# SoundHi +EQ30 HD Amp & Player — Each instrument volume balance > High-resolution audio player with AI instrument separation and advanced EQ. (iPhone/iPad app by CyberFort LLC.) - Source: https://appshunter.io/ios/app/soundhi-plus-eq30-hd-amp-and-player/id1469178945 (this page in markdown: same URL + `.md`) - Developer: [CyberFort LLC](https://appshunter.io/developer/569899155) - Category: Music, Entertainment - Price: Free with in-app purchases - Rating: 3.90/5 from 32 App Store ratings · 33 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 94 MB - Languages: Russian, American English, Korean, German (Germany), Chinese (Simplified, China), French (France), Japanese - Released: 2019-08-12 - Data updated: 2026-08-30 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/soundhi-plus-eq30-hd-amp-and-player/id1469178945/reviews.md ## What is SoundHi +EQ30 HD Amp & Player? Enjoy the sound of excitement with high quality, high performance and high resolution. Get the full performance of your audio equipment with this app. And experience the great sound quality. Also, feel the future of music with super functions using AI technology. The BEST POWER AMP and the BEST MUSIC PLAYER 1. Enjoy the best sound quality. SoundHi has the “High Performance Sound Engine AQSS-XII”, which provides the highest quality audio using over 64,000 frequency bands. This Sound Engine provides an equalizer, virtual surround, cross fader, gapless playback, silence detection, and a dynamic limiter. 2. Supports playback and output of high-resolution sound sources and CD sound sources. Supports High-resolution sources (premium version) : 1) up to 768kHz/32bits 2) PCM and DoP (DSD over PCM) playback of DSD files up to 12MHz/1bit 3. Enjoy a new era with AI technology. Volume balance adjustment for each vocal and instrument. (Offline AI processing, real-time playback, EX: Remix/Karaoke/Practicing playing parts) 4. Supports a wide variety of audio files Audio file: 1) format - Music Library(iTunes): audio format used by Music App - SoundHi DB: DSD(~12MHz, dsf/dff), FLAC(~384kHz/32bit), WAV(~768kHz/64bit), Apple Lossless(~384kHz), AIFF(~768kHz/32bit), AAC/MP3(~320Kbps), MP4/M4V(as Sound) 2) importing method - Music Library: Automatically, music datas in the music app (required Music app) - SoundHi DB: By iTunes file sharing, AirDrop. By "Files" app (from many Cloud-DB). Also PKG/ZIP files and folders 5. Enjoy a wealth of features. Playback Options: - 2 modes of continuous playback (Medley) 4 modes added (premium version) - Shuffle, Crossfade, Gapless - Background playback, Spectrum analyzer - Speaker, headphones, Bluetooth, AirPlay, lightning - iDevice As Speaker, ... Sound Quality Effect: - Presets equalizer - Graphic equalizer (10 Band, ..., Spline curve) Six types of equalizers (Max 30 Band, premium version) .save/edit own custom Presets - Virtual surround presets - Digital Output (Max 768kHz/32bit with premium version) - DoP output (premium ver.) - Up-sampling - Audio Separator [2 Stems (Vocal/Others)/4 Stems (Vocal/Drums/Bass/Others) premium version] - Time Stretch and Pitch Shift - Crossfeed (premium version) Volume control: - Fine volume, Left/Right balance, Gain - stereo/monaural/... Music Selection - Type: Music Library/SoundHi DB/All (All types) - by artists, albums, songs, playlists, Compilations, ... - save/edit own custom playlists - Shuffle, All songs, Grid View, Mini Player Settings - Digital Output Device Manager (premium version) - Pause Fadeout, Swipe action, portrait/landscape, ... Other - Display lyrics included in the song file Notes : * Music app exclusive data (Apple Music, DRM, iCloud) can be cooperative played back with the restriction function by Music app * Audio Separator requires iOS 12/later, A10/higher CPU, and 3 GB/higher memory. SUBSCRIPTION INFORMATION - Subscribe for unlimited access to our Premium features. - Weekly ($2.99) & yearly ($19.99)* - Free trial subscription is automatically renewed unless cancelled 24 hours before the renewal - Payment will be charged to iTunes Account at confirmation of purchase - Account will be charged for renewal within 24-hours prior to the end of the current period, at the same price - No cancellation of the current subscription is allowed during active subscription period - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Terms of Service: https://www.cyberfort.jp/for-iPhone/eng/soundhi-terms-of-use.pdf Privacy Policy: