Workshop
Projects
My own products for real estate, shared memories, the kitchen and working life: iOS and macOS apps plus web platforms. From the first idea to release, with development, design and marketing in one pair of hands.
iOS & macOS app
Immobilien Protokoll
Handover protocols in a few taps
An app for digital apartment handovers: PDF protocols, signatures, meter readings, keys and defect tracking on site. It runs on iPhone and Mac so the walkthrough in the flat and the follow-up at the desk share the same data.
The problem
Paper-based handover protocols make handing over a flat needlessly laborious for landlords. Defects, photos, meter readings and keys have to be documented by hand, then painstakingly pulled together and filed. That takes time and makes it harder to reliably trace the condition of a flat at move-in and move-out.
The solution
With Immobilien Protokoll, the handover is documented fully digitally and in a structured way. Record defects, photos, meter readings, keys and signatures on site, then automatically generate a professional handover protocol as a PDF. You save time, reduce errors and have all the important information about your properties at hand whenever you need it.
iOS app
Immo Assistant
Efficient real estate management
An iOS app for real estate metrics, yield calculations, reserves and faster investment decisions. Built for brokers, property managers and investors who need a number before the viewing is over.
The problem
Complex management tasks consume too much time in a broker's daily routine.
The solution
A central dashboard for managing units, tenants and appointments.
Web platform
Mieter-Auskunft.de
Online tenant self-assessment
A guided web flow that captures tenant data structurally and turns it into a professional self-assessment. No download, no printing — people answer questions and get a finished PDF at the end.
The problem
Tenants often have to fill out complicated PDF forms.
The solution
A simple online flow for creating the self-assessment.
iOS & macOS app
ImmoTilgung
Payments, interest and remaining debt at a glance
A repayment calculator for mortgages and long-term loans. ImmoTilgung shows how monthly payments, interest and extra repayments affect your financing – on iPhone, iPad and Mac.
The problem
A monthly payment tells only part of a mortgage's story. Fixed-rate periods, remaining debt and extra repayments make it difficult to compare offers and understand long-term costs.
The solution
With ImmoTilgung, calculate a loan using a repayment rate, target monthly payment or term. Explore extra repayments, compare loans and follow interest, principal and remaining debt in a detailed repayment schedule.
iOS & macOS app
TimeTogether
A timeline for your love
A private app for couples who want to keep both big milestones and small everyday moments. Photos, videos, shared firsts and couple challenges come together in your personal timeline.
The problem
Shared photos live in your library, special dates in a calendar and memories somewhere in between. In everyday life, it is easy to lose the thread of your shared story.
The solution
With TimeTogether, collect moments with dates, places and descriptions in a timeline. Save shared firsts, plan challenges and get reminders for monthly and yearly anniversaries. Optional Premium Couple Sharing connects your story across both partners' devices.
iOS & macOS app
Work & Pay
Keep track of hours and earnings
A clear overview of shifts, working hours and actual earnings, even across multiple jobs. Work & Pay accounts for changing hourly rates, paid and unpaid breaks, and tips.
The problem
Multiple jobs and changing shifts can make actual earnings hard to track. Different hourly rates, breaks and tips are tedious to add up in notes or spreadsheets.
The solution
With Work & Pay, record each shift from start to finish and assign it to the right job. The app calculates working hours and earnings automatically. Recurring schedules, a calendar and weekly summaries help you keep track of work and income.
Coming soon to the App Store
iOS & macOS app
Dishfolio
Collect recipes, plan meals and enjoy cooking
Dishfolio brings your recipe collection, weekly meal plan and shopping list together. Import recipes from the web or photos and discover new ideas in the community. Coming soon to the App Store for iPhone, iPad and Mac.
The problem
Favourite recipes are scattered across websites, photos and notes. Planning meals and writing a shopping list means gathering ingredients again and again. When it is time to cook, a clear set of instructions is often missing.
The solution
With Dishfolio, collect and organise your recipes in one place. Plan meals in the calendar, add ingredients to your shopping list and scale quantities to the number of servings you need. Cooking mode guides you through each step with multiple timers.
More apps
4 more on the App Store
Besides the main products there are smaller tools on the App Store: calculators, converters and helpers that grew out of concrete everyday problems.
