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ssaisonfirms

Karl.

@ssaisonfirms
4.3(1)

Prompt and Deploy

France
English
About me
I build and publish iOS & Android apps — fully no-code, fully done for you. Based in Paris, I handle everything solo: audit, design, build, backend setup and App Store / Google Play submission. 10+ live apps deployed. Certified Activateur France Num — recognized by the French government for digital transformation. I also provide professional app beta testing: functional testing, UX review and store compliance. I also create custom AI-generated music tracks via prompt engineering. You bring the vision. I handle the rest.... Read more

Skills

s
ssaisonfirms
Karl.
Offline • 

See my services

Software Testing
I will beta test your ios or android app before launch
4.3(1)
From$20 / projectMore details
iOS App Development
I will build and publish your ios app on the app store
From$100 / projectMore details

Work experience

Mon naturopathe

Cultural Resource • Freelance

Dec 2025 - Jan 2026 • 1 mo

I supported Android app teams during beta and pre-release phases, providing daily, precise and actionable QA feedback. Thanks to these structured reports, teams were able to fix critical issues quickly, improve user experience and successfully deploy their apps on Google Play with confidence. My role focused on clarity, reliability and real impact.

1 Reviews
4.3

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(1)
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Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    4
  • Value of delivery
    4
1-1 out of 1 Reviews
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    harveyroberts98

    FR

    France

    4.3

    It was great working with Karl, he is very professional and proactive.

    $100-$200

    Price

    3 days

    Duration

    gig

    Software Testing

    Helpful?
    Yes
    No