Duals
An Instant On-Demand Language Learning App Enabling Real-Time Conversations in a TikTok-Style
Location
Global
Industry
Education
Team Size
9 specialists
Duration
1 year
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PROJECT DESCRIPTION
A user-friendly language learning platform designed to connect teenagers with optimal language teachers at the best price. The system implements a cost-effective mobile architecture, integrates external free services, and leverages Agora.io for VoIP calls, Mux for video storage, and Firebase for database management. It supports dynamically changing data, includes a personalized business card site for each teacher, and offers full localization for diverse user regions. Developed with distributed teams, the platform ensures scalability, responsive performance, and an engaging learning experience for young users.
challenges
1.Develop a highly cost-efficient and scalable mobile architecture
2.Integrate multiple external services (Agora.io, Mux, Firebase) to optimize performance and minimize costs
3.Enable seamless handling of dynamically changing data
4.Build a personalized “business card” web page for each teacher
5.Ensure full localization across various regions and languages
CONNECTED SERVEICES
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SOLUTION
Engineered a highly cost-efficient and scalable mobile architecture

We designed a next-generation mobile architecture that drastically reduced infrastructure costs while delivering exceptional performance. Through careful optimization, modular design, and smart resource allocation, the client received a solution capable of scaling smoothly as the user base grew—without unnecessary spending. This approach enabled long-term sustainability and predictable operational efficiency.

Integrated Agora.io, Mux, Firebase and other external services for peak performance

Our team connected multiple third-party services into one cohesive and streamlined system. By leveraging Agora.io for real-time communication, Mux for optimized video delivery, and Firebase for flexible backend capabilities, we ensured fast performance, minimal latency, and significant cost reductions. The result was a powerful, interconnected ecosystem designed to perform flawlessly under real-world workloads.

Enabled seamless processing of dynamically changing data

We implemented real-time data handling mechanisms that adapt instantly to frequent updates from both users and teachers. Through efficient synchronization, intelligent caching, and optimized state management, the platform remained consistently smooth—even when data changed rapidly. Users enjoyed a responsive, always-up-to-date experience across every section of the app.

Created personalized “business card” web pages for every teacher

To highlight each educator’s expertise, we built dynamic, SEO-friendly personal pages that functioned as stylish digital business cards. These pages featured individualized data, media content, teaching details, and contact information—helping each teacher stand out and attract more students. The feature strengthened the platform’s professional identity and boosted user engagement.

Implemented full localization for multiple regions and languages

We delivered comprehensive multi-regional localization, ensuring that every user—regardless of location or language—received a fully tailored experience. From UI text and content formatting to date, currency, and cultural adaptations, the platform adjusted seamlessly to local expectations. This significantly broadened the client’s global reach and improved user satisfaction across diverse markets.

OUR TECHNICAL INPUT
platforms/android
Android
platforms/ios
iOS
devops/firebase
Firebase
platforms/agoraIo
Agora IO
platforms/mux
Mux
back/nodeJs
Node.Js
front/react
React Native
native/obcetiveC
Objective-C
native/swift
Swift
native/cpp
C++
native/java
Java
native/kotlin
Kotlin
front/react
React
front/javaScript
JavaScript
front/typescript
TypeScript
LIFE CYCLE

Planning

We talk about your idea for a product, get a list of requirements, make a plan for the project, draw up some early designs, and plan how we will work together in the future.

BUSINESS ANALYSIS

Experts from our studio will make a detailed list of requirements, describe the project's scope and main business goals, and give an estimate of how much it will cost and how long it will take.

UI/UX DESIGN

The designers at UnciaSoft will look at the market and the competition, then make a beautiful and useful interface with a vivid example of interactions.

ARCHITECTURE DESIGN

At this point in the product's lifecycle, our IT experts will choose the best architectural strategy and technology stack, both backend and mobile, and build the application's foundation.

DEVELOPMENT

All the way through the app development process, we help with project management and quality assurance to make sure that the final product is delivered on time and on budget.

Testing

Before releaze we check whole app before show it to the customers

Production

When the product is ready to be released, we push the app to production and send it to the right app store..

CLIENT TESTIMONIALS
Frans
Frans Cronje
CEO and Co-Founder at DataProphet
UnciaSoft team joined the DataProphet team where we were in trouble sticking to our timeline in the development. The collaboration was very successful. The communication was smooth, timelines were met. They are professional in cross-platform app development. The overall experience was very satisfying and I like to continue to work with them.
Result
The final solution delivered an innovative, TikTok-style platform that redefined online language learning. Users could instantly connect with real teachers, enjoy interactive live sessions, and access personalized experiences—all within a lightweight, high-performing mobile ecosystem supported by reliable third-party integrations.
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