Case Study

How Prime Horizon Developed Horizon Finance - An Automated Investment App for Swedish Fintech Market

Client

Industry

Region

Europe (Sweden)

Overview

Investing in mutual funds can be complex for the average person. Swedish company Horizon Finance wanted to change this. Their vision was to make wealth management accessible to everyone in Europe. The result is Horizon Finance, an automated investment app.

The app builds a bridge between regular savings and professional investing. First, Prime Horizon helped build a secure platform. On this platform, users link their existing bank accounts. They set targets, such as saving for a car or a home. Horizon Finance monitors their finances in real-time. It identifies "leftover" money at the end of the month. Then, it automatically invests those funds into profitable sectors without the user lifting a finger.

Technologies Used

React Native

PHP

JavaScript

Swift

Kotlin

PostgreSQL

SQLite

AWS

Jenkins

Tink

Cairo

BankID

Figma

Challenges faced by the Client

Work with a focused engineering team that fits your way of working. Shared priorities, open communication and regular reviews keep everyone moving toward the same goal.

SDK Incompatibility

From initial discovery to ongoing support, Prime Horizon Technologies brings structure and care to software delivery. We translate business needs into maintainable applications designed to evolve.

Geographical Barriers

Build confidence into every release through structured quality assurance, thoughtful code review and continuous improvement. Clear acceptance criteria keep delivery aligned with your requirements.

Unstable APIs

The investment engine, Cairo, was still in development. Their API requirements changed frequently. This instability threatened the project timeline.

Localization

The app needed to support the local market. It required seamless support for both English and Swedish languages.

The Strategic Solution

Work with a focused engineering team that fits your way of working. Shared priorities, open communication and regular reviews keep everyone moving toward the same goal.

Custom React Native Bridging

To fix the SDK issue, Prime Horizon’s mobile engineer wrote a custom code bridge. This allowed the React Native app to communicate perfectly with the native Tink SDK.

Practice Environment Simulation

Since the team could not access real Swedish banks, they architected a sophisticated Practice environment. This simulated Swedish bank accounts and login procedures, allowing the team to Verification transaction flows remotely.

Agile Integration Strategy

The team implemented a flexible backend architecture. This allowed the system to adapt quickly to Cairo’s frequent API changes without breaking core app functionality.

Dynamic Localization Engine

Prime Horizon implemented a file mapping system that enabled the app to switch instantly between English and Swedish text.

Features of Waelth management App Horizon Finance

BankID Authentication

A secure, region-specific login verification system.

Multi-Bank Aggregation

Users can connect multiple bank accounts to view their total financial standing in one dashboard.

Real-Time Insights

The app displays live data on income, expenses, and monthly disposable income.

Goal-Based Investing

Users can select life goals (such as, “Buying a Car”) and the app calculates the necessary investment strategy.

Automated Investment

The system automatically deducts a set amount (e.g., 500 Euros) and invests it into mutual funds based on the user’s risk profile.

Smart Budgeting

Users can set monthly spending limits and receive alerts when approaching their cap.

Team Involvement

Resources	Count
Mobile Developers	1
Backend Developers	1
UI/UX Designer	1
Project Manager	1

Development Timeline

Discovery & Planning

1 Month

UI/UX Design

1 Month

Core Development

5 Months

Collaborative software engineering, shaped around your priorities.

Build Your Next Fintech Innovation with Prime Horizon

Fintech development requires more than just coding. It demands a deep understanding of security and complex third-party integrations. You might need to bridge native SDKs or simulate international banking environments. Prime Horizon has the specialized talent to handle these challenges. Contact us today to augment your team with world-class engineers.

Tech Stack

Full