Software that moves like a black cat.
Black Cat Technologies LLC designs and engineers mobile apps and SaaS platforms that are fast, resilient, and built to scale. We build for client teams, and we build, publish, and operate our own consumer subscription apps.
What we do
End-to-end product engineering
One team across the full lifecycle — strategy, design, engineering, and growth — so nothing gets lost in handoffs.
Mobile app development
Native and cross-platform iOS and Android apps built with React Native and Swift. Smooth, offline-ready, and store-ready.
SaaS platforms
Multi-tenant web platforms with billing, auth, and dashboards. Architected to scale from your first user to your millionth.
Product & UX design
Research, prototyping, and design systems that turn complex workflows into interfaces people actually enjoy using.
Data & analytics
Event pipelines, reporting, and AI features that turn raw product usage into decisions you can act on.
Security & compliance
SOC 2-aware engineering with secure auth, encrypted data, and audit trails baked in from day one.
Maintenance & scaling
Ongoing support, performance tuning, and infrastructure that keeps your product fast as your team grows.
What we operate
We run our own products, too
Alongside client work, Black Cat Technologies LLC builds, publishes, and operates its own consumer subscription applications in personal finance — apps that help people find, track, and cancel recurring charges they have forgotten about.
Direct-to-consumer billing
Our apps are sold as recurring subscriptions, billed directly to the customer on a monthly, quarterly, or annual term. Pricing, renewal terms, and cancellation are published on each product's own website.
We are the seller
For the products we operate, this company is the seller of record. Customers contract with us, are billed by us, and reach us for support, refunds, and cancellation.
Operated, not just built
We run these products in production — infrastructure, support, billing operations, and compliance — rather than handing them over at launch.
How we work
A prowl, not a scramble
A calm, deliberate process that stays fast because it stays focused.
- 01
Discover
We dig into your users, goals, and constraints, then map the shortest path from idea to a product worth building.
- 02
Design
Rapid prototypes and a clean design system validate the experience before a single production line is written.
- 03
Build
Weekly releases in a shared workspace. You see progress in a live build, not a slide deck.
- 04
Launch & scale
We ship to the stores and the cloud, monitor real usage, and keep iterating long after go-live.
Have a product in mind? Let's build it.
Tell us what you're working on. We'll come back within one business day with a plan for the first sprint.