01Strategy call
Book a free 30-minute strategy call
A direct conversation with Marko. Fit, scope, and next step - no pitch theater. If we're not the right match, we'll say so.
- 30 minutes
- Direct with founder
- Free, no commitment
We build the systemsyour business runs on
Apps people love, automations that save hours and websites that bring in clients - each one planned before it's built and engineered to still work after two years.
Book free strategy callClutch
Who we are
An AI-native studio. Your go-to product partner for end-to-end work - strategy, design, and engineering. Think first, then ship systems you own. AI is how we work - not a product on the invoice.
ServicesApplication
- UI/UX Design
- Product strategy
- Architecture
- Development
- AI engineering
Automation
- Process mapping
- n8n
- CRM
- AI assistants
- Integrations
Website
- UI/UX Design
- SEO & AEO
- Development
- CRO
- Copy
Case studiesProducts we'velaunched
Free
02Plan
Go slow on scope so the build is fast
For bigger work, a Blueprint: what we build, what it costs, when it ships. For smaller website and automation jobs, we can often scope on the call.
- Scope
- Flat price
- Timeline
03Build
Senior team. AI on the critical path.
Senior engineers on the repo, senior review before it ships. Weekly progress. No account-manager relay between you and the build.
- Senior only
- Weekly updates
- Clear ownership
04Launch
Go live - then keep building it
QA, handoff, and docs included. Launch is the start of running the product with you - iterations and growth.
- QA & handoff
- Training
- Long-term partner
Client storiesWhat clients sayafter we ship
Overall, the team has performed betterthan any other projectI've worked on in the IT industry.Clutch review
Radu Antohe
Founder, PublicLink
Stefanie Herbert
Co-founder, Relative Innovations
“Working with Marko has been an incredible experience from start to finish. He went above and beyond to bring our vision for our CRM platform to life not only executing what we asked for, but also offering valuable suggestions that improved the overall design and functionality.”
Dr. Vladimir Cvetkovic
Founder, ProSafeNet
“1000 users in first 3 months, 20% conversion rate, 2 official sponsors inside first 2 months. They have a great team, and they were great!”
Ivica Veljkovic
Founder, PetGo Buddy
“They were responsive, open to collaboration, and consistently focused on finding the best ways to shape the product.”
Tania Espinoza
Founder & CEO, Global 8 Connect
“Communication was outstanding from day one. Despite the time zone difference they resolved doubts in less than 24 hours, and their strategic recommendations helped streamline our MVP launch.”
Stefan Petricevic
Founder, FacelessStar
“Weekly Loom updates helped me to always know where things stood without chasing anyone, also with Notion portal was a game changer - all decisions, files, tasks in one place. These guys have good processes”
Boban Miljkovic
CEO, Tap Group
“I'm not into apps, but we needed solution as we were constantly dealing with missing inventory and couldn't track who sold or bought what. The TapAPP Marko made solved it easily and our inventory management is at least 50% faster now.”
Miloš Djordjevic
Founder & CEO, Stretch Well
“This platform lets us help the thousands of followers who couldn't access our stretching services before - with our own app. The whole process was cool, and the team solved all the technical challenges we worried about, especially around video security.”
Marko Savic
Founder, PetsPilots
“Eterna built our app for pet transport, and they were amazing from day 1, and have been our partner not only in development but also helping us what to build next. Highly recommend!”
Ksenija Jovanovic
Founder, Slikaj sa psima
“I was losing track of bookings and constantly dealing with confusion about who was coming when. The new system handles everything automatically - so no more papers and chaos around me. Big thanks to Eterna team for being there the whole process.”
Start hereWhere are youstuck right now?
I have a product idea
Validate it, scope it, and ship a first version people can use - without burning months on the wrong build.
I want to migrate
Rescue messy no-code or AI-generated prototypes into something stable you own - or tighten what you already have.
I want to speed up
Automate the busywork in sales, ops, or client delivery - so your team stops living in inboxes and spreadsheets.
Who it's forTeams who needbetter systems
Same studio. Different starting points. Pick the path that sounds like you.
Founders & startups
You need a product people can use - without overbuilding or guessing for six months. We help you scope, ship, and own what you launch.
Businesses & SMBsBusinesses & SMBs
You're drowning in manual work across tools, inboxes, and handoffs. We automate the busywork and build the internal tools your team actually needs.
Creators & consultantsCreators & consultants
You've earned trust. We turn that into a product, site, or delivery system that scales without cloning you.
About us
Marko
Founder, Eterna Studio
Artur
Lead engineer
Violeta
Marketing director
You talk to the people who ship. AI-native studio. You own the work.
Marko and a small senior team. No junior bench, no account-manager relay. If we can't resource your project properly, we'll tell you upfront.
0+
apps shipped
0+
automations shipped
0
Clutch & Upwork
0+
websites shipped
How we use AIAI thatholds up live
AI is the default edge. It stays in your product and in how we build only where it holds up in production.
Senior review before it shipsCheck on the answerKnown costFallback when it missesSenior review before it shipsCheck on the answerKnown costFallback when it missesSenior review before it shipsCheck on the answerKnown costFallback when it missesSenior review before it shipsCheck on the answerKnown costFallback when it misses
Cursor on the critical pathClaude on the critical pathWe run our own productsWorkflows in your productCursor on the critical pathClaude on the critical pathWe run our own productsWorkflows in your productCursor on the critical pathClaude on the critical pathWe run our own productsWorkflows in your productCursor on the critical pathClaude on the critical pathWe run our own productsWorkflows in your product
Research and scope draftsQA assistAI-assisted custom codeProduction, not a demoResearch and scope draftsQA assistAI-assisted custom codeProduction, not a demoResearch and scope draftsQA assistAI-assisted custom codeProduction, not a demoResearch and scope draftsQA assistAI-assisted custom codeProduction, not a demo
AI in products we run
We run our own products in production. That is the reliability proof.
AI in your products
Workflows in your product with a check on answers, a known cost, and a fallback when it misses.
AI supporting delivery
Research, scope drafts, and QA assist - so more budget lands in the product.
How we build with AI
AI-assisted custom code is the default. Cursor and Claude on the critical path - senior review before anything ships.