Custom Tailored Solutions

The heavy lifting behind your ideas.


Mobile application, Web application


Overpass is a mobile application designed on two basic mobile platform, iOS and Android, which gives user the most basic and simplest approach to capture any contact information. Overpass app also give user the ability to store all capture data to web server as an online storage, which can syncs to many different devices so user can run the app every time, every where with the same data. Web application supports user to manage their user account and purchase subscription plan with many usage limits to support user demand.

MagRabbit's Solutions

  • Use the leading programming language, Object-C and Xcode to build mobile app.
  • Build the website using PHP language, Django framework for the most function website experience.
  • Design a suitable AWS system with the combination of different services: EC2, Elastic Beanstalk, RDS, S3 to handle high-volume of data transaction via syncing between mobile and server.
  • For subscription on web server, we use Chargify, an online service and platform that manages subscription and automates billing.


Overpass mobile apps have been published to Apple Store and Google Play, running smoothly on both mobile and server. It has been used by many business teams and receives positive feedback for the convenient use.


44 Doors Team


Front-end: HTML5, Bootstrap 3, AngularJS
Back-end: Python Django framework
Infrastructure: AWS EC2, S3, RDS for MySQL, Elastic File System, Auto-Scalling, Elastic Load Balancing, CloudFront CDN, Cloudwatch
Mobile App: Objective-C, Xcode, Crashlytics, Java, Chargify, Zapier, Flurry
Other projects we have done
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