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React

The library for web and native user interfaces

★★★★★ 5.0/5
FactScore™ 109.9
VS

Rely.io

The developer portal with an AI assistant you can speak with

★★★★★ 5.0/5
FactScore™ 100.7

Updated February 2026

React Rely.io
Rating 5.0★ 5.0★
Reviews 157 105
Pros 16 19
FactScore™ 109.9 100.7

FactScore™ Comparison

FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.

👑
109.9
React FactScore™
★ React wins on FactScore™
100.7
Rely.io FactScore™

Pros & Cons

Only in React — Pros

Component-based architecture Dynamic user interfaces Flexibility Fast performance Large ecosystem Scalability Reusable components Strong community support Virtual DOM Easy learning curve Efficient rendering Excellent documentation Modular development State management with hooks Developer experience JSX

Both tools — Pros

—

Only in Rely.io — Pros

Easy to use Internal developer portal AI assistant Boosts engineering productivity Easy setup Streamlines DevOps tasks Intuitive design Time saver Unified engineering stack Automated visibility Custom AI assistant Valuable metrics Dashboard and analytics capabilities Flexible data model Modern interface No-code approach Proactive assistance Quick response time Real-time feedback

Only in React — Cons

JSX love/hate relationship

Both tools — Cons

Complex setup

Only in Rely.io — Cons

Mobile app limitations Pricing concerns

Details

React Rely.io
Categories Interface design tools, Engineering & Development, UI frameworks Engineering & Development, AI Chatbots, AI Infrastructure Tools
Platforms Web Web
Became Popular January 15, 2023 January 8, 2024
Website react.dev rely.io

Who Should Pick Which?

Choose React if...

  • Component-based architecture
  • Dynamic user interfaces
  • Flexibility

Choose Rely.io if...

  • Easy to use
  • Internal developer portal
  • AI assistant

With a FactScore™ of 109.9 vs 100.7, React leads in community reception. React uniquely offers Component-based architecture and Dynamic user interfaces, while Rely.io stands out for Easy to use and Internal developer portal.

3

What Users Say

React

E
Erfan Jan 1, 2025
★★★★★

React powers UniDeck’s intuitive interface, enabling a seamless and dynamic user experience for building dashboards without any coding. Its component-based architecture allowed us to rapidly protot...

A
abhijeet Oct 20, 2024
★★★★★

We have worked on angular extensively in our last startup which was also very good, but for Tablesprint we went for react due to easy learning curve for new team members and for all it's components...

E
Erfan Jun 30, 2025
★★★★★

React powers our frontend because it strikes the right balance between flexibility and performance. It let us build a dynamic UI that supports drag-and-drop editing, real-time updates, and seamless...

Rely.io

Y
YC Apr 2, 2024
★★★★★

Finally an answer to distributed dev stacks! I worked with startups for over 10 years and never once found a tool like this one to answer all the 'hacks' we do to deliver products with small teams....

S
Shashank Mar 22, 2024
★★★★★

Pretty slick and easy to navigate. No brainer.

R
Rahul Sep 25, 2025
★★★★☆

Rely.io is ideal for engineering organizations looking to boost developer productivity and streamline DevOps workflows. However, potential users should be mindful of factors such as pricing transpa...

Frequently Asked Questions

Which is better, React or Rely.io?

Based on FactScore™, React leads with a score of 109.9 vs 100.7. React has a higher rating of 5.0★ compared to 5.0★.

What are the pros of React compared to Rely.io?

React uniquely offers: Component-based architecture, Dynamic user interfaces, Flexibility, Fast performance, Large ecosystem.

What are the pros of Rely.io compared to React?

Rely.io uniquely offers: Easy to use, Internal developer portal, AI assistant, Boosts engineering productivity, Easy setup.

Is React better rated than Rely.io?

React is rated 5.0★ from 157 reviews. Rely.io is rated 5.0★ from 105 reviews.

What is the FactScore™ of React and Rely.io?

FactScore™ weighs rating and review volume together. React scores 109.9 and Rely.io scores 100.7.

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