https://www.cyberfort.jp/for-iPhone/eng/soundhi-privacy-policy.pdf *Price are equal to the value that "Apple's App Store Matrix" determines is the equivalent of the subscription price in $USD. ## Key features - High-performance sound engine with 64,000+ frequency bands - AI-powered instrument and vocal volume balancing - Support for high-resolution audio playback (up to 768kHz/32bit) - Extensive equalizer options (up to 30 bands) - Audio separation into stems (vocal, drums, bass, etc.) - Gapless playback and crossfade - Wide range of supported audio file formats ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Monthly Premium Pass | $5.99 | per month | | Annually Premium Pass | $19.99 | per year | | Weekly Premium Pass | $2.99 | per 7 days | | 6 Monthly Premium Pass | $14.99 | per 6 months | ## Recent user reviews (10 of 33) All indexed reviews: https://appshunter.io/ios/app/soundhi-plus-eq30-hd-amp-and-player/id1469178945/reviews.md ### 5/5 — HiRes player with crossfeed *2026-04-28* Im impressed with this HiRes player. This is primarily the KaiserTone player KaiserTone Audio Player with extra features. I have both apps and use SoundHi mainly for its 'Crossfeed' feature which brings the soundstage a bit more forward when using headphones. It has a great Eq and Its Audio Separator works very well for karaoke or instrument practice. It does connect with Apple Music if you have a subscription however it cannot apply any of its effects to the AM stream. For me the crossfeed and audio separator is worth it. ### 1/5 — App is too expensive! *2025-11-19* Your app is too expensive and should only be a one time charge. And you need to make it so a person can add their own backgrounds. ### 5/5 — Perfect ! *2025-03-16, version 2.5.6* This app is well worth the money ! Every song is like being in the studio ! Clean and crisp with no distortion! Tons of features to craft your sound that way you want ! The perfect companion for my Sennheiser HD 450BT Wireless Bluetooth Headphones ! If your having issues maybe your not using it right or your internet is the problem ! I love it and have had it for three years now with no issues ! ### 1/5 — Disappointing, Avoid The Frustration *2025-01-05, version 2.5.5* I just purchased, via the SoundHi+ trial period offer, a year’s subscription of this player. However, after an hour and a half’s worth of concerted effort I was left with only a malfunctioning player and a litany of frustration and disappointment. Consistently, when attempting to play any song, album, or playlist of my choosing, the application repeatedly kicked me out to my iPad Pro’s home screen and left only soaking in the sweat of my own frustration and disappointment. Unless you have a passion for risk or you’re a gluten for punishment, due yourself a favor, avoid this player. SoundHi+ does have a significant amount of promise: I hope to see it, someday, come to fruition. ### 5/5 — First Rate in Every Respect. *2024-11-03, version 2.5.3* The powerful graphic equalizer alone is more than worth the price of admission. I bought a high-memory iPhone just to keep my vast music library. So, Two things I'd like to have: 1). A search function so I can search for a specific artist, album, or song without having to navigate the tiny alphabet picker with my large fingers. 2.) A most recently added or purchased group, or a way to sort by the length of time a file has been on my phone. Thank you for developing and maintaining a terrific product. ### 5/5 — 最高 *2024-10-04* 音質が自分とマッチしているので愛用してます。 今は無いのですがμRaから愛用してますw こもったのが嫌いな方はEQ設定にアルゴリズムっていうところがあるのでそこをCyber Fortからdecibelに設定変更してみてください。 若干音質がハッキリしました。 ### 5/5 — Perfect ! *2024-08-07* This app is well worth the money ! Every song is like being in the studio ! Clean and crisp with no distortion! Tons of features to craft your sound that way you want ! The perfect companion for Bose QuietComfort 35 II Wireless Bluetooth Headphones ! Love it ! ### 1/5 — App is too expensive! *2024-06-06* You don’t care about bad reviews, your app is too expensive and should only be a one time charge. And you need to make it so a person can add their own backgrounds. ### 5/5 — カラオケ機能が最強‼️ *2023-11-12* 今迄色々なアプリを使用しましたが ボーカルがここまで綺麗に消える アプリはこれが初めてです。 圧巻です。 たまに歌い始めの部分で声が一瞬聞こえますが 次のフレーズを歌う前にボーカルの声が綺麗に 消えます。 これは新たな音楽の楽しみになりました。 有難うございました。 ### 1/5 — Zero star review *2023-10-29, version 2.3.7* What a joke ! A free version plays only the part of the song and automatically skip to the next track . If you want to turn it off you will have to pay subscription!!! ## Frequently asked questions about SoundHi +EQ30 HD Amp & Player ### What does SoundHi do? SoundHi is a high-quality audio player and amplifier that enhances your listening experience. It features a powerful sound engine, AI-driven instrument and vocal volume adjustments, and support for high-resolution audio files. You can customize sound with extensive equalizer options and enjoy features like gapless playback. ### What are the key features of SoundHi? Key features include a high-performance sound engine with over 64,000 frequency bands, AI-powered volume balancing for individual instruments and vocals, playback of high-resolution audio sources up to 768kHz/32bit, and a graphic equalizer with up to 30 bands. It also offers audio separation into stems and a wide variety of supported audio file formats. ### How much does SoundHi cost? The app is free to download and use with in-app purchases available for premium features. Subscriptions offer unlimited access to the premium version, which unlocks advanced functionalities like higher resolution digital output, more equalizer bands, and additional audio separation stems. ### What devices is SoundHi compatible with? SoundHi is compatible with iOS devices. Specific advanced features like Audio Separator require iOS 12 or later, an A10 or higher CPU, and at least 3 GB of memory. The app supports playback through speakers, headphones, Bluetooth, AirPlay, and Lightning connections. ### What are some common use cases for SoundHi? Common use cases include enjoying the best possible sound quality from your audio equipment, remixing or creating karaoke tracks by isolating vocals, practicing musical instruments by adjusting their individual volumes, and experiencing high-resolution audio files with unparalleled clarity and detail. ## Version history (last 5 releases) ### 2.5.12 — 2026-06-24 ■ Latest update 1. iOS support (1) iOS 26.5 Operation confirmed (2) StoreKit 2 compatibility adjustments 2. Other enhancements ■ At the time of the first start-up, alert of "“SoundHi” Would like to access Apple Music And Your Media Library" is displayed. At that time, “OK” should be selected for using a song in the Music Library. This player uses to playback musics in the Music Library (iTunes Library). This library is the data in the media library. In order to use the songs in the Music Library, this question should have been set to "OK". ※"Don't Allow" was selected, it can not display all the songs in the Music Library. ■　Resetting Method Go to the Apple Settings app, Scroll down and Tap the SoundHi, Enable "Media & Apple Music" or "Media Library" toggle. *This item name depends on the iOS version. ### 2.5.11 — 2026-03-27 ■ Latest update 1. Adjustment of Audio Separator (sound source separation) function (1) Enjoy a new era of music playback with the Audio separator (sound source separation) function that utilizes AI technology. With this separator function, the sound source (song) can be divided into vocals, drums, bass, and other instruments, and the volume balance of each can be adjusted to your liking. (1-a) 4 Stems (Vocal/Drums/Bass/Others) (1-b) 2 Stems (Vocal/Others) (1-c) Calculates on device, no internet connection required. (1-d) Works like real time. (1-e) It also supports input and output of various sampling frequencies including high-resolution sound sources. (1-f) Enhanced preset functions (preset selection, unlimited additional of user-created presets, rename, lock/unlock, delete, 9 types of system presets (4 Stems + 2 Stems)) (1-g) Example of use: Remix/Karaoke/Practicing playing parts, etc. (1-h) We've added the ability to download and incorporate optional Pro datasets from our server. Pro datasets significantly enhance the accuracy and quality of sound source separation. (2) The resources used by Separator AI have been made more efficient. 