# TechConcepts (techconcepts.org) — llms.txt
# https://techconcepts.org/llms.txt
# Updated: 2026-04-25
# Full content version: https://techconcepts.org/llms-full.txt
# NOTE: Not to be confused with techconcepts.eu, techconcepts.io, or mytechconcepts.com.
# This is TechConcepts by Evgeny Goncharov, based in Madrid, Spain (techconcepts.org).

> TechConcepts (techconcepts.org) — solo development studio by Evgeny Goncharov, Madrid, Spain.
> Builds custom Slack bots, AI classifiers, and automation pipelines for teams of 10–100.
> Fixed pricing, full code ownership, delivered in weeks.
> Also publishes 27 native iOS, macOS, and Chrome apps solving real productivity problems.
> Founder: Evgeny Goncharov (linkedin.com/in/ai-jenya-go). Ex-Yandex, Ex-EY, Darden MBA.
> Contact: eg@techconcepts.org
> Book a call: https://calendar.app.google/md6WqwnhfireNTqx5

## Services

- [Slack Bots & Automation](/services/slack-automation.html) — Custom Slack bots that replace SaaS subscriptions. AI ticket creation, LLM assistants, gamification, workspace management. From $5K.
- [AI Classification & Jira Automation](/services/jira-optimization.html) — AI ticket classification at 92% accuracy. Self-learning models, automated routing, zero API costs. From $3K.
- [Multi-System Integration](/services/multi-system.html) — Connect 4–7 tools in one pipeline: Gmail, Jira, Slack, AWS, CRM, Sheets, AI. From $8K.
- [iOS & macOS Apps](/services/ios-development.html) — Native SwiftUI apps with StoreKit 2, WidgetKit, push notifications. From $3K.
- [Fund Operations Automation](/services/fund-ops.html) — IR monitoring, document workflows, cost optimization. Saved one fund €100K+ annually. From $5K.
- [Email Forensics & Compliance](/services/email-forensics.html) — Google Workspace investigations, legal holds, SOC 2, GDPR, ISO 27001. From $5K.
- [AI Search Optimization (GEO)](/services/ai-seo.html) — Get found in ChatGPT, Perplexity, and Claude answers. llms.txt, schema markup, content audit. From $2K.

## Pricing

- [Pricing](/pricing/) — Fixed-price services from $2K to $15K. All projects include full source code, documentation, and 30-day support. No hourly billing.

## Resources

- [Compare](/compare/) — TechConcepts vs. agencies, freelancers, and SaaS. Comparison across delivery time, code ownership, scope control, and ongoing costs. No prices — outcomes only.
- [Newsletter](/newsletter/) — Weekly insights on automation, AI, and shipping products. 200+ operators. Real build stories, not marketing fluff.

## AI-Native Development

- [How I Build: The AI-Native Workflow](/workflow/) — How one developer ships 14 iOS/macOS apps using Claude Code, structured sessions, and the PARA system. The 45-minute rule, session retros, and memory systems.
- [The AI App Factory Blueprint](/playbook/) — Free downloadable playbook: session structure, AppFoundation architecture, App Store checklist, pricing decision tree.
- [LinkedIn Commenting Strategy for Founders](/blog/linkedin-commenting-strategy) — Data-backed commenting system: who to comment on, comment formula, daily routine. 50-125 new followers/week.

