what is Firebase - blog cover

How to acquire a robust backend and accelerate the development process? What about the option of leveraging the app development platform? What is Firebase, and how advantageous it has become for many projects? Let’s find answers to these and more questions about Firebase functions, how it works, and how it can be used in app development.

List of the Content


Firebase is an application development platform providing developers and teams with a suite of tools and services to build and manage their solutions. It was originally founded as a startup in September 2011 by James Tamplin and Andrew Lee and released to the public in 2012. Firebase started as a real-time database backend as a service, allowing developers to synchronize and store data in the cloud, eliminating the necessity of building and managing server infrastructure.

what is firebase

The initial product, called Firebase Realtime Database, was a NoSQL cloud-hosted database that allowed developers to build real-time applications. It provided a real-time data synchronization mechanism that enabled developers to update data on one client device and have it automatically propagated to other connected devices in real-time.

In 2014, Firebase was acquired by Google, which expanded the capabilities and reach of the platform. With Google’s support, Firebase evolved into a comprehensive app development platform, encompassing various features and services for building, testing, and growing applications.

Over the years, Firebase introduced additional services such as Firebase Authentication and Firebase Cloud Firestore. It continued expanding beyond databases and authentication to include services like Firebase Cloud Messaging, Firebase Hosting, Firebase Storage, Firebase Analytics, Firebase Performance Monitoring, etc.

In 2019, Google announced major updates to Firebase, including the integration of Firebase with Google Cloud Platform (GCP), allowing developers to seamlessly use Firebase services alongside GCP services. This integration provided developers with more powerful infrastructure and additional features.

Since its inception, Firebase has gained popularity among developers due to its ease of use, real-time capabilities, and comprehensive feature set. It has become a prominent tool for building mobile and web applications, especially for startups and small-to-medium-sized businesses.

What is Firebase?

That’s an app development platform that provides developers with a ready-to-use backend infrastructure, allowing them to focus on app functionality rather than server maintenance.

Firebase continues to evolve, with Google regularly introducing new products and improvements to the platform, making it a robust and flexible choice for developers in the app development ecosystem. Firebase has become a perfect solution for introducing powerful and manageable infrastructure. It supports a variety of deep integration across numerous platforms. As for the latest updates at Google I/O 2023, the Firebase team added more than 20 Extensions. They are designed to simplify common development tasks by integrating with other Firebase products or third-party services. It’s worth saying that these results are also due to the tight and effective collaboration between Google, the developers’ community, and third-party partners. The platform’s extensive documentation, community support, and regular updates contribute to its popularity among developers and businesses.


Firebase simplifies and accelerates the development process with a comprehensive set of tools and services that handle common backend tasks, enabling developers to build high-quality applications more efficiently.

how does firebase work

As a whole, it works by providing developers with client-side libraries and SDKs that integrate with various platforms and programming languages. Developers can use these libraries and SDKs to interact with Firebase’s services and incorporate them into their applications. The technology takes care of the underlying infrastructure, scalability, and maintenance, allowing developers to focus on building their applications and delivering a great user experience.

Firebase offers a wide range of features and services. The Firebase functions are commonly divided into the following categories like Build Products, Release & Monitor Products, and Engage Products.

Build Products Cloud Firestore
Realtime Database
Remote Config
Firebase Extensions
App Check
Cloud Functions
Cloud Messaging
Cloud Storage
Firebase ML
Release & Monitor Products Crashlitics
Google Analytics
Remote Config
Performance Monitoring
Test Lab
App Distribution
Engage Products Remote Config
Google Analytics
A/B Testing
Cloud Messaging
In-App Messaging

Let’s focus our attention on some core Firebase functions mostly leveraged across numerous projects.

