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List of Local Databases for React Native Mobile App Development in 2021

List Of Local Databases For React Native Mobile App Development In 2021

React Native has become one of the primary choices to develop cross-platform applications. It is also a cost-efficient solution to develop a mobile app quickly. The demand for React Native app development has grown considerably in the previous few years. Developers are approached to develop high-performance offline first applications that are effectively scalable.

It has made the mobile application developers think about the platform and tech stack to build a React Native app efficiently. React Native now supports platforms like Web, Desktop, and TV, but support for extra information modalities has been deficient. React Native needs to support high-quality interaction experiences on all platforms.

What Should Know Before Selecting React Native Database?

The Complexity of the Data:

Key-value storage is the default option for multiple client-side scripting languages and server-sides. Majorly both keys and values have to be kept in a serial in strings either through a library or by a React Native developer. However, serialization can cause serious issues and halts affecting the app performance, especially when it is working in the limited resource environment of a smartphone with a complex data set.

Hence, a database is selected to help you store data with greater complexity in comparison to the key-value pairs like objects and full documents.

Number of Lines of Code

If over 20 lines of code are needed to write a CRUD operation, at that point try not to be searching for an advanced database for React Native app development will make the coding complicated and will also affect the performance of DB significantly. It can also expand the cost of React Native development. On top of that, processing multiple code lines will only slow down the application.

Hence, try not to utilize advanced databases that may decrease the application experience and slow down the release speed.

Synching of the Offline Data

You should go with a simple database for applications with lower complexity and no multiple-user collaboration and even in offline mode whatever changes that take place locally are synced when the devices come online.

These mobile applications can be synced easily with a server in the presence of an internet connection. An application like Trello, leverage complex data sets to ensure all the documents are in sync on all the devices.

Handling Data Conflicts and Concurrency

The possibility of a data conflict is directly proportional to the number of collaboration features your app has. It is advisable to go with a database that shares the conflict handling policies on the repository pages or website. Read database documents thoroughly to understand how databases handle syncing and conflicts. Also, check out the trade-offs that are done and how they can affect your application.

Memory Management

It offers daily free backups to ensure your critical data is always backed up and safe. Your app can crash due to insufficient memory management. Compaction perhaps the most used process of memory management. It deletes the data or documents that are no longer in use. This process ensures that there is always some free memory available at any point in time.

Top Databases for Your React Native App Development

1. Realm

The realm is an object-oriented, flexible data set that was built to develop offline and real-time apps that work on both smartphones and wearables. It is equally essential for React Native mobile app for iOS and Android. 

Since it was specially created for mobile, the applications you develop on Realm are of high quality, performs great, and is reliable. With React Native app development, Realm is best for large mobile applications and it supports cross-platform.

Benefits of Realm:

Since applications work offline, help you implement offline-first architecture easily, and as well as you can save battery and optimize how you use your CPU and bandwidth. Its lightweight datastore embeds right on the device, and you can read or write data locally.

Use the Realm database to develop all your applications for different mobile platforms. With a simple data model, build applications for both Android and iOS.

Due to this being an object-oriented data model, the database makes sure the data is updated everywhere and you can easily learn to use it.

Realm provides your data remains encrypted while working or idle. Realm can secure even the most sensitive data. Keep your data safe with transparent decryption and encryption.

2. Firebase

Firebase uses real-time listeners to help you protect your data synced across client applications and provides offline support for web and mobile so that users can develop responsive apps server latency and without Internet connectivity.

Benefits of Firebase:

Firebase ensures real-time syncing of data for all clients at the same point in time used by your app, so it can write, read, and hear queries even in offline mode whatever changes that take place locally are synced when your devices come online.

It accompanies with a cross-platform API that requires minimal setup. Additionally, no application server is expected to get data as you access it directly by a Smartphone, and by using data synchronization, it updates the data on a connected device instantly. Moreover, its design also makes it efficient in fetching simple queries.

Although offline, apps always stay responsive as Firebase SDK carries user data to the disk. When getting connected once more, any changes missed by the client device is synchronized with the current server state.