2. iOS support (1) iOS 26.4 Operation confirmed (2) StoreKit 2 compatible 3. Other enhancements ■ At the time of the first start-up, alert of "“SoundHi” Would like to access Apple Music And Your Media Library" is displayed. At that time, “OK” should be selected for using a song in the Music Library. This player uses to playback musics in the Music Library (iTunes Library). This library is the data in the media library. In order to use the songs in the Music Library, this question should have been set to "OK". ※"Don't Allow" was selected, it can not display all the songs in the Music Library. ■　Resetting Method Go to the Apple Settings app, Scroll down and Tap the SoundHi, Enable "Media & Apple Music" or "Media Library" toggle. *This item name depends on the iOS version. ### 2.5.10 — 2025-10-30 ■ Latest update 1. iOS support (1) iOS 26/18.7 Operation confirmed (2) Added iPhone17, 17 Pro, 17 Pro Max, Air as a supported additional model 2. Other enhancements ■ At the time of the first start-up, alert of "“SoundHi” Would like to access Apple Music And Your Media Library" is displayed. At that time, “OK” should be selected for using a song in the Music Library. This player uses to playback musics in the Music Library (iTunes Library). This library is the data in the media library. In order to use the songs in the Music Library, this question should have been set to "OK". ※"Don't Allow" was selected, it can not display all the songs in the Music Library. ■　Resetting Method Go to the Apple Settings app, Scroll down and Tap the SoundHi, Enable "Media & Apple Music" or "Media Library" toggle. *This item name depends on the iOS version. ### 2.5.9 — 2025-07-28 ■ Latest update 1. iOS support (1) iOS 18.5 Operation confirmed 2. Other enhancements ■ At the time of the first start-up, alert of "“SoundHi” Would like to access Apple Music And Your Media Library" is displayed. At that time, “OK” should be selected for using a song in the Music Library. This player uses to playback musics in the Music Library (iTunes Library). This library is the data in the media library. In order to use the songs in the Music Library, this question should have been set to "OK". ※"Don't Allow" was selected, it can not display all the songs in the Music Library. ■　Resetting Method Go to the Apple Settings app, Scroll down and Tap the SoundHi, Enable "Media & Apple Music" or "Media Library" toggle. *This item name depends on the iOS version. ### 2.5.8 — 2025-04-27 ■ Latest update 1. Adjustment of "iDevice As Speaker" function. (1) This app can play the same sound source (song) simultaneously on multiple i-devices, using other i-devices (iPhone, iPad) as additional speakers. 2. iOS support (1) iOS 18.4.1 Operation confirmed 3. Other enhancements ■ At the time of the first start-up, alert of "“SoundHi” Would like to access Apple Music And Your Media Library" is displayed. At that time, “OK” should be selected for using a song in the Music Library. This player uses to playback musics in the Music Library (iTunes Library). This library is the data in the media library. In order to use the songs in the Music Library, this question should have been set to "OK". ※"Don't Allow" was selected, it can not display all the songs in the Music Library. ■　Resetting Method Go to the Apple Settings app, Scroll down and Tap the SoundHi, Enable "Media & Apple Music" or "Media Library" toggle. *This item name depends on the iOS version. ## Apps similar to SoundHi +EQ30 HD Amp & Player | App | Rating | Price | Category | | --- | --- | --- | --- | | [KaiserTone Audio Player +HiRes](https://appshunter.io/ios/app/kaisertone-audio-player-plus-hires/id725299207) | 4.5 (213) | $9.99 | Music | | [Equalizer+ HD music player](https://appshunter.io/ios/app/equalizer-plus-hd-music-player/id777191669) | 3.8 (9,346) | Free | Music | | [Flacbox: Hi-Res Music Player](https://appshunter.io/ios/app/flacbox-hi-res-music-player/id1097564256) | 4.6 (8,428) | Free | Music | | [Mp3 Converter & Audio Editor](https://appshunter.io/ios/app/mp3-converter-and-audio-editor/id1564486884) | 4.7 (1,627) | Free | Music | | [Volume Bass Booster-Equalizer+](https://appshunter.io/ios/app/volume-bass-booster-equalizer-plus/id1559849038) | 4.5 (704) | Free | Music | | [Evermusic: Cloud Music Player](https://appshunter.io/ios/app/evermusic-cloud-music-player/id885367198) | 4.6 (18,845) | Free | Music | ## More apps by CyberFort LLC - [KaiserTone Audio Player +HiRes](https://appshunter.io/ios/app/kaisertone-audio-player-plus-hires/id725299207) - [KaiserTone Medley -HiRes Audio](https://appshunter.io/ios/app/kaisertone-medley-hires-audio/id1214182757) - [MyuRa HiRes Audio Player](https://appshunter.io/ios/app/myura-hires-audio-player/id1296166215) - [PracTone - Fine-tune Your Play](https://appshunter.io/ios/app/practone-fine-tune-your-play/id6476883088) All apps by CyberFort LLC: https://appshunter.io/developer/569899155 --- *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 2026-08-30.*