250+ iOS apps curated and reviewed
Every iPhone needs a few good catalytic collector apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.0★ (2) | No | No | May 2026 | |
| 2 |  | Free | 5.0★ (1) | — | No | May 2026 | |
| 3 |  | Free | — | Yes | No | May 2026 | |
| 4 |  | Free | 3.6★ (14) | No | Yes | Sep 2026 | |
| 5 |  | Free | 3.1★ (20) | No | Yes | Jul 2026 | |
| 6 |  | Free | 5.0★ (1) | No | No | Aug 2026 | |
| 7 |  | Free | 1.0★ (2) | No | Yes | May 2026 | |
| 8 |  | Free | 4.7★ (68) | No | Yes | Sep 2026 |
Access a comprehensive database of over 16,000 catalytic converter types. This app aims to bring transparency to the used catalyst market, simplifying sales and connecting users with a global network of agents for efficient service.
Access a real-time price guide for over 20,000 catalytic converters, featuring onsite lab images. Connect with national and international company buyers directly through the Konbatas Cart method for unlimited access to photos, prices, and IDs.
