XVS · Independent app studio

Useful software, made to feel good.

Four focused apps for the everyday moments that deserve better tools: managing money, training, making music and playing together.

XVS
one studio / four worlds

The current lineup

Four apps.
Zero filler.

Each product starts with one clear job and grows around the people who use it—not around accounts, clutter or unnecessary complexity.

Live · v1.0.1

Economat

Personal money, minus the noise.

A private personal finance manager with fast income and expense tracking, clear neon charts, budgets, recurring transactions and multi-currency support. Your financial data stays on your device.

  • 24 EU languages
  • Private by design
  • Budgets
  • Multi-currency
Live · v1.0.6

Vintage Workout Timer

Train by rhythm, not distraction.

Three training tools in a warm retro interface: custom workout programs and circuits, a precise stopwatch and a quick countdown timer. Audio cues and background controls keep you moving hands-free.

  • Workout builder
  • Stopwatch
  • Countdown
  • Works offline
Live · v1.0.6

Easy Guitar Tuner & Metronome

Tune. Count in. Play.

An accurate chromatic guitar tuner with a smooth analog needle and a metronome that can run alongside it. Microphone audio is analysed live on-device—never recorded, stored or uploaded.

  • Chromatic tuner
  • Live cents
  • Metronome
  • Audio stays local
Unity edition live · v1.3.6

Remi Romanesc

Romanian table rules, faithfully digitised.

A strategic tile-rummy game built around authentic Romanian rules, with intelligent single-player AI and online multiplayer. The currently published edition is the original Unity version.

  • Romanian rules
  • Single-player AI
  • Online multiplayer
  • Strategic scoring

Behind XVS

Small studio.
Personal standards.

I'm Dan, the independent developer behind XVS. I design and build useful apps that stay focused, respect their users and feel considered in the small details—not just the launch-day screenshots.

01Clarity first. Every screen should make the next action obvious.
02Privacy is a product feature. When an app can work locally, it should.
03Character without clutter. Useful software can still have a memorable voice.

Support · ideas · collaborations

Have something worth building?

For app support, business enquiries or collaborations, send a note. I usually reply within 48 hours.

Email Dan ↗