You talk to the engineerswho build it.

Simnetiq is a London studio building mobile apps, web platforms and AI systems.

Recent work

A selection of apps, platforms, and tools we design, build, and ship.

Browser engineering · In development

Argus Browser

An anti-detect browser on a custom Chromium fork. Hundreds of isolated profiles, each with its own fingerprint, proxy and cookie jar, run and automated from one desktop control plane.

  • C++
  • Chromium
  • Electron
  • React
  • Supabase
Education · Released

Physics.explained

Physics taught visually. Interactive animations powered by accurate solvers, a concept dictionary, and physicist profiles.

  • Next.js
  • WebGL
  • MathJax
  • odex
VPN · Released

Doppler VPN

A censorship-resistant VPN built on VLESS-Reality. Zero logs, geo-distributed nodes, native apps on every platform.

  • Swift
  • Kotlin
  • Go
  • Marzban
Telecom · Released

SMS Code by SIMNETIQ

Virtual numbers for sign-ups. Pick a service and a country, get a real carrier number in about thirty seconds, and keep your own number out of someone else's database.

  • Next.js
  • React
  • Tailwind
  • iOS
Travel-tech · In development

VisaPassage

Multi-passport visa intelligence. Compare every visa route across all the passports and residencies you hold, then generate the exact document package for the one you pick.

  • Next.js
  • React
  • Supabase
  • Tailwind
Legal-tech · Released

Green Flagged

AI contract reviewer for freelancers and small teams. Drop a PDF, get a plain-language verdict with flagged clauses, severity grades, and suggested redlines in under eight minutes.

  • Next.js 16
  • React 19
  • Tailwind v4
  • GSAP

Let’s talk about your project.

An app, a website, or a smarter way to work. Let’s explore what it takes to build and launch it.

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We’ll discuss your needs, the market, pricing, and a practical path from development to launch — including app stores and platforms.

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