250+ iOS apps curated and reviewed
Out of 250+ master muffler apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (6) | No | No | Aug 2026 | |
| 2 |  | Free | 5.0★ (2) | No | No | Sep 2026 | |
| 3 |  | Free | 3.9★ (9) | Yes | No | May 2026 | |
| 4 |  | Free | 2.5★ (2) | No | No | Jul 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 7 |  | Free | — | No | No | May 2026 | |
| 8 |  | Free | — | No | No | Aug 2026 |
Access key vehicle data in real time, including VIN, odometer, and diagnostic trouble codes. Schedule service appointments for diagnostics, maintenance, or repairs directly within the application.
Browse a comprehensive online catalog of aftermarket automotive exhaust parts. Easily find specific components like catalytic converters and mufflers from popular brands. Utilize a VIN scanner for quick product identification.
Control your Varex exhaust system's sound and performance with this app. Adjust valve positions manually, set parameters to trigger changes, or create geofenced zones for automatic adjustments. An optional free account enhances functionality with cloud storage and diagnostics.
