1 September 2026
Bupa rebuilt aging health app using AI-assisted code translation
First reported
The Algorithm ran this on .
- Bupa moved its My Bupa app from Xamarin, a discontinued framework, to Swift and Kotlin, native languages for iPhone and Android.
- After the rebuild, the app's user rating jumped from 3.7 to 4.7 stars and crash rates fell by up to 24 percentage points.
- AI tools helped reverse-engineer the old code and translate it to new languages, cutting typical modernization time by 60 percent.
How it was covered
The AlgorithmMIT Technology Review
Bupa migrated its My Bupa mobile app from end-of-life Xamarin to native Swift and Kotlin, improving app rating from 3.7 to 4.7 and reducing crash rates by up to 24 percentage points. The newsletter argues that AI-assisted reverse engineering helped complete the transformation in 60% less time than pre-AI methods, and that modernization should be treated as business transformation rather than just technology replacement.