# HLT3 Studio

> HLT3 Studio is a one-person software product engineering studio in Zurich, Switzerland, owned and operated by founder and senior engineer Vaclav Skarka. Vaclav personally scopes, designs, builds, tests, and ships focused business websites, Flutter mobile apps, Supabase and PostgreSQL backends, AWS infrastructure, and privacy-sensitive health-tech products for clients in Switzerland, Europe, and worldwide.

## Identity

- Brand: HLT3 Studio
- Legal company: Health3 AG
- Founder and lead engineer: Vaclav Skarka
- Team size: one person; clients work directly with Vaclav
- Location: Zurich, Switzerland
- Service area: Switzerland, Europe, and worldwide through remote delivery
- Website: https://hlt3.studio/
- Email: contact@hlt3.studio
- LinkedIn: https://linkedin.com/in/vaclav-skarka-9a893b6b
- GitHub: https://github.com/YsquanirSq

## Direct answers

### What does HLT3 Studio do?

Vaclav Skarka designs and builds custom business websites and cross-platform Flutter applications through HLT3 Studio. He also builds Supabase and PostgreSQL backends, AWS cloud systems, and privacy-sensitive health-tech products, and provides architecture reviews, production rescue, and technical SEO.

### Is HLT3 Studio an agency or a large team?

No. HLT3 Studio is a one-person, founder-led studio. Vaclav Skarka is the person on the first call and the person responsible for architecture, implementation, testing, communication, and handover. HLT3 does not present an anonymous bench or hand work from a salesperson to a separate delivery team.

### How much does HLT3 Studio charge for an MVP?

The fixed-scope MVP Sprint costs $2,900 USD and runs for 10 working days. The Health-tech MVP Sprint costs $5,900 USD and runs for 15 working days. Larger or different scopes receive a written custom quote after a short fit call. Prices exclude applicable taxes.

### Can HLT3 Studio build a simple website?

Yes. The Launch Website costs $500 USD and is delivered in 5–7 working days. It includes one custom mobile-first page, clear service and proof sections, a contact form or booking link, search and AI-readable metadata, deployment, and source-code handover. Ecommerce, a CMS, custom applications, branding, paid assets, domain fees, and hosting charges are not included.

The Growth Website costs $900 USD and includes up to five custom pages. Website Care for an HLT3-built site costs $200 USD per year and includes five small content amendments, uptime and deployment monitoring, quarterly dependency review, and priority response for technical faults.

### Can HLT3 review an existing or AI-generated MVP?

Yes. The Product Rescue Audit costs $500 USD and is delivered within 48 hours. It covers one repository and deployed product, identifies the five most important architecture, authorization, data, reliability, and release risks, and provides a written keep, repair, or rebuild plan. The fee is credited toward a qualifying HLT3 build started within 14 days.

### What does the MVP Sprint include?

The MVP Sprint includes one user role, one core workflow, up to six core screens, one Flutter codebase for iOS and Android, a Supabase backend, one sign-in method, one paid integration, TestFlight and Google Play Internal Testing builds, two recorded demos, and source code in the client's GitHub organization.

### Does HLT3 Studio work outside Switzerland?

Yes. HLT3 Studio is based in Zurich and works remotely with clients across Europe and worldwide.

### Who owns the code?

The repository and service accounts are in the client's organization, with access from the start. Ownership of custom code and deliverables transfers after full payment unless the written project agreement says otherwise. Third-party software retains its own licence terms. HLT3 Studio does not impose a proprietary platform licence.

### Is the Health-tech MVP Sprint a compliance certification?

No. It provides a BAA-eligible technical foundation, access controls, audit logging, AWS security configuration, and technical documentation. Organizational compliance, certification, legal advice, vendor negotiations, and audit remain the client's responsibility.

