Company overview
EinkaufsCHECK is a German health-focused digital product company that helps consumers build sustainable nutrition habits. The platform combines scientific research, user body metrics, and retail integrations to deliver personalized food recommendations and shopping lists that support long-term lifestyle change.
“Our team recommends Geniusee for businesses that want to get a significant quality of deliverables and long-term partnerships to achieve even more than planned initially. We have been working with Geniusee for two years now. I am excited about their commitment and am happy to refer the company as a trustworthy tech partner.”
Jens Jetzki
EinkaufsCHECK Founder
Business context
The client wanted to move from a concept and early product to a scalable digital platform that could:
- Act as a “personal nutritionist” in the user’s pocket.
- Cover mobile (iOS and Android) and web from one core product.
- Handle large volumes of nutrition, product, and user data in real time.
To do that, they needed a long-term tech partner capable of full-cycle delivery: from UX/UI and architecture to DevOps, Big Data handling, and continuous support.
Product experience and UX
- Redesign the application to make complex nutrition logic feel simple and intuitive.
- Support flexible flows for different goals (maintain, gain, or lose weight) and diets.
Data and performance
- Process and aggregate large volumes of nutrition and retail data (Big Data) in near real time.
- Ensure fast response times for recommendations, searches, and list updates.
Cross-platform delivery
- Build a hybrid mobile app for iOS and Android plus a performant web app from one ecosystem.
- Keep UI and behavior consistent across devices.
Solutions we implemented
Hybrid healthy habit tracker app
- Built a mobile application for iOS and Android that acts as a personal nutrition assistant, generating individualized recommendations based on user body measurements and scientific guidelines (including WHO studies). EinkaufsCHECK_ Healthy Habit Tr…
Personalized nutrition engine
- Implemented logic that converts user profiles (goals, measurements, preferences) into dynamic nutrition plans, recommended products, and portion-level guidance.
- Enabled users to maintain, gain, or lose weight with clear, data-backed daily targets. EinkaufsCHECK_ Healthy Habit Tr…
Smart shopping and recipes
- Added capabilities to generate shopping lists based on nutrition plans, personalize recipes, and filter/sort products by user-specific constraints (diet type, ingredients, etc.). EinkaufsCHECK_ Healthy Habit Tr…
High-performance web application
- Delivered a web app optimized to work with large datasets while keeping the experience responsive and stable under load. EinkaufsCHECK_ Healthy Habit Tr…
Robust data and cloud infrastructure
- Architected the solution on AWS using Node.js, ElasticSearch, AppSync, API Gateway, Cognito, S3, DynamoDB, and IAM for scalable, secure data processing and storage.
Personalized nutrition recommendations based on user body metrics and scientific research
Goal-based tracking: maintain, gain, or lose weight
Diet selection and food tracking with calorie and nutrient visibility
Smart shopping lists tied to recommended products
Cross-platform experience: hybrid mobile app (iOS & Android) + web app
Recipe personalization, filtering, and sorting for user preferences
Long-term partnership model
2+ years of continuous collaboration with a dedicated cross-functional team, enabling ongoing product evolution rather than one-off releases.
Scalable data foundation
Big Data architecture that can ingest and process large datasets of products, recipes, and user interactions while keeping performance stable.
Consistent multi-platform UX
Unified experience across hybrid mobile and web apps, aligned with healthcare/e-commerce user expectations.
