# Evil Otto — OTT-Style Compressor for AUv3 > Multiband OTT compressor for detailed audio processing. (iPhone/iPad app by Audio Damage, Inc..) - Source: https://appshunter.io/ios/app/evil-otto/id6760843522 (this page in markdown: same URL + `.md`) - Developer: [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) - Category: Music - Price: $4.99 - Rating: 4.50/5 from 4 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 60 MB - Released: 2026-03-24 - Data updated: 2026-08-26 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/evil-otto/id6760843522/reviews.md ## What is Evil Otto? Evil Otto is a multiband OTT (Over-The-Top) compressor that applies simultaneous upward and downward compression across three frequency bands. The result is dense, hyper-detailed audio where peaks are controlled and quiet details are pushed forward — a sound heard across modern electronic music, pop, and hip-hop production. Features -- Three-Band OTT Compression Evil Otto splits your signal into low, mid, and high frequency bands and applies independent upward and downward compression to each. Quiet details come up, peaks come down, and each band can be tuned separately. -- Precise Control Without Complexity Fifteen parameters give you everything you need and nothing you don't: Depth, Time, independent Down and Up amounts, per-band thresholds, per-band output levels, and input/output gain. -- Sidechain Input Route an external signal to duck the compressed output for rhythmic pumping effects. A dedicated Listen mode lets you monitor the sidechain signal to verify routing. -- Real-Time Metering Nine meters show input levels, gain reduction, and output levels per band. The center meters display both downward compression and upward expansion relative to the threshold, so you can see exactly what the compressor is doing. -- Factory Presets Includes a library of starting points across a range of applications. Save and recall your own presets with the built-in preset browser. -- Cross-Platform Compatible User presets created on iOS work on macOS, Windows, and Linux. Sessions created in GarageBand or Logic on iOS will open the desktop version on macOS. ## Key features - Three-band OTT compression - Precise control parameters - Sidechain input for rhythmic effects - Real-time metering per band - Factory and user presets - Cross-platform preset compatibility ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/evil-otto/id6760843522/reviews.md ### 3/5 — Pretty good but need better thresholds UI controls *2026-06-05* Love the plugin and the colors but please make the thresholds bigger, even on iPad it’s almost unusable, yet it’s the most important controls. Thank you for it is free and really good looking. ### 3/5 — overloads my cpu *2026-04-10* i love this effect. it’s probably the best ios compressor availible. but it’s so difficult to use because no matter the size of the project i put it on, it always overloads my ipad to the point that it basically becomes unusable and i have no clue why. my ipad can comfortably run multiple instances of SFZfizz, decentsampler, IM1 and more in the same track. there’s no reason for a compressor to be more demanding than advanced synth engines and samplers. please make it lighter. **Developer response:** Have you tried turning off the animations and/or glow? We added those so that people with older iPads could use it. Look on the Settings panel. ### 5/5 — Incredible *2026-03-29* Honestly this thing can seriously squish things down to size Amazing app overall ## Frequently asked questions about Evil Otto ### What is Evil Otto? Evil Otto is a multiband OTT compressor that applies simultaneous upward and downward compression across three frequency bands. It's designed to create dense, hyper-detailed audio. ### How does Evil Otto's three-band compression work? It splits your audio signal into low, mid, and high frequency bands, applying independent upward and downward compression to each. This allows quiet details to be brought forward while controlling peaks in each band. ### What kind of control does Evil Otto offer? Evil Otto provides precise control with fifteen parameters, including Depth, Time, independent Down and Up amounts, per-band thresholds, per-band output levels, and input/output gain. ### Can Evil Otto be used for rhythmic effects? Yes, Evil Otto features a sidechain input that allows you to duck the compressed output with an external signal, creating rhythmic pumping effects. A dedicated Listen mode helps verify routing. ### Does Evil Otto have ads? No, Evil Otto does not contain advertisements. ### What is the price of Evil Otto? Evil Otto is available for a one-time purchase of $4.99. ### What devices is Evil Otto compatible with? Evil Otto is compatible with iPhone, iPad, and iPod. ### How often is Evil Otto updated? Evil Otto was last updated on March 24, 2026, with version 1.0. ## Version history (last 1 release) ### 1.0 — 2026-03-24 No release notes. ## More apps by Audio Damage, Inc. - [Grind Distortion](https://appshunter.io/ios/app/grind-distortion/id1249816007) - [Eos 2](https://appshunter.io/ios/app/eos-2/id1252122327) - [Dubstation 2](https://appshunter.io/ios/app/dubstation-2/id1253069666) - [Replicant 2](https://appshunter.io/ios/app/replicant-2/id1261900553) - [Pumphouse](https://appshunter.io/ios/app/pumphouse/id1270238019) - [Axon 2](https://appshunter.io/ios/app/axon-2/id1289090729) All apps by Audio Damage, Inc.: https://appshunter.io/developer/1248448317 ## Related topics [multiband compressor](https://appshunter.io/ios/topics/multiband-compressor) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*