Back4App is a low-code backend platform utilizing open-source technologies, focusing on app-building features with a simple pricing structure and deployment options across various cloud providers. In contrast, Firebase, a Google product, offers a comprehensive feature set with proprietary technology, complex pricing, and is limited to Google Cloud. Key differences include Back4App's functionality in China, a spreadsheet-like data model, and a more straightforward approach compared to Firebase's sophisticated options.

1. Back4App vs Firebase

2. Back4App Overview
• Low-code backend to build modern applications
• Amalgamation of open-source technologies
• Laser-focused on app building features
• Simple and predictable pricing structure
• Multiple deployment options like AWS, GCP, Azure, DO, etc
• Works for web and mobile applications
• Service works in China
• 24/7 support

3. Firebase Overview
• App development platform from Google
• Proprietary technology from Google
• Comprehensive feature set
• Complex and sophisticated pricing structure
• Deployment on Google Cloud
• Works for web and mobile applications
• Service does not work in China
• 24/7 support

4. Key differences Back4app and Firebase
Description Back4App Firebase
Technology Open-Source Proprietary
Features Laser-focused Comprehensive
Support web apps Yes Yes
Support mobile apps Yes Yes
Free Plans Yes Yes
Pricing Simple and predictable Complex and sophisticated
Hosting Options AWS, GCP, Azure, Digital Ocean GCP
On-Premise Deployment Yes No
Support 24/7 24/7
Works in China Yes No
Dedicated Hosting Yes No
Data Model Spreadsheet like interface Collections or JSON tree