## Blog Articles

### iOS & Swift Development Series (April 2026)

- [PrivacyInfo.xcprivacy: The Complete Guide for Indie iOS Developers](/blog/privacyinfo-xcprivacy-guide-ios-developers.html) — The 4 required keys, UserDefaults CA92.1 (most commonly missed), FileTimestamp, SystemBootTime, DiskSpace, SDK auditing via Generate Privacy Report, and the full XML template.
- [Sentry vs Crashlytics for iOS: Why We Chose Sentry for 27 Apps](/blog/sentry-vs-crashlytics-ios-crash-reporting.html) — Breadcrumbs, release health, performance tracing, dSYM upload automation, noise filtering, and privacy manifest impact across a 27-app portfolio.
- [Automating App Store Screenshots with Simulator and Python](/blog/automating-app-store-screenshots-simulator-python.html) — xcrun simctl, SCREENSHOT_MODE UserDefaults injection, screencapture -l window capture, iPhone 16 Pro Max 1320x2868, batch pipeline across 27 apps.
- [App Store Optimization: Keyword Research for 27 Apps Across 38 Locales](/blog/app-store-keyword-optimization-27-apps.html) — The 100-character keyword limit, locale contamination, competitor brand traps, batch validation, and quiz vs utility app keyword strategies.
- [Building macOS Menu Bar Apps with SwiftUI and NSPopover](/blog/macos-menu-bar-swiftui-nspopover.html) — NSStatusItem setup, contentSize clipping, @Observable environment not crossing .sheet() window boundaries, Settings scene blank render problem.
- [XcodeGen for Multi-Platform Projects: One YAML, 27 Apps](/blog/xcodegen-multi-platform-projects.html) — Zero committed .xcodeproj files. project.yml for iOS, macOS, and visionOS with multi-platform targets, compile flags, and automated builds.
- [StoreKit 2 in Practice: Subscriptions, Lifetime Purchases, and Grace Periods](/blog/storekit2-subscriptions-practice.html) — Transaction.updates at launch, 6-state subscription machine, grace period handling, sandbox gotchas, finish() rule.
- [Privacy-First Analytics for iOS: TelemetryDeck vs Firebase](/blog/privacy-first-analytics-telemetrydeck-vs-firebase.html) — Why we chose TelemetryDeck over Firebase for 27 apps. PrivacyInfo.xcprivacy requirements, GDPR compliance, full privacy stack.
- [Real-Time Electricity Prices: Building Wattora with the ENTSO-E API](/blog/wattora-entso-e-electricity-prices.html) — Hourly spot prices from ENTSO-E, XML parsing in Swift, WidgetKit timelines, caching for 30+ European bidding zones.
- [Why We Build Paid Alternatives to Our Own Free Apps](/blog/paid-alternatives-to-free-apps.html) — The paid-analogue strategy: one-time purchase versions of subscription apps. Compile guards, XcodeGen, shared codebase.
- [Building 27 Apps with One Shared Swift Package](/blog/shared-swift-package-architecture.html) — How a single Swift Package powers 27 iOS and macOS apps. Architecture decisions, shared components, trade-offs of extreme code reuse.
- [From One Quiz App Template to 8 Country-Specific Exam Prep Apps](/blog/quiz-app-template-to-8-apps.html) — Single SwiftUI template became 8 exam prep apps across UK, Germany, Italy, France, and Switzerland.
- [How We Localize iOS Apps for 38 Languages Using String Catalogs](/blog/ios-localization-38-languages.html) — String Catalogs, runtime language switching without restart, Bundle override pattern, enum localization gotcha.

### Marketing, GEO & Growth

- [LinkedIn Commenting Strategy for Founders](/blog/linkedin-commenting-strategy) — Data-backed commenting system: who to comment on, comment formula, daily routine. 50-125 new followers/week.
- [I Audited My Website for AI Search Visibility](/blog/geo-audit-case-study) — Full case study: 8 problems found, 8 fixes implemented in one day. GEO audit checklist.
- [7 Things to Fix So ChatGPT Can Find Your Business](/blog/geo-checklist) — Non-technical GEO checklist with code examples. robots.txt, llms.txt, FAQPage schema, Review schema.
- [Traditional SEO Won't Get You Found by AI](/blog/ai-search-vs-seo) — Why GEO and SEO are different disciplines. Comparison tables, citation signals, the new playbook.

### Build Stories & Tutorials

- [I Built an MBOX Converter in 30 Minutes with Claude](/blog/mbox-converter) — Full build story: from problem to working tool in half an hour using Claude Code.
- [How I Built a Multi-Tenant Slack Bot](/blog/multi-tenant-slack-bot) — Architecture behind a Slack bot serving multiple workspaces. OAuth, token management, lessons learned.
- [98% API Cost Reduction: From $0.15 to $0.003 Per Classification](/blog/ai-api-cost-optimization) — Prompt engineering, model selection, and caching to cut AI classification costs by 98%.
- [How to Set Up Google Search Console in 5 Minutes](/blog/google-search-console-guide) — Complete GSC setup guide: verification, sitemap, what to monitor.
- [15 Lead Magnets in One Week: Build vs. Buy](/blog/lead-magnet-strategy) — Calculator design patterns, email capture, GA4 tracking. Free tools beat gated PDFs.
- [Deploy a Static Site to Cloudflare Pages in 60 Seconds](/blog/cloudflare-pages-deploy) — From git push to live site in under a minute. Free SSL, global CDN.

