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Best Catalytic Converter Apps

249+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated October 2026

If you already know Eco Cat App, this is the deeper bench. 249+ catalytic converter apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Catalytic Converter Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Eco Cat AppEco Cat AppFree4.7★ (2K)NoYesNov 2026
2Converter ConnectionsConverter ConnectionsFree3.0★ (12)NoYesOct 2026
3Cat DB – Catalytic ConvertersCat DB – Catalytic ConvertersFree4.7★ (69)NoYesOct 2026
4Catalytic Converter DatabaseCatalytic Converter DatabaseFree3.1★ (20)NoYesOct 2026
5White Converter RecyclingWhite Converter RecyclingFree5.0★ (2)NoNoOct 2026
6CatXapp: Catalytic ConverterCatXapp: Catalytic ConverterFree4.5★ (19)NoYesOct 2026
7PMR CataloguePMR CatalogueFree—NoNoMay 2026
8Catalytic Converter GuideCatalytic Converter GuideFree3.6★ (14)NoYesOct 2026

Top Picks for Catalytic Converter

Eco Cat App#1

Eco Cat App by Ecotrade Tech Company Limited

Ecotrade Group
Editor's Choice
💼 Business
4.7😊(2K ratings)
FreeIn-App Purchases
Eco Cat App screenshot 1
Eco Cat App screenshot 2
Eco Cat App screenshot 3
Eco Cat App screenshot 4
Eco Cat App screenshot 5
Eco Cat App screenshot 6

This app provides a comprehensive catalog of over 20,000 catalytic converters, allowing users to look up their value by car brand or manufacturer. It offers accurate appraisals based on precious metal content analysis and helps sellers negotiate fair deals.

What We Love

  • 👍 Easy to use
  • 🚀 Accurate real-time prices
  • 💎 Comprehensive catalog with photos
  • 💰 Helps maximize scrap value

Room to Improve

  • 🐛 Some missing or incorrect data
  • 💳 Paid subscription required for full access
  • 🕰️ Slow response times at times
  • 🔍 Limited free searches per day
Converter Connections#2

Converter Connections by Catalytic Converter Connections P.C.

Catalytic Converter Search
Strong Contender
🔍 Reference
3.0(12 ratings)
FreeIn-App Purchases
Converter Connections screenshot 1
Converter Connections screenshot 2
Converter Connections screenshot 3
Converter Connections screenshot 4
Converter Connections screenshot 5

Access a vast database of catalytic converter cores with pricing and images. Manage customer information, receipts, and pricing adjustments to ensure profitable transactions. Offers customizable themes, including light and dark modes, for optimal viewing on any device.

Cat DB – Catalytic Converters#3

Cat DB – Catalytic Converters by D8ta Technologies LLC

Scrap catalyst marketplace
Worth Considering
🔍 Reference
4.7(69 ratings)
FreeIn-App Purchases
Cat DB – Catalytic Converters screenshot 1
Cat DB – Catalytic Converters screenshot 2
Cat DB – Catalytic Converters screenshot 3
Cat DB – Catalytic Converters screenshot 4
Cat DB – Catalytic Converters screenshot 5
Cat DB – Catalytic Converters screenshot 6

This app provides real-time pricing for catalytic converters, drawing from a vast database of cars and converter listings. It offers tools for searching by VIN or vehicle details, viewing detailed photos, and comparing market prices. Users can manage their findings in a customizable cart and access support for identifying parts.

More Catalytic Converter apps to explore

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FAQ about Catalytic Converter

What are the best catalytic converter apps for iPhone?
Eco Cat App tops our catalytic converter apps ranking as of October 2026, with a 4.7-star average from 2K App Store ratings, and it's free to download.
Yes — 20 of the top catalytic converter apps we rank are free to download, including Eco Cat App and Converter Connections.
Eco Cat App has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ catalytic converter apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

Related searches

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