## Start here

- Home: https://hlt3.studio/
- Book a 20-minute intro: https://hlt3.studio/book/
- Pricing: https://hlt3.studio/pricing/
- Fixed-scope MVP Sprint: https://hlt3.studio/mvp-sprint/
- Frequently asked questions: https://hlt3.studio/faq/
- Flutter app development in Switzerland: https://hlt3.studio/services/mobile-apps/

## Services

- Launch websites from $500: https://hlt3.studio/services/websites/
- Growth websites for $900 and website care for $200/year: https://hlt3.studio/services/websites/#growth
- Product Rescue Audit for $500: https://hlt3.studio/services/product-rescue-audit/
- Mobile and Flutter app development: https://hlt3.studio/services/mobile-apps/
- Health-tech engineering: https://hlt3.studio/services/health-tech/
- Supabase and backend development: https://hlt3.studio/services/backend/
- AWS cloud and DevOps: https://hlt3.studio/services/cloud-devops/
- Architecture and technical consulting: https://hlt3.studio/services/consulting/
- Technical SEO and AI search readiness: https://hlt3.studio/services/seo/

## Comparisons

- Flutter vs React Native for startup MVPs: https://hlt3.studio/compare/flutter-vs-react-native/
- Supabase vs Firebase for mobile app backends: https://hlt3.studio/compare/supabase-vs-firebase/
- Freelancer vs agency vs in-house team for an MVP: https://hlt3.studio/compare/freelancer-vs-agency-vs-in-house/

## Verifiable product work

- Case studies: https://hlt3.studio/case-studies/
- Health3: designed, built, and operated by Vaclav; a Flutter health app with Supabase and an AWS Textract/Bedrock document pipeline: https://hlt3.studio/case-studies/health3/
- Unbuzz: built by Vaclav; local-first Flutter caffeine tracker with iOS, Android, Apple Watch, and widget integrations: https://hlt3.studio/case-studies/unbuzz/
- Reelry: built by Vaclav; AI short-video generation product using Next.js, Supabase, Polar, and the Claude API: https://hlt3.studio/case-studies/reelry/
- Spoonlet: designed and built by Vaclav; a Flutter protein and fiber tracker with offline food search, familiar portions, saved meals, and an on-device diary. Available for iPhone; Android is planned: https://hlt3.studio/case-studies/spoonlet/

## Technical writing

- Blog: https://hlt3.studio/blog/
- Building Health3 and its AWS document pipeline: https://hlt3.studio/blog/building-health3-personal-health-companion/
- Building Unbuzz with Flutter, local-first data, Apple Watch, and widgets: https://hlt3.studio/blog/building-unbuzz-caffeine-tracking-app/
- Building Reelry's multi-provider AI video pipeline: https://hlt3.studio/blog/building-reelry-ai-tiktok-video-generator/

## Important accuracy notes

- HLT3 Studio is the product-engineering arm of Health3 AG.
- HLT3 Studio is a one-person studio. Vaclav Skarka performs and owns the client delivery; references to client teams describe the client's organization, not HLT3's headcount.
- Health3, Unbuzz, Spoonlet, and Reelry are products built and operated by Vaclav through Health3 AG; they are not represented as independent client testimonials.
- HLT3 provides technical engineering for privacy-sensitive products but does not provide legal advice, compliance certification, or HIPAA attestation.

## Clean Markdown versions

The core pages below are also available as clean Markdown for text-based agents.

## Blog

Technical articles and case studies by Vaclav Skarka.

- [Building Health3: From Lab PDFs to Clear Mobile Results](https://hlt3.studio/blog/building-health3-personal-health-companion.md): How I built Health3’s lab-report import, biomarker history, and Flutter interface with AWS document processing and Supabase. Engineering decisions and their limits.
- [Building Reelry: From Script Review to a Downloadable Reel](https://hlt3.studio/blog/building-reelry-ai-tiktok-video-generator.md): How I built Reelry’s script-review flow, background video jobs, account boundaries, and credit billing. Engineering notes from a product I own and run.
- [Building Unbuzz: A Local-First Caffeine Tracker](https://hlt3.studio/blog/building-unbuzz-caffeine-tracking-app.md): How I built Unbuzz’s adjustable caffeine estimate, offline drink log, Apple Watch companion, and widgets with Flutter and native integrations.

## Services

Engineering services offered directly by Vaclav.