3. PouchDB

PouchDB is a JavaScript implementation of CouchDB is another in-browser database. The open-source DB stores the data in JSON format. It enables an application to save data locally and allows the users to enjoy an application’s various features even when offline. It is compatible with MongoDB,CouchDB, PostgreSQL,and MySQL.

Benefits of PouchDB:

There is no need to run queries over the network as PouchDB remains inside a browser. It helps in quicker execution of questions and it can work on all types of browsers available today by using IndexedDB where required and WebSQL where the previous doesn’t work. From Firefox 29+ to iOS 7.1+ and everything in-between, PouchDB supports.

PouchDB can likewise be used as a direct interface to servers compatible with CouchDB as it can also run in Node.js. You also avoid investing more time writing consistent and clean codes or stressing about the browser’s differences.

4. BerkeleyDB

BerkeleyDB assists developers in creating APIs seamlessly without the requirement for coding. It provides the tools necessary to build a full App backend on the cloud with known functions and the incorporation of third-party services. It is a genuinely serverless platform where you can conduct relational queries and create relational data models instantly. The platform is based on the most famous open-source backend framework, Parse Server Open Source technology.

Benefits of Berkeley DB:

Relational database queries and schema create indexes, query relational data, use geo queries, and combine functions with low latency and responsiveness. You can define the structure of data programmatically with API calls or graphically from the UI.

BerkeleyDB offers auto-generated REST API and GraphQL techniques for every database call function and operation

Use email verifications to validate users and push notifications to engage them. The dashboard enables you to begin sending notifications and emails in a few simple clicks and allows using cloud functions to choose a specific time to send such alerts.

5. Async Storage

Async Storage is a local storage system that enables developers to persist data between application reboots while storing the data locally. AsyncStorage is an unencrypted, asynchronous, persistent, key-value storage system that is global to the application.

Benefits of Async Storage:

On iOS, Async Storage is backed by native code that stores small values in a serialized dictionary and larger values in separate files. On Android, Async Storage will use either RocksDB or SQLite based on what is available. It is an excellent solution to save the data required by the application even after the app or device is closed by the user.

6. Google Cloud Databases

Google Cloud Databases is a fully-managed database service that enables you to install, maintain, and operate relational databases on the Google Cloud Platform. It accompanies three architectures for worldwide data dispersion, namely regional, multi-cloud and hybrid.

Benefits of Google cloud Database:

User data is encrypted on the interior organizations of Google and backups, temporary documents, and data set tables. Google Cloud Data set support private worker access and highlights on-request and automated backups and PITR (point-in-time recovery)

Its scalability allows the replication of data between various zones to match your business growth. Additionally, its automatic failover triggers any time you mess up to decrease vacation by switching to standby.

7. WatermelonDB

WatermelonDB is a reactive database framework that allows you to develop powerful Reach Native applications. Optimized for unmatched performance, it can handle complex applications effectively on React Native. While it comprises the majority of the highlights referenced over, its essential characteristics are as per the following.

Benefits of WatermelonDB:

To improve speed in a modern browser, WatemelonDB utilizes without a moment to spare accumulation. However, you can't discover it for mobile devices as mobile hardware is slower than a PC. This is the reason JavaScript applications function slowly in a mobile application. But, the data set possibly look for additional if necessary; otherwise, it uses SQLite and lazy loading for faster response.

8. SQLite

SQLite was developed to provide local storage for mobile applications. Lite implies that it is a lightweight library that needs insignificant setup efforts. You can also integrate it within the mobile applications to get to the database directly.

Benefits of SQLite

Being an ACID-compliant database, it implements all SQL standards with a few oversights. It has file-based library architecture and comes equipped with tools capable of handling all data types efficiently

You can also use a react-native-SQLite-storage plugin to manage data within the mobile application for offline persistence.


Apart from the above-mentioned best local databases for React Native app development, developers also use other various backend tools to develop mobile apps. The privilege React Native database also depends on the project type. Connect with our React Native experts to see how we can help you.

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