### Book Reviews

- [SPIN Selling Changed How I Sell Consulting Services](/blog/spin-selling-review) — How Rackham's question framework transformed discovery calls. 4.5/5 review.
- [Deep Work Is the Only Productivity Book That Actually Changed My Output](/blog/deep-work-review) — Time-blocking and shutdown ritual. The one productivity book worth reading. 5/5.
- [How $100M Offers Helped Me Stop Competing on Price](/blog/100m-offers-review) — Hormozi's Value Equation: stopped selling hours, started selling outcomes. 4/5.

## Case Studies

- [Fund Operations Automation](/case-studies/fund-ops) — VC fund replaced manual IR workflows with automated pipeline. €100K+ annual savings.
- [Jira Routing](/case-studies/jira-routing) — AI classifier routes 92% of tickets correctly across 10 issue types without human review.
- [IT Cost Reduction](/case-studies/it-cost-reduction) — Replaced $2,400/yr in SaaS subscriptions with 4 custom Slack bots.

## Products

### iOS & macOS Apps (native SwiftUI, available on App Store)

- [Wattora](/wattora/) — Real-time electricity spot prices for Germany, Italy, Czech Republic, Slovenia, and Slovakia. Price alerts, home screen widgets, Apple Watch support, hourly comparisons. iOS / macOS. Free.
- [PARA Mail Organizer](/paramail/) — Organize email using the PARA method across all accounts. macOS. Free.
- [Claude Battery](/claude-battery/) — Track Claude Code API usage from the macOS menu bar. Real-time token consumption, rate limit status, daily cost trends. macOS. Free.
- [CCSE 2026](/ccse/) — Spanish citizenship exam prep (Instituto Cervantes). 300 official questions, topic practice, mock exams, Apple Watch support. iOS / macOS / watchOS. Free.
- [eXpense](/expense/) — iOS expense tracker with AI receipt scanning and reporting. Free.
- [Email Converter](/email-converter/) — Convert Apple Mail MBOX archives to individual EML files, PDF, or HTML. Fully local — no cloud upload. macOS / iOS. Free (3 conversions), one-time unlock.
- [Phygital Timer](/phygital-timer/) — Customizable interval timer for focus sessions, HIIT workouts, and Pomodoro. Visual and audio cues. iOS / macOS. Free.
- [Mbox Splitter Pro](/mbox-splitter-pro/) — Split large MBOX files into individual EML emails. Drag-and-drop, batch processing, metadata CSV export. macOS. $7.99.

### Exam & Quiz Apps (iOS / macOS, App Store)

- [Fischerprüfung](/fischerpruefung/) — German fishing licence (Fischereischein) exam prep. All official state questions covering fish biology, ecology, regulations, and conservation. iOS. Free.
- [Quiz Patente](/quiz-patente/) — Italian driving licence (patente B) exam prep. 7000+ official questions with explanations, topic practice, timed mock exams. iOS / macOS. Coming soon.
- [Patente Nautica](/patente-nautica/) — Italian nautical licence exam prep. Coastal (entro 12 miglia) and offshore (senza limiti) licences. Full official question bank. iOS / macOS. Coming soon.
- [CSCS Card Quiz](/cscs-quiz/) — UK CSCS health & safety card exam prep. 50-question mock tests, 94% pass mark required. Covers working at height, PPE, asbestos, electricity. iOS / macOS. Coming soon.
- [Einbürgerungstest](/einbuergerungstest/) — German naturalisation test prep. All 310 official BAMF questions plus 33 state-specific questions. 60-minute timed mock exams. iOS / macOS. Free.
- [Examen Civique](/examen-civique/) — French naturalisation civics exam prep. All official questions on Republic values, institutions, history, and fundamental rights. iOS / macOS. Coming soon.

