# ChStrip — Equalizer / Compressor > AudioUnit Extension channel strip plugin with EQ and compressor for music production. (iPhone/iPad app by Ryo Togawa.) - Source: https://appshunter.io/ios/app/chstrip/id1518510831 (this page in markdown: same URL + `.md`) - Developer: [Ryo Togawa](https://appshunter.io/developer/1474193056) - Category: Music - Price: $4.99 - Rating: 5.00/5 from 8 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 13.5 · 2 MB - Languages: American English - Released: 2020-06-21 - Data updated: 2026-08-24 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/chstrip/id1518510831/reviews.md ## What is ChStrip? ChStrip is an AudioUnit Extension channel strip plugin which contains an equalizer and a compressor for tracking and mixing. The equalizer is a three band EQ consists of low shelving filter, mid peak / notch filter and high shelving filter. The compressor is a dynamic range compression module uses feed-back topology for natural and musical sound. Both of the equalizer and compressor are not emulation of the particular hardware, but they are build by incorporating the techniques used for the analog circuit modeling. Features ChStrip (AUv3) Equalizer - 3-band EQ, Low Shelving filter, Mid Peak / Notch filter and High Shelving filter. - This Mid filter is different from the mid filter of the channel equalizer plugin. Bandwidth is wider (1 octave) and gain is reduced (+/- 14 dB) Compressor - Stereo dynamic range compression - Feedback topology (Implemented by delay free feedback loop) - Side chain high pass filter - Soft clip, Peak Limiter - Auto fade in and auto fade out Host Application Host application uses system audio input as an audio source and processed audio signal is routed to the system audio output. ## Key features - 3-band equalizer - Low shelving filter - Mid peak/notch filter - High shelving filter - Stereo dynamic range compressor - Feedback topology - Side chain high pass filter ## Chart rankings - #199 in Top Paid · Music (US App Store) ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/chstrip/id1518510831/reviews.md ### 5/5 — Amazing *2025-04-29* Built in soft clipper is a real game changer and for an amazing price I always use this plugin on my master track ### 5/5 — Great AUV3 *2023-05-12* Best channel strip available more important is that it has not been abandoned like so many have ### 5/5 — Very useful *2020-11-02* This apps definitely has a place in each of a series of channels (AUM) feeding the master bus mix .top job 👏👏👏👏🙏🎶🎩🦄🎵 Limbic ### 5/5 — Very useful *2020-07-26* Sounds good too. ## Frequently asked questions about ChStrip ### What is ChStrip? ChStrip is an AudioUnit Extension channel strip plugin that provides a three-band equalizer and a dynamic range compressor. It is designed for tracking and mixing audio on iOS devices. ### What are the key features of ChStrip's equalizer? The equalizer in ChStrip features a 3-band design with low shelving, mid peak/notch, and high shelving filters. The mid filter has a wider bandwidth (1 octave) and a gain range of +/- 14 dB. ### How does ChStrip's compressor work? ChStrip's compressor is a stereo dynamic range module utilizing feedback topology for a natural sound. It includes a side chain high pass filter, soft clip, peak limiter, and auto fade in/out features. ### What devices does ChStrip support? ChStrip is compatible with iPhone, iPad, and iPod devices. It utilizes system audio input and routes processed audio to the system audio output. ### How much does ChStrip cost? ChStrip is available for a one-time purchase of $1.99. There are no in-app purchases or subscriptions required. ### Is ChStrip suitable for beginners? With its advanced features and analog circuit modeling, ChStrip is best suited for users with some experience in audio production. However, its intuitive design can be learned by dedicated beginners. ### How often is ChStrip updated? The latest version of ChStrip is 1.8, last updated on January 13, 2026. Updates typically include feature enhancements and bug fixes. ### Does ChStrip have ads? No, ChStrip does not contain advertisements. As a paid application, it offers an uninterrupted user experience. ## Version history (last 5 releases) ### 1.8 — 2026-01-13 Version 1.8 contains improvements and bug fixes. - Support iOS 26 and iPadOS 26. ### 1.7 — 2023-11-15 Version 1.7 contains improvements and bug fixes. - Added functions to export/import user presets to iCloud in order to copy the presets from one device to the other device. ### 1.6 — 2023-09-18 Version 1.6 contains improvements and bug fixes. - Support iOS 17 / iPadOS 17. ### 1.5 — 2023-06-08 Version 1.5 contains improvements and bug fixes. - Fix a problem that AudioUnit Extension doesn't load in host application. ### 1.4 — 2022-09-09 Version 1.4 contains improvements and bug fixes. - Support iOS 16 / iPadOS 16. ## Apps similar to ChStrip | App | Rating | Price | Category | | --- | --- | --- | --- | | [Music Player X : MPX Equalizer](https://appshunter.io/ios/app/music-player-x-mpx-equalizer/id1221701870) | 4.3 (1,125) | Free | Music | | [Equalizer+ HD music player](https://appshunter.io/ios/app/equalizer-plus-hd-music-player/id777191669) | 3.8 (9,346) | Free | Music | | [Equalizer Fx: Bass Booster App](https://appshunter.io/ios/app/equalizer-fx-bass-booster-app/id1084228340) | 4.2 (27,913) | Free | Music | | [Equalizer+ Music amp & Podcast](https://appshunter.io/ios/app/equalizer-plus-music-amp-and-podcast/id814288775) | 4.0 (782) | Free | Music | | [Boom: Bass Booster & Equalizer](https://appshunter.io/ios/app/boom-bass-booster-and-equalizer/id1065511007) | 3.8 (4,352) | Free | Music | | [Equalizer](https://appshunter.io/ios/app/equalizer/id321267949) | 3.3 (138) | $3.99 | Music | ## More apps by Ryo Togawa - [VADrumSM](https://appshunter.io/ios/app/vadrumsm/id1474193057) - [ChannelEqualizer](https://appshunter.io/ios/app/channelequalizer/id1513527511) - [TfxEcho](https://appshunter.io/ios/app/tfxecho/id1523777426) - [TfxMod](https://appshunter.io/ios/app/tfxmod/id1524639578) - [TfxReverb](https://appshunter.io/ios/app/tfxreverb/id1529840178) All apps by Ryo Togawa: https://appshunter.io/developer/1474193056 --- *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 2026-08-24.*