Toptal helps leading education technology company migrate large-scale app to React Native.
An education technology company partnered with Toptal to transition its Android application to React Native, simplifying mobile development for an app serving tens of millions of active users.
Client
A US-based education technology company running a classroom app used by tens of millions of people.
Employees
Revenue
Industry
Educational ServicesDelivered Services
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The company had many JavaScript developers but limited Kotlin expertise, leaving product teams dependent on a small Android team for native development while undertaking a multiyear transition to React Native.
Solution
Cross-platform Mobile Expertise
Toptal provided expertise in both Kotlin and React Native, supporting existing Android functionality while progressively rewriting individual modules and comparing their performance with the native implementations.
Rigorous Migration and Testing
Toptal tested rewritten modules through controlled experiments, investigated performance differences between Kotlin and React Native implementations, and resolved complex integration issues before moving new functionality into production.
Outcome
Faster Independent Development
Completing the React Native transition enabled JavaScript developers across product teams to develop mobile features independently, reducing their reliance on specialized Android engineers and accelerating development.
AI-assisted Problem-solving
Toptal also used Cursor and Claude Code to analyze tasks, compare implementations, and support code reviews, including resolving application accessibility issues in three days.
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