Foxmill — software development and QA outsourcing

software development · QA outsourcing

We build products and stand behind their quality

Foxmill is a full-cycle studio: we design, build and ship mobile and web applications, and we take testing off other teams' hands. We take our own products all the way into the stores, not just into slide decks.

what we do

Two lines of work

Take a product end to end, or reinforce your own team exactly where it is short of hands.

Software development

From an idea to a listing in the store: design, interface, development, release and support.

  • Android applications (React Native)
  • web applications and PWAs
  • fast, lean websites and landing pages
  • maintenance and updates after release

QA outsourcing

Dedicated engineers inside your team, or a full pre-release pass over the product.

  • functional and regression testing
  • mobile testing on real devices
  • automated checks wired into the build
  • test plans, checklists, defect reporting

work

Products shipped to real users

The clearest way to show how we work is what already works: an app in the store, services and sites people use every day. Our own products and work for clients.

Sova app screens: choosing a state and a breathing session

Sova — an app for anxiety and sleepless nights

Breathing practices with a timer, vibration and phase prompts. Works offline, with no accounts and no ads. Published in RuStore, with a web version and a bilingual site with a content section. Nine techniques, a home-screen widget that starts a breath without opening the app, and a talk with the owl: a branching dialogue written entirely in advance, so it works with no connection.

React Native · Android · PWA · Astro · offline-first

IDU! BEGU! map of children's events across St Petersburg with filters

IDU! BEGU! — where to take a child in St Petersburg

Listings and permanent venues for children on a single map: events, clubs, play centres, museums. The site asks the child's age first, then shows only what suits them and what is close by. Sections by district, by metro station and in the suburbs, a school-holiday calendar and themed picks.

Astro · server-rendered · Leaflet and OpenStreetMap · geolocation · around four thousand cards

poolproof home page with live token-launch counters

poolproof — check DeFi before you put money in

An API for people and programs: is a pool what it claims, what does exiting cost at your size, is a chain still alive, does a stablecoin hold its peg. Plus our own record of every pump.fun token launch and its creator — over two million of them. Paid per call in USDC, no accounts.

API · Solana · pay-per-call (x402) · real-time data collection

KS Avtomatika website home page

KS Avtomatika — site for an engineering company

The site of a security systems contractor in St Petersburg: CCTV, fire and intruder alarms, access control. Services and ready-made solutions, projects, prices, reviews and a blog — around fifty pages built for search and for enquiries.

Astro · SEO · lead capture · blog

What it demonstrates

  • the full cycle, from design to store moderation
  • offline work, on-device storage and privacy
  • a bilingual product and its content
  • business sites that bring in enquiries from search
  • paid APIs: per-call billing and a dataset of our own that no public source has
  • data: collecting, reconciling and serving several thousand records with a map and geosearch
  • our own analytics and quality checks in the build

company

Legal details

We work under contract. Below are the details for verification and paperwork. The registered address is provided on request and stated in the contract.

Brand
Foxmill
Legal name
Individual Entrepreneur Nikolai Aleksandrovich Tkachev
Tax ID (INN)
781313760202
Registration no. (OGRNIP)
320784700203340
Country
Russia
Activity
Computer software development (OKVED 62.01)

contact

Write to us — we answer the same day

Tell us what needs building. If it is not our kind of work we will say so plainly, and point you elsewhere if we can.