# WretchUp > Playable effect instrument for creating sonic anarchy and unique audio manipulations. (iPhone/iPad app by MoMinstruments GbR.) - Source: https://appshunter.io/ios/app/wretchup/id928543264 (this page in markdown: same URL + `.md`) - Developer: [MoMinstruments GbR](https://appshunter.io/developer/953815356) - Category: Music - Price: $4.99 - Rating: 3.10/5 from 9 App Store ratings · 11 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 15 MB - Languages: American English - Released: 2014-10-22 - Data updated: 2026-08-21 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/wretchup/id928543264/reviews.md ## What is WretchUp? An effect instrument anyone can play - sonic anarchy in the palm of your hand. iOS Mars: "Barely controlled chaos“, "sonic extremes“, "well suited for live use“ Music App Blog: "if you like the occasional dose of sonic mayhem, then this is an app that will let you make it" WretchUp is the sonic instrument from the imagination of Mouse on Mars Instruments. Used by the duo in their live performances, it's a playable effect inspired by analog hardware. Sing into it, speak into it, plug in an instrument, sample sounds, and then make sonic mayhem. It's been tested in Mouse on Mars' live shows and used in studio albums. But now it's available to anyone - whether you're a musician wanting to create unique sounds or you just want to make some wild noises and frighten friends and enemies. // FEATURES - Pitch-shifted delay with feedback and filter - Unique controls, designed to be used in live performance and tested onstage - Play with gestures, even without looking closely at the screen - Record vocals or instruments from the built-in mic or another input - Sample loops and change their speed - Adjust the feedback loop, pitch, and filter for unique sounds - Make inputs by holding down your finger, or lock input for continuous sampling - Inter-App-Audio supported - Audiobus supported www.mouseonmars.com/mominstruments Features artwork by Rupert Smyth. Pure Data-based, open source patch created by Florian Grote and Peter Kirn with Mouse on Mars. App design by Oliver Greschke. Powered by free and open source software libpd. Note: like all mic-based effects, you need to enable microphone input. If you accidentally did not allow mic input, you can allow later via: Device settings, WretchUp, Data settings, Microphone, allow mic input. ## Key features - Pitch-shifted delay with feedback and filter - Live performance-oriented controls - Gesture-based play - Record vocals and instruments - Sample and manipulate loops - Inter-App-Audio and Audiobus support ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/wretchup/id928543264/reviews.md ### 5/5 — hellzyeah *2025-07-15* this is perhaps the best ‘experi(mental)’ ‘noise’ app in the sto luvsit ### 1/5 — App seems to have been abandoned *2020-11-28* The app crashes immediately. It no longer works. ### 4/5 — Fun *2016-12-23, version 1.5* Simple controls and interface but it is fun to use. The sliders and buttons look great and just feel right. Great job. Unique enough effect to make useful too. ### 5/5 — Yes! *2016-03-22* Wonderful tool and toy - thanks a lot - is there any more? ### 4/5 — Wreck your noise! *2015-12-01* This thing is pure evil.. Very crazy sound modulator.. Unlike anything else. Still having issues with stability and the looper, but maybe it will get fixed ### 5/5 — Sound design *2015-11-27* Great for vocal sound design and Drones I love crazy fx ### 5/5 — Psychedelic and Frightening *2015-06-08* A brilliantly simple interface with a deep capacity for sonic mayhem and a looper that lets you play with time, frequencies and feedback. ### 4/5 — Love this app! *2015-02-14* I just got this app and in the first 5 minutes it was really fun. I am a big fan of Mouse on Mars. Good job! ### 5/5 — Nice! *2014-11-09* It is the quickest way to get crazy sounds. I love it. ### 5/5 — Fun. *2014-11-07* Awesome. ## Frequently asked questions about WretchUp ### What is WretchUp? WretchUp is a playable effect instrument designed for creating sonic anarchy and unique audio manipulations. It allows users to process vocals, instruments, and sampled sounds with features like pitch-shifted delay and filters. ### How much does WretchUp cost? WretchUp is a paid application, priced at $3.99. This one-time purchase grants you access to all its features for creating experimental music and sound effects. ### Does WretchUp have ads? No, WretchUp does not contain advertisements. As a paid application, it offers an uninterrupted experience for its users focused on audio creation. ### What devices is WretchUp compatible with? WretchUp is compatible with iPhone, iPad, and iPod devices. It is designed to run on iOS and leverage the capabilities of these Apple mobile devices. ### How often is WretchUp updated? WretchUp was last updated on December 10, 2024, with version 1.5.1. This indicates a commitment to ongoing development and support for the application. ### What is the user sentiment for WretchUp? User sentiment for WretchUp appears mixed, with an average rating of 3.1 stars from 9 ratings. Reviews mention 'barely controlled chaos' and 'sonic extremes,' suggesting it appeals to users seeking experimental soundscapes. ### Can I use WretchUp offline? While the description doesn't explicitly state offline functionality, its core features like audio processing and sampling are likely to work without an internet connection once installed. However, Inter-App-Audio and Audiobus support might depend on other connected apps. ### What age rating does WretchUp have? WretchUp has an age rating of 4+. This suggests that the content and functionality of the app are considered appropriate for children aged four and older. ## Version history (last 5 releases) ### 1.6 — 2026-07-01 - Updated Audiobus - Updated libPD - Bugfixed buzzing sound ### 1.5.1 — 2024-12-10 Bugfix sound issues / Audiobus Update ### 1.5 — 2015-11-22 This app has been updated by Apple to display the Apple Watch app icon. - iPad/Universal version ### 1.2.1 — 2015-04-08 - minor graphical improvements ### 1.2 — 2014-12-19 - Inter-App Audio integration (switch between host and WretchUp screen) ## More apps by MoMinstruments GbR - [fluXpad](https://appshunter.io/ios/app/fluxpad/id975033604) All apps by MoMinstruments GbR: https://appshunter.io/developer/953815356 --- *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 2026-08-21.*