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TsunamiDigital

Digital product studio 45.8132° N — 15.9772° E · Zagreb

The next wave of digitalization.

Custom software, automation, and AI - built by hand, engineered to scale, and made for the teams shaping what comes next. Software, automation & AI - built by hand.

Available for new projects

01 - Services

What we do

01 - Services 01 / 06

Custom Development

Web apps, mobile apps, and custom software - bespoke platforms and internal tools built on modern stacks. Maintainable code, measurable outcomes.

01 - Services 02 / 06

Automation

Workflow and process automation that removes friction across sales, ops, and finance.

01 - Services 03 / 06

AI Integration

LLM and ML pipelines built into your products and operations - engineered for outcomes, not demos.

01 - Services 04 / 06

Data Collection

We collect, clean and shape the data behind your best decisions - and the campaigns that follow.

01 - Services 05 / 06

Web3 Software

Smart contracts, dApps, and on‑chain integrations. Production‑grade Web3 systems built with security and scale in mind.

01 - Services 06 / 06

Strategy & Audit

From architecture reviews and due diligence to research and optimization - practical roadmaps for founders and CTOs.

02 - Work

How we work

02 - Work 01 / 04

Research

We pin down the problem, constraints, and success metrics - one week, fixed scope, written brief.

02 - Work 02 / 04

Design

Every important decision happens before code - how it looks, how it works, how it all fits together.

02 - Work 03 / 04

Build

We turn the plan into working software - tested, documented, and ready to use on day one.

02 - Work 04 / 04

Operate

Steady oversight, regular updates, and continuous improvements - your software stays sharp and reliable.

03 - Projects

Selected work

03 - Projects 01 / 05 Web · Mobile · SEO

Radne Nedjelje

Croatia's go‑to finder for stores open on Sundays, with web and mobile apps serving 300,000+ monthly users. Fully automated data pipeline and top organic search rankings nationwide.

radne-nedjelje.com

03 - Projects 02 / 05 Web · Engineering

Toplinko

Heat loss and gain calculator for HVAC engineers, built to EU and Croatian standards. Smart calculations and a 2D visualisation that work hand‑in‑hand with AutoCAD.

toplinko.hr

03 - Projects 03 / 05 Web · Marketplace · Automation

Tržište Usluga

Nationwide services marketplace connecting customers with 2,400+ verified companies across 150+ services. Describe a need and get competing quotes, automatically matched to the right providers - free and with no registration.

trziste-usluga.com

03 - Projects 04 / 05 Web3 · Data · Automation

Onchain View

Blockchain analytics dashboard that tracks 5M+ daily transactions across three chains and visualises their flow in real time through a custom 2D visualisation, powered by an on‑chain data pipeline.

onchain-view.com

03 - Projects 05 / 05 Web · Data · Automation

Usporedi Cijene

Croatia's largest grocery price comparison platform, aggregating prices from 20+ retail chains so consumers can find the best deals on everyday products.

usporedi-cijene.com
04 - FAQ

Common questions

15 Q
  1. 01 What does Tsunami Digital build?

    We build software for the next wave of digitalization - web apps, mobile apps, internal tools, automations, AI integrations, data pipelines, and Web3 platforms. Whatever takes manual work off your plate, speeds up a process, or replaces a costly off-the-shelf tool, we can design and ship a custom solution for it.

  2. 02 Who do you work with?

    All kinds of businesses - from solo founders and small companies to established enterprises, public institutions, and agencies looking for a technical partner. We work locally in Zagreb and across Croatia, throughout the EU, and worldwide. If you have a real business problem that software could solve, we'd like to hear about it.

  3. 03 Are you open to partnerships with agencies or other studios?

    Yes - we regularly work as the engineering partner behind marketing agencies, design studios, and consultancies that don't have in-house developers. White-label, named, or hybrid arrangements all work for us. If you have a recurring need for reliable engineering or a specific client project that needs technical depth, get in touch.

  4. 04 Do you build mobile apps?

    Yes - native iOS, native Android, and cross-platform apps with React Native or Flutter. We've shipped everything from focused single-purpose tools to full consumer products with hundreds of thousands of monthly users, including the backend, APIs, push notifications, and analytics that keep them running in production.

  5. 05 Do you build web apps and websites?

    Yes - fast marketing sites, SEO-optimized landing pages, web apps, online stores, internal dashboards, admin panels, booking systems, and full SaaS products. We use modern frameworks, custom design, and accessible, performance-first code. No templates, no page builders, no recurring license fees.

  6. 06 Can you automate our business processes?

    Absolutely - process automation is one of our core services and the practical first step in any digitalization initiative. We replace manual work, spreadsheets, and constant tool-switching with custom automations that connect your CRM, accounting, e-mail, e-commerce, and any other systems you already use. Most clients see hours saved per week within the first month, and the savings compound over time.

  7. 07 Can you add AI to our business?

    Yes - anything from a smart chatbot on your website to custom AI tools that summarize documents, draft customer replies, analyze data, route tickets, or trigger actions across your stack. We build with the leading models (Claude, GPT, Gemini, and open-source LLMs) and pick the right one for the task, your budget, and your data-privacy requirements.

  8. 08 How long does a typical project take?

    Most engagements run six to sixteen weeks across our four phases - Research, Design, Build, Operate. Smaller scopes (audits, automations, single integrations) can ship in one to three weeks. We commit to a fixed scope and timeline after the Research phase.

  9. 09 How much does a project cost?

    It depends on scope and complexity. Small automations and integrations start around €1,500-€5,000. Most full projects fall between €5,000 and €60,000. Larger platforms or multi-phase products are quoted individually. We share a written proposal with fixed milestones after the initial discovery call, so there are no surprises.

  10. 10 Can you take over an existing project, or only start from scratch?

    Both. We regularly take over existing codebases for audits, rewrites, performance work, or feature delivery - and we're equally happy starting a greenfield product on day one.

  11. 11 Do you offer ongoing maintenance after launch?

    Yes - our Operate phase covers monitoring, security patches, bug fixes, and continuous improvements. We offer monthly retainers from light-touch support to full product ownership, scaled to what your software actually needs.

  12. 12 Will we own the code and intellectual property?

    Yes. You own the source code, the design files, the data, and all intellectual property created during the engagement - handed over in your own repositories and accounts. We retain no licenses, no kill switches, and no recurring dependencies on us. You can take everything to another vendor at any point, no questions asked.

  13. 13 Do you work with clients without a technical background?

    Yes - most of our clients are business owners, operators, or domain experts without a deep technical background. We translate business goals into technical decisions, document every choice, and explain trade-offs in plain language. Your job is to know your business; ours is to turn that into software that actually works.

  14. 14 What technologies and stacks do you use?

    We're platform-agnostic. There's no single stack we push on every project - each engagement is individual and calls for a different set of technologies, so we pick the right tools for the problem, your team, and the long term. The constant: we only work with modern, actively maintained technologies that will still be supported and easy to hire for years down the line.

  15. 15 How do we start working together?

    Email [email protected] or submit the form below. We respond within one business day, then book a 30-minute discovery call - completely free, no commitments. After that, we decide together whether to move ahead with a Research week.

05 - Contact

Let's build the next wave together.

Get in touch - we respond within one working day.

Completely free. No commitments.

Or send us a message