Triple modular redundancy is critical for applications that require high availability or sensitive data.To ensure adherence to standards such as ISO-27001, having a single source of data and application is not enough.Clouds and internal servers have their own advantages, so it's important to balance between them.A triple redundancy of services helps in choosing the qualitative data in case of conflict between two services.Kubernetes and Docker make simple development and synchronization more easier and cost-effective.For a simple and inexpensive web application, users can choose from a list of software-as-a-service (SaaS) providers.Redundancy requires exceptional rigor and costly management and requires secure synchronization and checking of integrity and data corruption.Blockchain can also be used for redundancy and data integrity, depending on the data format of the application.A combination of an in-house server and cloud can provide a robust, secure application for global companies.