iOS app
App Store listing targets iPhone and iPad users with iOS/iPadOS 15.0 or later.
Finance comparison app
CHECK24 Project Details
Finance and comparison app for managing contracts, bookings, purchases, insurance, energy, credit, travel, shopping, and customer-account workflows.
Mobile App Research and Product AnalysisiOS app6 key features
Project Overview
CHECK24 is a large German comparison app in the Finance category on the App Store.
The App Store listing describes one customer account for managing completed contracts, bookings, purchases, and saved comparisons across major consumer categories.
The product covers insurance, electricity and gas, credit, banking products, credit cards, DSL, mobile plans, rental cars, hotels, holiday apartments, flights, package travel, last-minute travel, shopping, professional services, and tax filing.
Case Study Notes
This case study documents CHECK24 as a finance comparison app project with a focus on the product behavior, user-facing workflows, and technical delivery considerations that matter when building a similar application. The work is listed under the role of Mobile App Research and Product Analysis, so the page is written around practical implementation responsibilities rather than a generic showcase description.
The main product scope centers on Personal customer account for contracts, bookings, purchases, and comparison history. Real-time price and condition comparison across finance, insurance, energy, telecom, travel, and shopping categories. Saved comparisons so users can resume decisions across devices and sessions. Support hotline access and customer-service workflows from inside the app experience. These details show the type of screen design, state management, data handling, integration work, and release planning required for the project. For portfolio visitors comparing mobile and web products, this gives a clear view of what had to work in the real application, not just the visual surface.
The delivery stack includes iOS app, Finance, Comparison flows, Customer account, Travel booking, Shopping. In this project, the technical choices were tied to the product requirements: reliable user journeys, maintainable UI components, predictable data flow, integration with external services where needed, and support for production behavior across the target devices or web surfaces.
The screenshots, links, features, and technology notes on this page are kept together so search engines, clients, and collaborators can understand the project in context. The goal is to make the page useful for people evaluating experience in finance comparison app, app development, full-stack delivery, and product engineering work.
Features
- Personal customer account for contracts, bookings, purchases, and comparison history.
- Real-time price and condition comparison across finance, insurance, energy, telecom, travel, and shopping categories.
- Saved comparisons so users can resume decisions across devices and sessions.
- Support hotline access and customer-service workflows from inside the app experience.
- Voucher and savings-focused journeys across high-intent consumer purchase categories.
- Wallet support for keeping passes and related travel or booking assets in one place.
Technologies Used
The technology stack below summarizes the major implementation areas behind CHECK24. Each item is included because it connects directly to a product need such as cross-platform delivery, backend data exchange, payment or account behavior, app-store readiness, localization, real-time updates, or internal workflow management.
Finance category
The app is categorized by Apple as Finance and focuses on price comparison, contracts, and purchasing workflows.
Customer account
User account flows organize saved comparisons, contracts, bookings, purchases, and customer actions.
Travel and booking
Screenshots and listing copy show hotel, travel, flight, package holiday, and rental-car comparison journeys.
Credit and banking
The app includes credit comparison, bank account, daily money, and credit-card comparison areas.
Shopping marketplace
The listing describes shopping categories including electronics, drugstore products, furniture, and car tires.
Project Screenshots
Engagement Scope
The engagement scope for CHECK24 was shaped by the product category, the target users, and the operational expectations behind the app. A finance comparison app needs more than screens: it needs stable navigation, clear feedback states, resilient data loading, accessible content structure, and enough technical flexibility to evolve as product requirements change.
From an engineering perspective, the important work is connecting the visible product experience to the systems behind it. For CHECK24, that means treating features such as Personal customer account for contracts, bookings, purchases, and comparison history. Real-time price and condition comparison across finance, insurance, energy, telecom, travel, and shopping categories. Saved comparisons so users can resume decisions across devices and sessions. as complete workflows with edge cases, loading states, error handling, and release implications. These are the details that make a portfolio project useful for judging delivery quality.
Public references for this page include App Store listing and Developer website, which help ground the portfolio detail in real product material. The page also links to related projects that share technologies or product patterns, making it easier to compare similar React Native, Expo, Next.js, dashboard, ecommerce, marketplace, and mobile app work.