# Jussi - Vocal Synthesizer > Male voice vowel synthesizer with advanced formant and throat emulation. (iPhone/iPad app by Klevgrand Produkter AB.) - Source: https://appshunter.io/ios/app/jussi-vocal-synthesizer/id1151014469 (this page in markdown: same URL + `.md`) - Developer: [Klevgrand Produkter AB](https://appshunter.io/developer/1118902192) - Category: Music, Entertainment - Price: $8.99 - Rating: 3.80/5 from 13 App Store ratings · 17 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 13 MB - Languages: American English - Released: 2016-09-23 - Data updated: 2026-08-27 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/jussi-vocal-synthesizer/id1151014469/reviews.md ## What is Jussi? This synthesizer emulates male voice vowels in a unique way. Thanks to a set of powerful parameters you can make Jussi sing anything from soft and airy choir-like vowels to hard and angry shouting. Formants are controlled by playing with different velocity, which makes it fun and easy to play using a MIDI keyboard. Features: • AUv3, works with AUv3 compatible hosts like Garageband, Cubasis, AUM etc. • ADSR with ”Turn-in” and ”Turn-out” option (Turn-in and Turn-out affects the pitch and maps it to attack and release) • Voice character XY pad (Intensity and Narrowness) • Legato mode (glides between notes and velocity levels) • Legato Hold mode (polyphonic legato when using a sustain controller, consult the documentation for more info) • Throat emulation XY pad (Grain and Tonality) • Built-in reverb iPhone 6 or later is recommended. iPad 4 or later is recommended. Documentation is available at https://klevgrand.se/products/jussi Feedback or suggestions? Drop us a mail: support(at)klevgrand.se or @klevgrand on Twitter ## Key features - AUv3 compatibility - ADSR with pitch mapping - Voice character XY pad - Legato and Legato Hold modes - Throat emulation XY pad - Built-in reverb ## Recent user reviews (10 of 17) All indexed reviews: https://appshunter.io/ios/app/jussi-vocal-synthesizer/id1151014469/reviews.md ### 2/5 — Sounds great, but… *2022-06-05* Sounds great but doesn’t work with my ewi. Can you guys make this work as well as PIPA does? I actually purchased this synth because Pipa was so fantastic. Please fix ### 5/5 — amazing developer *2021-12-12* i love these synths and only use these ### 2/5 — meh *2020-12-08* so i wasn’t looking for this. it was basically a waste of my $7. but it’s still good to annoy my friends with high pitched drill-like noises! ### 1/5 — The girl with the nonfunctional tattoo *2020-12-06* Does not work at all in GarageBand...in any configuration whatsoever. Thanks a lot, Sweden. I am unemployed so $7 wasted is a lot of money for me. So disappointing. ### 4/5 — Update? *2020-11-17* Love love love this app, when it was working. I often use this for my music production work but for some reason none of my plugins that I’ve purchased from your company are working and I wonder if it’s because of the new iPad OS 14.2??. Please can you guys get this sorted!! ### 5/5 — The real Jussi *2020-11-07* I really have some great sessions working with app...carefull set up , decent reverb and a little modulation and boom...unique sound scape...nice 👏👏👏👏🦄🎩 ### 5/5 — Does what it does *2020-05-27* This is a vocal synth. It produces a synthesized voice. There are a few variables to control but this is not subtractive, modular, granular or FM synthesis. It’s a voice w/ some parameters to adjust but it’s still the same voice. There’s not a way to control the vowels that the voice sings. In fact, it makes a sound that is like all vowels combined or perhaps, absent of any vowel sounds at all. It’s like a voice singing trying to sing “aahhhhhh” but it sounds more like “uyghhhhhhh”. You can get a lot of weird sounds from it. It definitely sounds like a voice. It’s klevgrand so it’s good. I think it’s great. I read the reviews first. I got exactly what I was expecting and hope this helps someone else to expect exactly what they’re getting. ### 5/5 — Prima! *2019-12-23* Ich kann nun das hohe C von Jussi Björling simulieren :-). Auch die anderen Klänge sind interessant und gefallen mir gut ...