What is Realm?
The Realm Mobile Platform is a next-generation data layer for applications. Realm is reactive, concurrent, and lightweight, allowing you to work with live, native objects.
Realm is a tool in the Mobile Database category of a tech stack.
Realm is an open source tool with GitHub stars and GitHub forks. Here’s a link to Realm's open source repository on GitHub
Who uses Realm?
Companies
78 companies reportedly use Realm in their tech stacks, including N26, Patreon, and Biting Bit.
Developers
169 developers on StackShare have stated that they use Realm.
Realm Integrations
Pros of Realm
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Decisions about Realm
Here are some stack decisions, common use cases and reviews by companies and developers who chose Realm in their tech stack.
Mike Endale
at Founder at Moxit · | 7 upvotes · 215.5K views
We are building an offline-first Android SDK app. The solution we're working on runs on a mobile device in areas where internet connectivity is intermittent or does not exist. The applications needs to be able to collect data and when it reaches a home base or finds internet connectivity, we'll sync it with the host.
We've heard Realm and Pouchdb could be a good solution, but we are curious if anyone has any experience with either or have another path forward.
Realm's Features
- Feels like Home - Realm’s data structures look like the Objects and Arrays of your language, but provide additional features such as: querying, relationships & graphs, thread safety, and more.
- Memory-Efficient - Realm is not built on SQLite. Instead, a custom C++ core is used to provide memory-efficient access to your data by using Realm objects, which usually consume less RAM than native objects.
- F-F-Fast! - Realm offers extraordinary performance compared to SQLite and other persistence solutions.
Realm Alternatives & Comparisons
What are some alternatives to Realm?
Firebase
Firebase is a cloud service designed to power real-time, collaborative applications. Simply add the Firebase library to your application to gain access to a shared data structure; any changes you make to that data are automatically synchronized with the Firebase cloud and with other clients within milliseconds.
SQLite
SQLite is an embedded SQL database engine. Unlike most other SQL databases, SQLite does not have a separate server process. SQLite reads and writes directly to ordinary disk files. A complete SQL database with multiple tables, indices, triggers, and views, is contained in a single disk file.
MySQL
The MySQL software delivers a very fast, multi-threaded, multi-user, and robust SQL (Structured Query Language) database server. MySQL Server is intended for mission-critical, heavy-load production systems as well as for embedding into mass-deployed software.
PostgreSQL
PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.
MongoDB
MongoDB stores data in JSON-like documents that can vary in structure, offering a dynamic, flexible schema. MongoDB was also designed for high availability and scalability, with built-in replication and auto-sharding.
