ERoar vs Catalist
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
ERoar
This app provides real-time catalytic converter values, allowing users to track stock and see market fluctuations. It also facilitates direct connections with a network of buyers for sales.
- Real-time catalytic converter values
- Stock tracking and value monitoring
- Connect with a network of buyers
- Buyer directory for potential customers
- Market-linked pricing
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E-Roar is the first truly independent source for accurate Catalytic Converters values; market linked in real-time to ensure you get the right price...every time! E-Roar allows you to track your stock, and instantly see its value. You can even see whether or not your stock's value has gone up or down. E-Roar allows you to connect to and choose from a network of buyers. You can then contact them directly and make a sale. Buyers can register to be added to our directory, allowing potential customers to find you. ERoar is subject to Apple's standard terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Catalist
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Catalist is a professional application for registered users that enables the accurate valuation of car catalytic converters. With Catalist, you will quickly and accurately know the value of your catalytic converter using current market data. In order to use the valuation function, the purchase of an in-app subscription is required. We offer convenient subscription plans tailored to the needs of both individuals and large companies. Terms of use: https://www.catalistapp.com/terms-and-conditions
Screenshots
Verdict
The clearest difference is update cadence: Catalist at every 4 weeks against ERoar's every 5 months. Catalist also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. ERoar sells 1 in-app purchase, starting at $9.99 per month and Catalist sells 5 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.
ERoar ships an update every 5 months, Catalist every 4 weeks. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.
| Parameter | ERoar | Catalist |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 4 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | โ |
| Devices | iPhone | iPhone, iPad, iPod โ better |
| Requires iOS | 17.0 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 3 MB | 29 MB |
| Age rating | 17+ | 4+ |
| Developer | ERoar Digital | Marcin Biczysko |
In-app purchases
ERoar
- Premium3 Months trial$9.991 Month
Catalist
- Starter$12.991 Month
- Business$34.991 Month
- Professional$89.991 Month
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- Professional$99.993 Months
- Professional Plus$299.991 Year
Questions
Is ERoar free?
Is Catalist free?
Do ERoar or Catalist have ads?
Which is updated more often, ERoar or Catalist?
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