  • Firebase Realtime Database is a NoSQL cloud-hosted database allowing developers to store and sync data in real-time across multiple clients. It enables real-time updates and synchronization, making it suitable for applications that require real-time collaboration or messaging.
  • Firebase Authentication provides a simple way to authenticate users using email/password, phone number, social media logins (such as Google, Facebook, Twitter), and more. It handles user management, authentication flows, and secure access to Firebase resources.
  • Cloud Firestore is another NoSQL document database offered by Firebase. It allows developers to store, sync, and query data for their applications. Firestore provides powerful querying capabilities and supports real-time updates, making it suitable for building responsive applications.
  • Firebase offers cloud storage for storing and serving user-generated content such as images, videos, and other files. It provides a simple API for uploading and downloading files, and the files are automatically stored in a secure and scalable manner.
  • Firebase Hosting allows developers to deploy and host their web applications quickly and easily. It provides a global content delivery network (CDN) to deliver web content quickly to users around the world.
  • Firebase Remote Config enables developers to change the behavior and appearance of their app without requiring an app update. It allows A/B testing, feature flagging, and dynamic content personalization.
  • Firebase Cloud Functions allows developers to write serverless functions that can respond to events and trigger backend logic. It integrates with other Firebase services and external APIs, enabling developers to build serverless backends and automate tasks. It enables developers to extend their applications with custom server-side logic without managing the server infrastructure.
  • Firebase Analytics offers powerful app analytics, allowing developers to track user engagement, app usage, conversions, and user behavior. It provides insights to optimize app performance, user experience, and marketing campaigns.
  • Firebase Performance Monitoring allows developers to gain visibility into their application’s performance. It provides detailed monitoring and reporting on metrics such as app startup time, network latency, and method traces.
  • Firebase Cloud Messaging provides a reliable and scalable messaging infrastructure for sending notifications and messages to users across different platforms, including iOS, Android, and the web. It supports targeted messaging, group messaging, and rich notification content.

What Firebase functions and services can you leverage within your project?

Let’s power your applications with great tech solutions. Existek is at your service to provide professional software development services and deliver functional software for your business.

Contact Us


Firebase simplifies and accelerates the development process by providing a comprehensive set of backend services, allowing developers to focus on building their applications’ core features instead of worrying about infrastructure and server management.

Firebase pros and cons

Discovering the question “What is Firebase” won’t be complete without discussing the technology’s advantages and disadvantages. So let’s start with Firebase pros.

  • Simplified development process: Firebase provides a comprehensive suite of tools and services, eliminating the need for developers to manage and configure complex infrastructure. It brings developers’ focus to building the core features of their applications and accelerating the development process.
  • Cross-platform support: Firebase supports multiple platforms, including iOS, Android, and the web. It offers SDKs and libraries for various programming languages, making it easier to develop applications across different platforms.
SDK Version
iOS 10.11.0
Android *notes
JavaScript 9.22.2
Flutter *notes
C++ 11.1.0
Unity 11.1.0
Admin Node.js 11.9.0
Admin Java 9.1.1
Admin Python 6.1.0
Admin Go 4.11.0
Admin .NET 2.3.0
  • Scalability and reliability: Firebase is backed by Google’s infrastructure, ensuring high scalability, reliability, and uptime for applications. It can handle heavy workloads and automatically scales resources to meet the demands of growing applications.
  • Easy integration with other Firebase and Google services: Firebase services are designed to work well together, allowing seamless integration between different components of the application. This helps developers reduce development time and effort. Firebase seamlessly integrates with various Google services, such as Google Analytics, Google Ads, and Google Cloud Platform. This integration allows developers to leverage additional functionalities and services provided by Google’s ecosystem.

As for Firebase’s disadvantages, it might be recommended to draw attention to the following aspects. Accepting these challenges allows teams and developers to be prepared and know how to deal with possible concerns.

  • Vendor lock-in: Since Firebase is a proprietary platform owned by Google, there is a degree of vendor lock-in. If the team decides to switch to a different platform or cloud provider, it may require significant effort to migrate code and data.
  • Querying capabilities: While Firebase’s real-time database and Firestore offer powerful querying options, they may not support the same level of flexibility as traditional SQL databases for complex queries and joins. It’s important to design the data structure carefully to ensure efficient querying.
  • Pricing: While Firebase offers a free tier, some of its advanced features and higher usage may incur costs. It’s essential to understand the pricing structure and estimate the potential costs before relying heavily on certain Firebase services.
  • Customization limitations: The platform provides a set of pre-built services and features which may not cater to all specific requirements of an application. If developers need highly customized functionalities, they may implement additional backend services or consider other alternatives.

Ultimately, the suitability of Firebase depends on the specific needs of the project. It is a powerful platform with numerous benefits, but it’s important to evaluate its pros and cons in relation to the application requirements before making a decision.


