Fit mit Janika
Personal-training website in Germany.
View websiteMobile products · App growth
Make the next growth decision with evidence.
I help app teams review onboarding, subscription offers, paywalls and acquisition — then define focused experiments.
Direct collaboration · Scope agreed individually
Live products
Built and published
Receipts: Side Hustle Tax
Receipt scanning and expense workflows on iOS.
App Store ↗
Work Hours Tracker — Stundo
Work-hour tracking and timesheet export.
App Store ↗
Nuvo
Dose and weight logging on iOS.
App Store ↗
Calm Mama
A consumer app for mothers, with check-ins and reset exercises.
App Store ↗From scope to launch
- 01
Scope
We define the audience, goal and first useful release.
- 02
Build
Design, development and feedback in one process.
- 03
Launch & improve
Ship the product, measure usage and plan the next step.
Support after launch
- Analytics & Monetization · from €499 / monthDefine the measurement setup and improve subscription decisions.
- App Growth · from €999 / monthASO, paywall review and a focused experiment backlog.
- Full Growth Management · from €2,000 / monthScope and operating cadence agreed before starting. Advertising spend and third-party services are separate.
Net prices, plus VAT where applicable. Scope is agreed individually; no growth outcome is guaranteed.
Next step
Tell me about your project
Share your goals and constraints. I will review the scope before suggesting an approach.
A request is not a purchase. No fixed price is promised by the calculator.