Valeria Buzun

Indie iOS & Android Developer · Berlin

Apps built solo,
made to feel right.

An indie developer based in Berlin, shipping iOS & Android apps solo — design, brand, and code all handled in-house. A background in analytics shaped how I see the whole product and process, and years of B2C design taught me how much comes down to user psychology.

Data-minded. Empathy-led.

See the apps Get in touch

Apps

One shipped so far, with more in the works.

Education · iOS & Android

GrammKlar

German grammar, made clear — structured lessons and offline flashcards from A1 to B1.

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Kids · Coming soon

Farbenlernen

German colors, made playful — voice-narrated learning for ages 2–4, then a quiz mode to test it.

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What I actually do.

Data, design, and code — no team between the idea and the App Store.

  1. User research & testing

    Needs analysis, user stories, personas — AI drafts the toolkit fast now. It still can't tell you where a real user actually gets stuck.

    • User research
    • Personas
    • Usability testing

  2. Data & analytics

    A background in B2C analytics — reading what actually moves people to act, from pricing to conversion, before a single screen gets designed.

    • Pricing psychology
    • Conversion
    • User behavior

  3. Brand & logo design

    Building an app's identity from scratch — logo, palette, and supporting materials, designed end to end in Figma.

    • Figma
    • Logo design
    • Brand identity

  4. iOS & Android development

    Cross-platform apps built and shipped solo, from first commit to both the App Store and Google Play.

    • React Native
    • App Store
    • Google Play

  5. AI-assisted workflow

    Planning, design, and code, accelerated by AI at every step — used as a co-pilot, not a replacement for judgment.

    • Claude
    • Claude Code
    • ChatGPT

Contact

For work, questions, or just to say hi.

Email [email protected] LinkedIn /in/valeria-buzun