- eine liebevoll gestaltete App. ### 5/5 — Look up a video *2019-01-08* Look up a video so you know what you are buying. I got what I wanted cause they don’t have other voice synth apps like this. Wish they had more voices though or more voice apps. Wish it was cheaper ### 1/5 — What a rip off... *2018-08-09* Ok so I paid $10.99 for this 30 seconds ago and I played with it and it sucks. I can’t record anything It doesn’t do $10 worth ... ## Frequently asked questions about Jussi ### What kind of sounds can Jussi create? Jussi emulates male voice vowels, allowing for a wide range of vocalizations from soft, airy choir-like sounds to hard, angry shouting. Its parameters enable detailed control over formants and voice character. ### How is Jussi priced? Jussi is a paid application, available for $8.99. There are no in-app purchases or subscription fees associated with its use. ### Does Jussi have ads? No, Jussi does not contain advertisements. It is a premium application that offers an ad-free experience. ### What devices is Jussi compatible with? Jussi is compatible with iPhone, iPad, and iPod touch devices. An iPhone 6 or later, or an iPad 4 or later, is recommended for optimal performance. ### How often is Jussi updated? The latest version of Jussi is 1.2.0, released on November 22, 2021. While updates are not frequent, the app is stable and functional. ### Can Jussi be used with other music apps? Yes, Jussi supports AUv3, allowing it to be used within AUv3 compatible hosts such as Garageband, Cubasis, and AUM. ### What is the age rating for Jussi? Jussi has an age rating of 4+, making it suitable for a wide range of users. The app's content is not considered mature. ### How does Jussi handle note transitions? Jussi features a Legato mode that allows for smooth glides between notes and velocity levels. It also includes a Legato Hold mode for polyphonic legato when using a sustain controller. ## Version history (last 5 releases) ### 1.2.0 — 2021-11-22 - Updated keyboard - Midi support - Export/import presets ### 1.1.0 — 2021-05-26 - Fresh new userinterface and graphics - Minor bug fixes ### 1.0.2 — 2017-03-24 This app has been updated by Apple to display the Apple Watch app icon. • New preset system allowing users to save presets in standalone mode. If you’ve saved presets in AUv3 mode, these will be synced after the first launch in AUv3 mode. • Fixed a rare bug causing noise when playing notes some times. ### 1.0.1 — 2017-01-24 • Added presets • Issue with Garageband and iOS 10 fixed • New keyboard graphics (Standalone) ### 1.0 — 2016-09-23 No release notes. ## Apps similar to Jussi | App | Rating | Price | Category | | --- | --- | --- | --- | | [Async Sampler](https://appshunter.io/ios/app/async-sampler/id6453162970) | 4.5 (18) | $14.99 | Music | | [spectwhirl](https://appshunter.io/ios/app/spectwhirl/id6471030896) | 4.0 (5) | $4.99 | Music | | [sub808](https://appshunter.io/ios/app/sub808/id6475637520) | 4.2 (10) | $9.99 | Music | | [VAPolyMkII](https://appshunter.io/ios/app/vapolymkii/id6476809566) | 4.6 (11) | $14.99 | Music | | [GSDSP Quantum Distortion](https://appshunter.io/ios/app/gsdsp-quantum-distortion/id6476145487) | 5.0 (10) | $14.99 | Music | | [Dub Filter - High Pass](https://appshunter.io/ios/app/dub-filter-high-pass/id6478895441) | 5.0 (6) | $14.99 | Music | ## More apps by Klevgrand Produkter AB - [SquashIt multiband distortion](https://appshunter.io/ios/app/squashit-multiband-distortion/id796836524) - [R0Verb multi delay-line space machine](https://appshunter.io/ios/app/r0verb-multi-delay-line-space-machine/id937195891) - [Svep - phaser, flanger, chorus](https://appshunter.io/ios/app/svep-phaser-flanger-chorus/id940079014) - [Enkl - monophonic synthesizer](https://appshunter.io/ios/app/enkl-monophonic-synthesizer/id968693910) - [Korvpressor](https://appshunter.io/ios/app/korvpressor/id995163144) - [Esspresso](https://appshunter.io/ios/app/esspresso/id1037999669) All apps by Klevgrand Produkter AB: https://appshunter.io/developer/1118902192 ## Related topics [synthesizer singing](https://appshunter.io/ios/topics/synthesizer-singing) --- *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 2026-08-27.*