Design custom audio and MIDI effects racks with over 80 building blocks. Route audio in series or parallel and create unique interfaces for your sound processing needs.






108+ iOS apps curated and reviewed
If you already know NuRack Auv3 FX Processor, this is the deeper bench. 108+ fx processor apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of November 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $12.99 | 4.7★ (41) | No | No | Nov 2026 | ||
| 2 | $12.99 | 4.5★ (37) | No | No | Nov 2026 | ||
| 3 | $6.99 | 4.7★ (14) | No | No | Oct 2026 | ||
| 4 | $9.99 | 4.4★ (12) | No | No | Nov 2026 | ||
| 5 | $9.99 was $19.99 | 5.0★ (7) | No | No | Nov 2026 | ||
| 6 | Free | 2.6★ (62) | No | Yes | Oct 2026 | ||
| 7 | Free | — | Yes | No | Nov 2026 | ||
| 8 | Free | 4.0★ (357) | No | Yes | Nov 2026 |






Design custom audio and MIDI effects racks with over 80 building blocks. Route audio in series or parallel and create unique interfaces for your sound processing needs.


This app offers a dual multi-effects processor with 24 distinct audio effects. It allows for flexible routing of effects in series, parallel, or stereo channels, and features an XY pad for dynamic parameter control. An advanced mode provides a mod-matrix, LFO, and Envelope Follower for complex sound design.



This audio effect plugin offers a versatile stereo dynamics processor with a noise gate, compressor/expander, and limiter. Achieve subtle compression, extreme pumping, or maximum loudness with its highly tweakable controls and high-quality DSP.