In the high-stakes world of digital security, performance isn’t optional it’s everything.

That’s why the team behind AuthOne, a fast-growing 2FA and password management app, turned to Codeslu when they needed to go beyond authentication. The mission: transform a good app into a full-scale security suite capable of serving tens of thousands of users daily and growing.

From adding a full-featured VPN to building a smart notification system with real-time backend logic, Codeslu development helped take AuthOne to the next level. The result? Over 70,000 daily active users, seamless scalability, and a UI experience that users trust every day.

The Challenge: Upgrading a Growing Security App Without Breaking Trust

AuthOne already had traction but the client knew it needed more than just basic 2FA to compete.

Users wanted more privacy, deeper security, and smarter notifications. The app needed to evolve into something bigger: a secure digital vault that combined authentication, password management, VPN access, and real-time alerts without compromising speed or UX.

At this scale, small mistakes create big risks. So they turned to Codeslu, an app development company known for building high-performance, scalable mobile apps with airtight security and sleek interfaces.

Our Approach: Performance, Security, and Seamless UX

While Codeslu didn’t initiate AuthOne’s development, we became the core team driving its next-level features.

Here’s what we delivered:

VPN Integration: A full in-app VPN experience, allowing users to encrypt their traffic without leaving the app boosting retention and providing an all-in-one security tool.
Smart Notification System: We built a robust backend notification engine using REST APIs and cronjobs, customized to trigger alerts based on user-defined parameters, habits, and security conditions.
SwiftUI Redesign: We optimized the interface for clarity and speed, ensuring even new users could manage complex authentication flows with ease.
Performance Tuning: AuthOne supports 70,000+ daily users, so we fine-tuned cross-device syncing, backend calls, and local encryption to ensure zero slowdown at scale.

These upgrades transformed AuthOne from a feature-limited utility into a trusted daily-use security suite all without sacrificing speed or simplicity.

The Result: Scalable Security with Real User Impact

The numbers speak for themselves: 70,000+ daily active users depend on AuthOne’s feature set and many of the tools they use daily were built by Codeslu.

The VPN module was a hit with privacy-conscious users, while the notification system became a quiet engine for engagement and trust. Codeslu’s ability to build secure, scalable tools with elegant UX helped turn AuthOne into one of the most widely used mobile security platforms in its category.

And perhaps most importantly, we proved that even when we join a project midstream, we bring the firepower to scale it forward.

Technologies Used

Swift
SwiftUI
REST APIs
Cronjobs (backend notification system)

Why Codeslu Is Trusted by High-Traffic Mobile Apps

When performance and security matter, so does your development partner.

Codeslu mobile solutions are built for scale, stability, and UX clarity just like we delivered for AuthOne. Whether you’re starting from scratch or need to push an existing platform to the next level, our team delivers custom software solutions that your users (and your business) can count on.

Need a secure, scalable mobile app? Let Codeslu build it or make it better.

Codeslu

2025-02-28

iOS

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