# React App vs Catalopedia

The clearest difference is rating: React App at 5.0 against Catalopedia's 1.0. React App also leads on in-app purchases (none vs 5). Catalopedia's advantage is update cadence (every 3 weeks vs every 2 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Catalopedia sells 5 one-off in-app purchases. React App asks for nothing beyond the download.

React App holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

React App ships an update every 2 months, Catalopedia every 3 weeks. The most recent releases landed on June 4, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | React App | Catalopedia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/react-app/id1504202095/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/catalopedia/id1662071607/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 45 MB | 61 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mission Rabies Ltd](https://appshunter.io/developer/984491450) | [Skrya Pte Ltd](https://appshunter.io/developer/1607060618) |

## What reviewers say

### React App

[App page](https://appshunter.io/ios/app/react-app/id1504202095)

This app is a comprehensive management system designed for tracking and investigating rabies cases. It provides a structured platform for data collection and case management.

**Highlights:** Rabies case investigation, Management system, Data collection, Case tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Catalopedia

[App page](https://appshunter.io/ios/app/catalopedia/id1662071607)

This app serves as a comprehensive encyclopedia for catalytic converters, offering free, unlimited searches. It provides transparent pricing, accurate metal and FX updates, and detailed 3D rendered images with exact measurements. The app also features an AI-powered identification tool and welcomes collaboration for expanding its product catalog.

**Highlights:** Unlimited free catalytic converter searches, Transparent pricing with customizable rates, Hourly updated metal and FX prices, 3D rendered images with exact measurements, AI-powered converter identification (Beta), Country-specific product differentiation, Collaborative expansion of product catalog

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Credits | $29.99 | one-time |
| 66 Credits | $59.99 | one-time |
| 144 Credits | $99.99 | one-time |
| 225 Credits | $179.99 | one-time |
| 360 Credits | $229.99 | one-time |


## Frequently asked questions

### Is React App free?

React App is free to download, with no in-app purchases.

### Is Catalopedia free?

Catalopedia is free to download, with in-app purchases available.

### Which has better reviews, React App or Catalopedia?

React App is rated higher. React App averages 5.0 out of 5 from 2 ratings, while Catalopedia averages 1.0 from 2 ratings.

### Do React App or Catalopedia have ads?

Neither React App nor Catalopedia shows ads.

### Which is updated more often, React App or Catalopedia?

React App ships an update every 2 months, and Catalopedia every 3 weeks. Most recently, React App was updated on June 4, 2026 and Catalopedia on June 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*