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Best Catalytic Converter Apps

250+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated September 2026

If you already know Eco Cat App, this is the deeper bench. 250+ catalytic converter apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Catalytic Converter Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Eco Cat AppEco Cat AppFree4.7★ (2K)NoYesSep 2026
2Cat DB – Catalytic ConvertersCat DB – Catalytic ConvertersFree4.7★ (68)NoYesSep 2026
3Catalytic Converter DatabaseCatalytic Converter DatabaseFree3.1★ (20)NoYesJul 2026
4CatXapp: Catalytic ConverterCatXapp: Catalytic ConverterFree4.9★ (9)NoYesSep 2026
5White Converter RecyclingWhite Converter RecyclingFree5.0★ (2)NoNoMay 2026
6Catalytic Converter GuideCatalytic Converter GuideFree3.6★ (14)NoYesSep 2026
7Converter ConnectionsConverter ConnectionsFree3.2★ (11)NoYesSep 2026
8FVP Catalytic ConvertersFVP Catalytic ConvertersFree5.0★ (1)NoNoMay 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
Cat DB – Catalytic Converters#2

Cat DB – Catalytic Converters by D8ta Technologies LLC

Scrap catalyst marketplace
Strong Contender
🔍 Reference
4.7(68 ratings)
FreeIn-App Purchases
#99in Reference
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 comprehensive pricing and identification tools for catalytic converters. Search by VIN, make/model, or partial codes, and access detailed photos and 3D models to confirm authenticity and aid removal. It connects users with buyers and offers live market pricing.

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 September 2026, with a 4.7-star average from 2K App Store ratings, and it's free to download.
Yes — 19 of the top catalytic converter apps we rank are free to download, including Eco Cat App and Cat DB – Catalytic Converters.
Eco Cat App has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ catalytic converter apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The Eco Cat App provides a comprehensive catalog of over 20,000 scrap catalytic converters, allowing users to look up their value. It uses advanced technology and laboratory analysis to determine the precious metal content, ensuring accurate appraisals and helping sellers get a fair deal.
You can conveniently look up the value of your spent catalytic converters either by car brand or catalytic converter manufacturer directly within the app. The prices are updated frequently to reflect current market conditions.

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