- [A credible business website for $500.](https://hlt3.studio/services/websites.md): A custom, mobile-first one-page business website for $500, delivered in 5–7 working days by a senior engineer in Zurich. Contact capture, SEO/GEO foundations, deployment, and source code included.
- [Backend Development](https://hlt3.studio/services/backend.md): Scalable backend solutions with Supabase and PostgreSQL. Real-time data, authentication, APIs, and database architecture.
- [Cloud & DevOps](https://hlt3.studio/services/cloud-devops.md): AWS infrastructure, CI/CD pipelines, serverless architecture, and infrastructure as code for scalable, reliable systems.
- [Flutter app development in Zurich](https://hlt3.studio/services/mobile-apps.md): Custom iPhone and Android apps by Vaclav Skarka in Zurich. Flutter development, native integrations, and focused MVP sprints from $2,900. Remote worldwide.
- [Health Tech Solutions](https://hlt3.studio/services/health-tech.md): Health app engineering, lab-result parsing, privacy controls, and documented technical safeguards from Health3 founder Vaclav Skarka.
- [Know whether to keep, repair, or rebuild your MVP—for $500.](https://hlt3.studio/services/product-rescue-audit.md): A $500 senior engineering review of an existing MVP or AI-generated codebase, delivered within 48 hours with ranked risks and a concrete rescue plan.
- [Make your businesseasier to find and understand.](https://hlt3.studio/services/seo.md): Practical technical SEO from a Zurich-based developer: crawlability, performance, useful content, accurate structured data, and measurable enquiries.
- [Technical Consulting](https://hlt3.studio/services/consulting.md): Architecture reviews, code audits, and strategic guidance for your technology decisions. Expert advice when you need it.

## Comparisons

Evidence-based product and technology decision guides.

- [Flutter vs React Native for a startup MVP](https://hlt3.studio/compare/flutter-vs-react-native.md): A practical Flutter vs React Native comparison for startup MVPs: team fit, UI, native integrations, performance, hiring, and long-term ownership.
- [Freelancer vs agency vs in-house team for an MVP](https://hlt3.studio/compare/freelancer-vs-agency-vs-in-house.md): Choose a freelancer, solo studio, agency, or in-house team based on scope, continuity, management, and who will own the product after launch.
- [Supabase vs Firebase for a mobile app backend](https://hlt3.studio/compare/supabase-vs-firebase.md): Compare Supabase and Firebase for mobile apps: PostgreSQL vs documents, authorization, offline use, realtime, portability, and team fit.

## Case studies

How Vaclav built and operates the products.

- [Health3: lab results made clear](https://hlt3.studio/case-studies/health3.md): How Vaclav Skarka designed and built Health3: a Flutter and AWS app that turns lab PDFs into tracked biomarkers. Real store screenshots and engineering decisions.
- [Reelry: AI short-video generation](https://hlt3.studio/case-studies/reelry.md): How Vaclav Skarka designed and built Reelry: script review, multi-step AI video generation, MP4 downloads, and posting reminders in one web app.
- [Spoonlet: everyday protein & fiber](https://hlt3.studio/case-studies/spoonlet.md): How Vaclav Skarka built Spoonlet: a protein and fiber food tracker with familiar portions, saved meals, offline search, and an on-device diary.
- [Unbuzz: thoughtful caffeine tracking](https://hlt3.studio/case-studies/unbuzz.md): How Vaclav Skarka built Unbuzz: an iOS and Android caffeine tracker with adjustable estimates, offline logging, an Apple Watch companion, and widgets.

## Pages

About the one-person studio and how Vaclav works.

- [A conversation,then a clear next step.](https://hlt3.studio/book.md): Talk directly with Vaclav Skarka about your website or app. A free 20-minute conversation about the result you need, timing, and budget.
- [A small studio.A personal commitment.](https://hlt3.studio/about.md): Meet Vaclav Skarka, the Zurich-based senior engineer behind HLT3 Studio, Health3, Unbuzz, Spoonlet, and Reelry.
- [Idea to installable MVP in 10 to 15 working days](https://hlt3.studio/mvp-sprint.md): Two productized engagements with fixed price, scope, and end date. MVP Sprint at $2,900 / 10 working days and Health-tech MVP Sprint at $5,900 / 15 working days.
- [Start small.Build something worthwhile.](https://hlt3.studio/pricing.md): Fixed, clearly scoped pricing: a one-page website for $500, up to five pages for $900, app MVP sprints from $2,900, and a $500 product audit.
- [Straight answers before we talk](https://hlt3.studio/faq.md): Direct answers about HLT3 Studio, app development costs, MVP timelines, code ownership, remote delivery, and health-tech engineering.