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REI3 VS Sing App React Java

Compare REI3 VS Sing App React Java and see what are their differences

REI3

Fulfill your software requirements with REI3 on-premise or in the cloud. REI3 is an open platform for pre- or self-built web applications.

Rating
0 reviews
Pricing
Open source Freemium Free trial €69 / Monthly
Alternatives Is it good?
Sing App React Java

React Admin Dashboard Template with Java Backend

Rating
0 reviews
Alternatives Is it good?
ZeroTwo AI
ZeroTwo is a premium multi-provider AI platform which combines the tools models and features of Claude, Gemini, Grok, Openai and more into one. Canvas, Deep Research, MCP, Connectors, Agents, Projects and even Apps are all available in one place! sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, REI3 seems to be more popular. It has been mentioned 2 times since March 2021.

social mentions
2 vs 0
Developer Tools popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

REI3
Sing App React Java
Website rei3.de flatlogic.com
Pricing
Open source Freemium Free trial €69 / Monthly Official pricing
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Platforms
Browser Linux Firefox Web Cross Platform Cloud +3
—
Company 2020 —
Listed in
Developer Tools Application Builder Open Source Software Development +1
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About REI3 and Sing App React Java

In their own words, as submitted to SaaSHub.

REI3
Sing App React Java

A free to use, open application platform. REI3 offers a growing number of ready-to-use business applications for all company sizes. Running on-premise or in the cloud, REI3 uses modern web technologies to work well on all device sizes, from workstations to smartphones. Also included: The Builder....

Read more about REI3

No description of Sing App React Java yet.

Features and specs

What each product offers, as listed by its team.

REI3 5 features
Sing App React Java 0 features
  • Unlimited Users
  • Build applications
    Build and publish applications for yourself and others
  • Cloud or on-premise
    Deploy locally on-premise or in the cloud
  • Turn-key solution
    Fully stand-alone solution on Windows - easy to setup on Linux
  • Portable
    Portable version for testing & development

No features have been listed yet.

Analysis

An editorial look at what each product does well and who it suits.

REI3
Sing App React Java

No analysis of REI3 yet.

Overall verdict

  • Sing App React Java by Flatlogic is a solid, well-structured admin dashboard template that pairs a modern React frontend with a Java (Spring Boot) backend, making it a good choice for developers who want a ready-made full-stack starter kit rather than building an admin panel from scratch.

Why this product is good

  • Combines a React frontend with a Java/Spring Boot backend, giving a complete full-stack boilerplate out of the box
  • Includes pre-built UI components, charts, tables, and forms that speed up dashboard development
  • Clean and modern design that follows common admin panel UX patterns
  • Comes with authentication and basic CRUD operations already implemented
  • Good documentation and support from Flatlogic for setup and customization
  • Regularly maintained and updated to keep dependencies current
  • Affordable compared to hiring a developer to build a similar boilerplate from scratch

Recommended for

  • Developers who want a quick-start template for building admin panels or internal tools
  • Teams building SaaS products that need a Java backend paired with a React UI
  • Freelancers or agencies looking to speed up client project delivery with a pre-built dashboard
  • Startups wanting to prototype an admin interface without investing heavily in initial UI/UX design
  • Java developers who prefer Spring Boot but want a modern JavaScript frontend without building it themselves

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
REI3
Sing App React Java
100% 100%
Developer Tools
0% 0%
100% 100%
Development
0% 0%
100% 100%
Application Builder
0% 0%
100% 100%
Business & Commerce
0% 0%

User comments

Share your experience with using REI3 and Sing App React Java. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

REI3 2 mentions
Sing App React Java 0 mentions
  • Best Software for Business
    With REI3 you can fulfill your requirements. REI3 is a business management software, super flexible, opensource and free of charge. You can find a live demo on the REI3 website. https://rei3.de/home_en/. Source: about 5 years ago
  • Migrate or upload legacy code to Outsystems?
    Btw. I also work on a low-code platform (REI3) - we are free to use but have no feature like that. Source: over 5 years ago

Tracking Sing App React Java since May 2022.

Alternatives to REI3 and Sing App React Java

When comparing REI3 and Sing App React Java, you can also consider the following products.

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