Apps & Developer Tools

9 products across macOS, iOS, Chrome, and Jira Cloud. Each one solves a real problem I ran into while building software for clients.

Apple Apps

Native SwiftUI apps for macOS and iOS. No Electron, no cross-platform wrappers.

Chrome Extensions

Browser tools for email, privacy, and investment research.

Jira & Developer Tools

Automation tools for Jira Cloud and Claude Code workflows.

Built by One Developer, Backed by Real Usage

9
Products shipped
4
Platforms
92%
AI accuracy
5
EU markets

Every product started as a tool I needed for a real project. No venture funding, no team of 50 — just focused engineering solving one problem at a time.

Frequently Asked Questions

Are these products free?

Most have a free tier. Claude Battery, Wattora, Email Exporter, UK Shield VPN, and VC Deal Analyzer are all free to use. Some offer premium features through subscriptions or one-time purchases.

Who builds these products?

All products are built by Evgeny Goncharov, founder of TechConcepts. Previously at Yandex (Search) and EY (Advisory), Darden MBA. Every product solves a real problem encountered during consulting work.

Can you build a custom product for my business?

Yes. Native iOS/macOS apps from €3K, Chrome extensions, Jira Cloud apps, and web tools. Fixed pricing, full code ownership. reach out to discuss.

What platforms do you develop for?

macOS and iOS (SwiftUI), Chrome browser extensions, Jira Cloud marketplace apps, and developer CLI tools. All native technologies — no cross-platform wrappers.

Need a custom product built?

I build products for founders and teams. Fixed pricing, full code ownership, 2-8 week delivery.

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