Custom apps, shipped in weeks.Not months.
A senior engineering studio for custom apps, mobile applications, and software products. Most builds shipped in 4–8 weeks with fixed scope, fixed price, and full code ownership.
Built for
business-critical use.
Beyond UI delivery, each build follows a clear engineering baseline so your team can scale, maintain, and own the product confidently.
Engineering
Architecture & Data Modeling
Risk Control
Security Baseline (Auth, Access, Backups)
Delivery
CI/CD, QA, Release Process
Reliability
Performance & Monitoring
Infrastructure
Cloud Deployment (AWS / Vercel)
Continuity
Documentation & Ownership Handover
Why clients choose this setup.
Built for speed & control.
Fast Delivery
First working release typically in 3-4 weeks. Full scope commonly lands in 4-8 weeks.
Direct Communication
You coordinate directly with the engineers building the product, with weekly progress updates.
Clear Ownership
Structured scope, transparent timeline, and full codebase handover with documentation.
From first call to production handover.
Precision Scope
A quick 30-minute call to define exact deliverables, edge cases, and architecture. We map it out before writing a single line of code.
Focused Sprints
We build in focused sprints with weekly demos and written updates, so decisions stay fast and aligned.
Shipped & Owned
Final delivery includes deployment support and clear documentation. Your team receives full ownership of the codebase.
Recent Builds.
NDA-safe project snapshots with delivery timelines and business outcomes.
Client names and visual assets are anonymized where confidentiality requires it.
Musterdots Designer
Dot patterns had to be generated more efficiently and consistently than with manual preparation.
Implemented a tool that automates dot creation through a dedicated algorithm and live preview workflow.
From concept to working tool in just a few weeks.
Speech & Oral-Motor Therapy App
Therapy content for speech and oral-motor training needed to feel simple, guided, and accessible on mobile.
Structured the product around step-by-step exercises with a calm interface for daily therapy support.
Built and shipped in under one month.
Senior builds.
Shipped in weeks.
Fixed scope, fixed price, full code ownership — with a working demo in the first week. Projects typically start at €5,000; the tiers below show where focused builds, apps, and ongoing partnerships usually land.
Projects typically start at €5,000.
Fixed scope · Fixed price · Full code ownership
First demo within 7 days, then weekly demos at a fixed price. Don't like the direction? You walk — and only pay for work already shipped.
Automation & Internal Tools
from €5,000
Workflow automations, MCP servers, integrations, and internal tools — plus focused websites that need to ship fast and just work. Typical delivery in 2–4 weeks.
- Workflow Automations
- MCP Servers
- Internal Tools
- Websites
MVPs & Focused Apps
€12–20k
Mobile apps, web apps, and focused product MVPs designed and built to launch cleanly. Most apps shipped in 4–8 weeks.
- Mobile Apps
- Web Applications
- Product MVPs
- Free scope call + architecture plan you keep
- 30 days of post-launch bug fixes included
Custom Software & Partnerships
from €30,000
Custom software with deeper logic, role models, integrations, and multi-phase platforms with ongoing development. Scoped per phase.
- SaaS Products
- Multi-role Dashboards
- Continuous Development
Built by a senior engineer you talk to directly — no account managers, no juniors.
Book your free scope call→Simple, standard, clear.
The payment structure is designed to be fair for both sides. You only pay the second half when the work is done.
50% upfront
Secures your project slot and confirms the scope. No upfront payment, no project start.
50% on delivery
Final payment is due on final delivery, once you've reviewed and accepted the work.
Final pricing is confirmed after the free scope call. Larger builds are split across verified milestones (e.g. 40 / 30 / 30).
Remsi Software
Founder & Engineer
I'm Daniel Remetan.
You work with me directly.
I build custom apps, mobile and web products, and automation systems as a one-person studio. From the first scope call to the final handover, you talk to the person actually writing the code — no account managers, no juniors, no handoffs between departments.
I keep it deliberately small and senior so decisions stay fast and the work stays sharp: tight scope, weekly demos, and a fixed price you approve before I start.
Every project is handed over with clean code and documentation your team genuinely owns — so you can keep building without me if you want to.
Tell us what
you're building.
Share your scope, timeline, and target outcome. We reply within one business day if the project is a fit.
Next available slot
July 2026 (Limited availability)
Response time
Within 24 hours (business days)
First call
30-minute scope session, no cost
Next step
Scope document & fixed pricing