Firebase & Firebase alternatives – a look at data sync solutions

Data Sync is one of the typical challenges a developer faces. Synchronizing data is hard. While JSON / REST are great tools, building Data Sync yourself is challenging. Therefore, today, we take a look at the out-of-the-box Data Sync market. If you are rather interested learning about data sync in general, check out this article about why data sync technology is more necessary than ever.

Introduction

Firebase is one of the most well-known data sync solutions. Therefore, we look at the market from a “Firebase alternatives” perspective. However, Firebase is purely cloud based and offers no support for local data storage and offline usage. With a huge shift happening in computing from the cloud to the edge, offline-first approaches and Edge Computing are getting more and more important. Therefore, we’ve recently taken a comprehensive look at mobile database and edge database offerings on the market. But what options do Mobile and IoT developers working on the edge have for out-of-the-box Data Sync solutions? Very few. Accordingly, we limit our review ofnthe cloud-based Data Sync offerings to the most prominent cloud services. However, we add all edge / offline Data Sync solutions we know of to the review. 

Firebase

Firebase is a cloud backend service ((Mobile) Backend as a Service ((M)BaaS)) that enables developers to build mobile or web applications without needing to take care of the backend, which includes the data synchronization, scalability, network, infrastructure challenges etc. Firebase, today, offers many different services (e.g. analytics, crashlytics) and goes well beyond Data Sync. We are looking at Firebase from the Data Sync perspective only. Firebase was one of the first Data Sync solutions available on the market together with Parse and Couchbase, which all started in 2011 (Couchbase through a merger of CouchOne and Membase). In 2014 Firebase was acquired by Google. The same year Parse was acquired by Facebook to be subsequently shut down, and Couchbase went on to raise funding. All three are still in use today. 

Firebase Pros and Cons

In the following, we will first look at the advantages and disadvantages of Firebase. Then, we will compare Firebase with Firebase alternatives like Couchbase, Parse and ObjectBox in a comprehensive matrix.  

*** “Firebase has been claimed to be used by Google to track users without their knowledge. On July 14, 2020, a lawsuit was filed accusing Google of (…) logging what the users are looking at in many types of apps, despite the user following Google’s own instructions to turn off the web and app activity collected by the company.” (https://en.wikipedia.org/wiki/Firebase)anced settings.

Firebase Advantages ++

– Cloud based
– Google: large team that supports and maintains it; very low risk of the company failing; however, Google has a reputation of discontinuing products / services, so there is no guarantee
– Backend as a service (ease of use)
– The Firebase Real-time Database has its own advantages:
– Pay as you go, price scales with usage
– Less iOS support (stronger focus on Android)

Firebase Disadvantages —

– Purely cloud based
– Google: vendor lock-in (no migration tools prevents you from making your app portable), you cannot access your data as it is hosted on the Firebase server
– Less flexibility: You cannot optimize the backend to match your app’s needs
– The Firebase Real-time Database has its own drawbacks
– the whole DB is a huge JSON file
– limited querying capabilities
– no way to efficiently filter data
– Easily disorganized, hard to navigate and search
– Cost insecurities, hard – impossible to predict
– Less iOS support (stronger focus on Android)
– Doesn’t work in the countries that don’t allow Google
– User privacy concerns: “Firebase has been claimed to be used by Google to track users without their knowledge. On July 14, 2020, a lawsuit was filed accusing Google of (…) logging what the users are looking at in many types of apps, despite the user following Google’s own instructions to turn off the web and app activity collected by the company.” (https://en.wikipedia.org/wiki/Firebase)

Firebase alternatives: A look at out-of-the-box data sync solutions

The majority of offerings for developers that handle Data Sync as defined here, are cloud-based and fall into the category of BaaS (can also be MBaaS (Mobile Backend as a Service) or PaaS (platform as a Service) or DBaaS (Database as a Service). Typically that means that data synchronisation is only a small part of the whole offering. However, we solely focus on that here.

Data Sync Solution comparison matrix – Firebase and its alternatives

Notes: Microsoft Sync Framework (renamed Sync Framework Toolkit at some point) is a legacy open source product which MS no longer supports

* PostgreSQL vs Postgres
** There are many Cloud Sync alternatives to Firebase, we added the more prominent options and any service that also serves Edge Computing

Data Sync is no standardized term and though it seems to be in use by many big companies and most dvelopers will have a notion of what it is, the devil is in the details. So, we might have missed an important solution or taken an angle someone else would not agree with. Please feel free to let us know what to improve.