Firebase provides a suite of services that can be used for various use cases. Here’s a brief overview of how development teams can leverage the platform to accomplish specific goals and learn what is Firebase:

How to use Firebase

Build the backend

Firebase offers Firebase Cloud Firestore and Firebase Realtime Database as NoSQL databases that can be used as the backend storage. Developers can create collections, documents and define data models using these databases. Additionally, Firebase provides Firebase Cloud Functions, which allows teams to write serverless functions to handle backend logic and integrate with other Firebase services.

Host web applications

Firebase Hosting allows teams to quickly deploy and host a web app. They can use Firebase CLI  to easily deploy an app to Firebase Hosting. It also supports custom domain setup, SSL certificates, and CDN caching for efficient content delivery.

Test and rollout features

Firebase provides Firebase Test Lab, enabling developers to test created applications on a wide range of real and virtual devices. They can automate tests and analyze the results. For feature rollouts, Firebase Remote Config helps dynamically change the behavior and appearance of the app without requiring a new release.

Monitor an application

Firebase Performance Monitoring provides insights into the app’s performance and helps identify areas for improvement. It tracks metrics such as app startup time, screen render time, and network performance. Firebase Crashlytics helps teams track and analyze app crashes, providing detailed crash reports and stack traces.

Engage end users

Firebase Cloud Messaging enables teams to send push notifications and messages to app users. They can target specific user segments, customize notifications, and track user engagement. Firebase In-App Messaging enables displaying targeted messages and prompts within an app.

Monetize an application

The platform provides Firebase AdMob for app monetization. Developers can integrate AdMob into an application to display various ad formats and earn revenue from ad impressions and clicks. Firebase also offers Google Analytics for Firebase, helping track user behavior and monetization metrics.

These are just a few examples of the many use cases for Firebase. The platform’s versatility and comprehensive feature set make it popular among developers for building robust, scalable, and user-friendly applications across various domains. Besides, Firebase is known for comprehensive documentation, providing detailed guides, tutorials, and code samples for efficient implementation.

How to implement your project with Firebase?

Looking for a professional consultation? Existek’s team of experts is ready to assist you with your questions. We’ll gladly share our extensive knowledge and expertise to come up with a reasonable solution for your project.

Get in touch


Gaining a full understanding of what is Firebase also covers such important aspects as learning market tendencies and discovering Firebase alternatives. It’s a known fact that considering different alternatives helps businesses identify the optimal solution, stay innovative, mitigate risks, optimize costs, and select a tech solution that aligns with their organization’s unique requirements. It is a crucial decision-making process that enhances the chances of success and maximizes the value derived from technology investments.

statistics - alterantive comparison

Therefore, we’ve decided to consider Firebase alternatives for building and managing backend services and infrastructure. Here are some known ones:

AWS Amplify is a development platform provided by Amazon Web Services that offers a range of services for building and deploying web and mobile applications. It provides features similar to Firebase, including authentication, storage, real-time data synchronization, and others.

Looking for a more detailed comparison of AWS Amplify vs. Firebase?

You can find the comprehensive guide on comparing Firebase with AWS Amplify, covering how these platforms could streamline the development process.

AWS Amplify vs. Firebase

Parse is an open-source backend as a service (BaaS) platform that provides scalable cloud infrastructure and a range of features for building applications. It offers features like data storage, user authentication, push notifications, and cloud functions.

Kuzzle is another open-source backend platform that offers real-time data synchronization, user management, geolocation, and other features. It could be deployed in the cloud or on-premises and provides SDKs for various programming languages.

Heroku primarily focuses on hosting and deploying applications rather than providing a full suite of backend services. However, Heroku can be used in combination with other services to create a backend similar to Firebase. It provides excellent flexibility and control over the backend infrastructure. Using Heroku as one of Firebase alternatives may require more configuration and integration work compared to Firebase, which offers an all-in-one solution.

  Open-Source Cloud Deployment Free Tier Support
Firebase + + +
AWS Amplify + + + +
Parse + + +
Kuzzle + + + +
Heroku + +

Technology is constantly evolving, and new alternatives emerge regularly. By considering different options, teams stay updated on the latest advancements and innovations in the field. This allows teams to leverage new technologies that might provide better performance, enhanced features, improved security, or increased efficiency compared to existing options. Exploring alternatives encourages progress and helps them adopt the most cutting-edge solutions. The final choice depends on project-specific requirements, such as the features the teams need, scalability, pricing, and integration capabilities with the chosen programming language or framework.


