Case study

Metodo Manniello

The Método Manniello is a dietary method developed by Dr. Donato Alberto Manniello over more than two decades of research in alternative medicine, validated across more than 30,000 patients. The mobile app translated the method into personalized weekly menus, an automatic shopping list and cooking tips, distributed internationally in five languages.

30,000+

patients treated with the Manniello method

5 languages

English · Spanish · German · French · Russian

Hybrid → Native

full iOS rewrite from scratch

Client

  • Headquarters

    Bascharage, Luxembourg

  • Industry

    Healthcare and alternative medicine

  • Founded

    1981

Product

  • Platform

    iOS (iPhone)

  • Languages

    English, Spanish, German, French, Russian

  • Product status

    No longer available on the App Store

The challenge

Dr. Manniello's team had initially built a hybrid app that was successfully released on Google Play, but Apple rejected it during App Store review for not meeting their technical standards. On top of the publishing block, the app also suffered from severe performance issues that degraded the user experience on the client's devices. The project needed an intervention that solved both problems —App Store approval and performance— without breaking functional parity with the Android version already in production.

The solution

AtalayaSoft assigned Francisco José García Navarro as a senior iOS engineer to rewrite the application entirely in native code. The scope covered three fronts:

1. Native iOS rewrite from scratch

The original hybrid approach was discarded and the app was redesigned in Objective-C, integrated into Apple's native ecosystem. Local persistence was solved with CoreData (Apple's official framework for structured on-disk data management), removing the performance bottlenecks the hybrid version was carrying. The result was an app Apple approved without observations in the next review submission.

2. Shared backend with Android and web via Parse SDK

To avoid duplicating logic and data across platforms, the iOS app connected to the existing backend through Parse SDK (the backend-as-a-service platform of the time, offering a unified API across iOS, Android and web). This decision allowed the three product versions to share a single source of truth for menus, recipes and subscriptions, simplifying long-term maintenance.

3. Monetization with In-App Purchase and monthly subscriptions

The Manniello method's business model was integrated via in-app purchases with recurring monthly subscriptions using StoreKit. Distribution across five languages —English, Spanish, German, French and Russian— was handled natively with iOS localizable resources, without intermediate layers.

Technologies and services used

  • Language: Objective-C
  • Local persistence: CoreData
  • Cross-platform backend: Parse SDK
  • Monetization: In-App Purchase with monthly subscriptions (StoreKit)
  • Localization: 5 languages with native iOS resources
  • AtalayaSoft service applied: Senior iOS Engineer for your team
Screenshot of the Método Manniello iOS app in its five languages

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