Dhrubok Infotech Services Ltd.


Developed for:



Identity, Travel, Healthcare

Case Studies


Credntia is the world’s leading personal identity management system that enables you to define and show who you are wherever you are. Make your life digitized and rock!

Project Gallery

Project Description

Dhrubok Infotech Services Ltd. worked for Credntia LLC as a consultant to help them build the world’s leading identity management system. With the help of the exceptionally talented team of engineers and designers at Credntia, Mehedi Hasan Khan, the managing director of DISL, led the engineering at Credntia to build a robust, scalable system infrastructure and apps that are a delight to use.


Android, iOS


Credntia lets you scan your documents, be it driver’s license, passport, medical insurance card or whatsoever. The app not only scans the documents but also extracts barcodes and other necessary important information like it. Just scan your document and carry it with you wherever you go. Make your life digitized and rock!

Technology Used:


  • Firebase
  • REST
  • JWT (JSON Web Token)


  • An OpenCV based library for real time scanning of ID documents
  • 128-bit AES encryption with a KeyStore backed key
  • A barcode scanning library based on Google’s mobile vision SDK
  • Dagger 2 for dependency injection
  • Retrofit for REST communication


  • Swift 4
  • A tool for generating VIPER boilerplate components.
  • Alamofire for REST communication


  • Firebase Analytics for tracking key metrics
  • Fabric for tracking key performance metrics, bugs and crashes
  • Intercom for customer communication and analytics.

Client Feedback

“I had the pleasure of working with Mehedi during my time consulting with Credntia, an app company focused on identity management solutions. Mehedi was responsible for leading the development of the company's iOS products, and especially working on the apps security and scanning technology for the collection, storage and retrieval of a users physical identification credentials. He was excellent to work with, explained the technical side of his work in meaningful ways that enable the communications team to translate this work for our website and media assets. He was a pleasure to work with and I look forward to working with him again in the future.”

Kelly Page, Head of Communication, Credntia LLC

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