Checking technology pricing allows teams to evaluate the financial implications of its adoption. It helps them understand the upfront costs, ongoing expenses, and potential return on investment. By assessing the pricing, businesses can also determine if the technology aligns with their budget and financial resources. As long as we discover the question “What is Firebase?”, checking the pricing aspects is also essential.

Firebase offers different pricing plans, and the cost of using this app development platform depends on various factors, such as the specific services and features teams require the amount of data they store or transfer, and the level of usage.

Pricing plans

Developers have the opportunity to start at no cost, as Firebase offers a free plan known as Firebase Spark. It includes a set of features with certain limitations suitable for small-scale projects or experimentation. However, it’s important to remember that the free tier provides limited usage quotas for Firebase services like Firestore, Realtime Database, Hosting, Authentication, Cloud Functions, Cloud Storage, and more.

As for production-level applications or projects that require higher usage limits, Firebase offers the Blaze Plan, which operates on a pay-as-you-go model. The Blaze Plan allows teams to scale usage based on the application’s needs and pay only for the resources they consume. 

Besides, the platform has usage limits for its free and pay-as-you-go plans. These limits may vary across services, and exceeding them can result in additional charges or service disruptions. It’s essential to review the specific limits for each service developer plan to use to ensure they align with the application’s requirements.

All Firebase functions have their own pricing model and usage limits. For example, Cloud Firestore charges based on the number of the document reads, writes, and deletes, while Test Lab charges based on the number of virtual device and physical device tests per day. 

In order to estimate costs for Firebase usage, Google provides a pricing calculator on their website. This tool allows everyone to select the services they intend to use and provides an estimate of the associated costs based on expected usage.

It’s always a great idea to review the official Firebase pricing page or contact the Firebase team for the most accurate and up-to-date information on pricing plans. Knowing the pricing in advance helps the development team plan their budget accordingly. It enables them to allocate funds and resources appropriately, ensuring that they have the necessary finances to implement and sustain the technology. Understanding the costs associated with adoption helps with making informed decisions and avoiding potential financial constraints or surprises down the line.

At the same time, it helps assess its scalability and long-term viability. It allows the team to anticipate future expenses as the organization grows or as the technology evolves. The foresight focuses on informed decisions about the sustainability and feasibility of adopting the technology in the long run.


With its real-time database, easy integration across platforms, serverless architecture, and built-in authentication and security features, Firebase simplifies the development process and allows developers to focus on building innovative and feature-rich applications.

The platform’s cloud functions enable developers to execute server-side code in response to events while hosting and storage services provide seamless deployment and storage options for applications. Firebase’s analytics and monitoring tools offer valuable insights into user behavior and app performance, aiding developers in making data-driven decisions and addressing issues promptly.

Furthermore, Firebase’s extensive ecosystem and integrations expand its capabilities, allowing developers to leverage additional services such as machine learning, A/B testing, and messaging, among others.

By selecting Firebase for their projects, developers can benefit from its robust features, scalability, ease of use, and reliable infrastructure. Whether it’s building real-time applications, developing secure and scalable backend systems, or enhancing user experiences with analytics and personalization, Firebase serves as a valuable tool in the developer’s arsenal, empowering them to create innovative and successful applications.

Have additional questions or need clarification on “What is Firebase”?

Reach out to Existek. We have gained valuable expertise in developing reliable and secure backends, and we would be more than happy to offer our insights to you.

Get in touch

Frequently asked questions

What is Firebase?

Firebase is a comprehensive app development platform backed by Google. It offers a set of tools and services for building, deploying, and scaling applications more efficiently. It simplifies the backend infrastructure required for app development, allowing developers to focus more on building their applications rather than managing servers or infrastructure.

What are core Firebase functions and services?

All Firebase products are divided into three groups and offer such solutions:

  • Build Products

  • Release & Monitor Products

  • Engage Products

How does Firebase work?

It provides developers with a backend infrastructure to handle tasks such as data storage, user authentication, real-time database synchronization, hosting, and more. Firebase simplifies app development by offering pre-built features and APIs, allowing developers to focus on building the frontend of their applications while relying on Firebase for the backend functionalities. Additionally, the platform provides real-time analytics, crash reporting, and performance monitoring to help developers track and optimize their apps.

What is Firebase pricing?

The cost of leveraging Firebase is based on the well-outlined pricing structure. Every team can start with the free tier and continue with the pay-as-you-go plan. It enables developers to scale the usage and only pay for the services they use.

Related articles

    Discuss your project

    EXISTEK is a professional software development service company.