continuous engineering: proactive database maintenance, 24/7 telemetry uptime monitoring, feature enhancements, and direct priority access to the engineers who built your platform.

Data Ownership: You retain 100% ownership of all your business data and operational records at all times. We own and maintain the software infrastructure so you never have to worry about server bugs or maintenance overhead.

Have a specific question about your operations?

Book a free discovery call. We’ll audit your bottlenecks and calculate your exact savings.

Start Free Discovery
Let’s engineer your advantage

Start Your Free Discovery Audit

We’ll audit your operational bottlenecks and calculate your guaranteed monthly savings before you spend a single dollar.