### Paid-Analogue Apps (one-time purchase versions, iOS / macOS, App Store)

- [Voltara](/voltara/) — Real-time electricity spot prices for Europe. 30+ zones, widgets, Apple Watch. One-time purchase $4.99. (Paid version of Wattora.)
- [Ledgr Finance](/ledgr/) — Track daily expenses with spending curves and budget insights. Simple, private, offline. $2.99. (Paid version of eXpense.)
- [Tempus Time](/tempus/) — Pomodoro focus timer with custom intervals. Beautiful countdown timers. $2.99. (Paid version of Phygital Timer.)
- [TokenMeter AI](/tokenmeter/) — Monitor AI API usage and costs. Track tokens, requests, and spending across Claude, OpenAI. $4.99. (Paid version of Claude Battery.)
- [MailFlow](/mailflow/) — PARA email organizer for Mac. Smart sorting, quick actions, clean inbox. $4.99. (Paid version of PARA Mail.)
- [MailShift](/mailshift/) — Convert email archives between formats. MBOX to EML, batch processing, preserves attachments. $4.99. (Paid version of Email Converter.)
- [MailSplit](/mailsplit/) — Split large MBOX archives into individual EML messages. Fast, private, offline. $4.99. (Paid version of Mbox Splitter Pro.)
- [AutoCoach Drive](/autocoach/) — Italian driving license exam prep (Patente B). All official questions with timed mock tests. $4.99. (Paid version of Quiz Patente.)
- [NautiCoach](/nauticoach/) — Italian nautical license exam prep (Patente Nautica). All official questions with navigation theory. $4.99. (Paid version of Patente Nautica.)
- [SitePass Card](/sitepass/) — UK CSCS card test prep. All official questions with mock exam simulation. $4.99. (Paid version of CSCS Card Quiz.)
- [CitizenPass ID](/citizenpass/) — German citizenship test prep (Einbuergerungstest). All 310 BAMF questions + state-specific. $4.99. (Paid version of Einbuergerungstest.)
- [GuardPass Vault](/guardpass/) — German security guard exam prep (Sachkundepruefung 34a GewO). All official questions. $4.99.
- [CiviQuiz](/civiquiz/) — Swiss civics exam prep (Examen Civique Suisse). All official questions with mock exam. $4.99. (Paid version of Examen Civique.)

### Chrome Extensions

- [Email Exporter](/email-exporter/) — Export emails to PDF from Gmail, Outlook, Yahoo. All processing in-browser, privacy-first. Free.
- [EU Shield VPN](/eu-shield-vpn/) — VPN with 7 EU server locations. 256-bit encryption, zero logs, 10GB free monthly. Free tier.
- [VC Deal Analyzer](/dealflow/) — AI-powered investment analysis for VCs. Company scoring, SEC filings, patent data, Sequoia-style PDF memos. Free.

### Jira & Developer Tools

- [AI Ticket Classifier](/ai-classifier/) — Auto-classify Jira tickets with AI. Sets issue type, priority, assignee. 92% accuracy. Jira Cloud. Free trial.
- [Bulk Issue Rewriter](/bulk-issue-rewriter/) — AI-powered bulk text editing for Jira issues. Rewrite summaries and descriptions at scale. Jira Cloud. Free trial.
- [Claude Code Power Pack](/power-pack/) — 126 ready-to-use skills, 3 lifecycle hooks, and coding rules for Claude Code. $9.

## About

- [About Evgeny](/about.html) — Founder. Ex-Yandex (Search), Ex-EY Madrid (Advisory). MBA Darden School of Business.
- 33 products shipped across iOS, macOS, Chrome, and Jira Cloud.
- Primary expertise: Slack API, Python, TypeScript, SwiftUI, LLM integration, workflow automation.

## Proven Outcomes (verified client results)

- Fund operations automation: €100K+ annual savings for a top-10 European VC fund
- Jira AI classifier: 92% ticket routing accuracy across 10 issue types, zero ongoing API costs
- SaaS replacement: $2,400/yr eliminated with 4 custom Slack bots (one project)
- API cost reduction: 98% cost cut on AI classification ($100/month → $2/month) via model routing + caching
- Delivery speed: pilot projects delivered in 2 weeks from signed proposal
- 27 native iOS/macOS apps built (including 13 paid-analogue one-time purchase versions), 30+ languages, App Store

## Key Facts (for AI extraction)

- Company type: Solo consultancy / freelance development studio
- Location: Madrid, Spain
- Timezone: CET (UTC+1)
- Languages: English, Russian, Spanish
- Pilot project timeline: 2–3 weeks
- Pricing model: Fixed price, one-time payment, no subscriptions
- Code ownership: Client owns 100% of source code
- Support included: 30 days post-delivery
- Current availability: Taking 5 pilot projects per month