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What is Realm?

Realm is a cutting-edge, mobile-focused open-source object database designed to function flawlessly on smartphones, tablets, and wearable technology. By utilizing a simple, object-oriented data structure, it removes the need for an Object-Relational Mapping (ORM) layer, thus allowing developers to build models with standard classes in widely used programming languages such as Swift, Java, Kotlin, C#, JavaScript, Dart, and C++. Its architecture is optimized for high performance and low memory usage through methods like zero-copy design, lazy loading, and multi-version concurrency control (MVCC), which guarantees safe operations across multiple threads. Furthermore, Realm's live objects and collections automatically synchronize between threads, laying the groundwork for reactive programming practices. It also supports the creation of complex data structures by permitting relationships between objects via links and backlinks. In addition, developers can utilize tools like Realm Studio to explore and adjust local Realm databases, which enhances integration with various platforms, including React Native, Flutter, Xamarin, and Node.js. This flexibility and efficiency make Realm an attractive option for developers aiming to manage data effectively in their mobile applications, ultimately fostering a more seamless app development experience. As a result, Realm stands out in the realm of mobile database solutions.

What is Perst?

Perst is a versatile, open-source object-oriented embedded database management system (ODBMS) developed by McObject, available under dual licensing. It offers two distinct versions: one specifically crafted for Java environments and another geared towards C# applications in the Microsoft .NET Framework. This robust database system empowers developers to effectively store, organize, and access objects, achieving remarkable speed while ensuring low memory and storage requirements. Leveraging the object-oriented capabilities of both Java and C#, Perst demonstrates superior performance in benchmarks such as TestIndex and PolePosition compared to other embedded databases in the Java and .NET ecosystems. A notable feature of Perst is its capacity to directly store data in Java and .NET objects, eliminating the need for translation that is common in relational and object-relational databases, which in turn boosts run-time performance. With a streamlined core that consists of just five thousand lines of code, Perst requires minimal system resources, rendering it an appealing choice for environments with limited resources. This efficiency not only enhances developer experience but also significantly improves the responsiveness of applications that incorporate the database, making it a compelling option for a variety of projects. Additionally, its flexibility and performance make it suitable for both small-scale applications and larger, more complex systems.

Media

Media

Integrations Supported

C#
Java
C++
Dart
JavaScript
Kotlin
Node.js
Objective-C
React Native
Swift
Xamarin

Integrations Supported

C#
Java
.NET
XML

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Version

Pricing Information

Free
Free Version
Free Trial Offered?

Supported Platforms

SaaS

Supported Platforms

Android
Windows
Mac
Linux

Customer Service / Support

Standard Support
Web-Based Support

Customer Service / Support

Standard Support
Web-Based Support

Training Options

Documentation Hub
On-Site Training

Training Options

Documentation Hub
Online Training
On-Site Training

Company Facts

Organization Name

Realm DB

Date Founded

2011

Company Location

United States

Company Website

realm.github.io

Company Facts

Organization Name

McObject

Date Founded

2001

Company Location

United States

Company Website

www.mcobject.com/perst/

Categories and Features

Categories and Features

Embedded Database

Not specified

In-Memory Databases

Not specified

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