# Stria > Multilevel interactive sound synthesizer with FM and additive synthesis. (iPhone/iPad app by apeSoft.) - Source: https://appshunter.io/ios/app/stria/id625740515 (this page in markdown: same URL + `.md`) - Developer: [apeSoft](https://appshunter.io/developer/464660782) - Category: Music, Education - Price: $9.99 - Rating: 5.00/5 from 35 App Store ratings · 45 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 19 MB - Languages: American English - Released: 2013-05-16 - Data updated: 2026-08-31 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/stria/id625740515/reviews.md ## What is Stria? Stria is rated as a Killer App by Apps4iDevices. Multilevel Interactive Sound Synthesizer Idea and Csound-Orchestra by Eugenio Giordani “Stria” is the title of a very important composition by John Chowning and I would like to say that this computer music piece represents the manifest of Frequency Modulation technique applied to audio synthesis, invented by Mr. Chowning himself. + Audiobus and Inter-App Audio support + Up to 240 Frequency Modulation Oscillators or simple Wavetable Additive + Five Spectral Pitch Grid Generators (Geometric, Harmonic, Fibonacci, Scalar, Temperated) + MIDI Pad With Scale Grid + Effects chain: Doppler, Chopper, Glitch Gen, Sync Grain, Spectral Arpeggiator, FDN Reverb, Dynamic Compressor/Expander + Snapshots Presets Morphing Pad + Control Manager LFO for Parameters + Midibus, Virtual Midi and Network: 14 bit NRPN controllers + Capture Master Audio Output + File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy + Post Fx Chain: Doppler, Chopper, Out Of Range, Sync Granulator, Spectral Arpeggiator, Reverb FDN, Dynamisc Processor + Bluetooth A2DP High Quality + etc... ## Key features - Multilevel interactive sound synthesizer - Up to 240 FM or Wavetable Additive Oscillators - Five Spectral Pitch Grid Generators - MIDI Pad With Scale Grid - Extensive effects chain (Doppler, Glitch Gen, Reverb, etc.) - Snapshots Presets Morphing Pad - Control Manager LFO for Parameters ## Recent user reviews (10 of 45) All indexed reviews: https://appshunter.io/ios/app/stria/id625740515/reviews.md ### 5/5 — Perfect *2026-07-26* Wonderful. I play this live on stage with my iPad in my Liveset. Love it. ### 5/5 — Amazing *2025-08-08* Deep & Wonderful synth. I am impressed! ### 5/5 — So Good *2025-06-28* The range of sounds along with the ability to modulate endlessly makes this a fantastic playground of sound. If you love soundscapes, this is for you! It takes some time to learn but there is a fine tutorial from Gavinski. And it is ridiculously inexpensive for what you get. ### 5/5 — Unmatched granular performer even in 2025 *2025-06-26* My biggest regret in iOS music production, has been sleeping on Apesoft, Amazing Noises incredible offerings. They have always been next level. I personally believe that spectral/spatial audio is the future of entertainment, like when stereo was first introduced. Had I understood sooner, I could have been mastered these apps, here I am discovering decade old software that still outperforms the most expensive granular scrubbers. It's stupidly incredible ### 5/5 — Sempre tra le mie preferite *2025-04-01, version 3.2* Ho preso questa app quattro anni fa ed era in circolazione già da una decina di anni, rimane sempre tra le mie preferite, sconvolgente ciò che si riesce a tirane fuori. ### 5/5 — I NEED Moebius Lab back guys *2024-12-08* What happened to the best music studio host out here?!? ### 5/5 — Almost forgot how… *2023-02-28* … mindboggingly beautiful this marvelous piece of software can sound. Admittedly, it's been a while, but now I'm back! ### 5/5 — Fantastic *2020-03-23* This thing is also a work of art. It is a sound maker's dream tool. It's very cool that the designer gives such credit to John Chowning and Max Matthews (look them up if you are not familiar.) Hours and hours of very original sounds come out of this. Ps. I'm not affiliated with apeSoft in any way. Even if they wanted to pay me to write these reviews i would turn down the offer. ( not vst versions!) Edit: made a comparison to iPulsaret but i was thinking iDensity not Stria. 2 years later i am still impressed. ### 5/5 — Amazing! *2018-06-30* Apesoft is up there with Amazing noises and Kymetica to put out the best experimental and great sounding apps! Stria is but one example of the talent of this developer. ### 5/5 — Experimental Madness! *2017-05-01* Stria seems essential to me as someone who loves experimental music, avant-garde weirdness. Amazing way to play with process sound. Fans of apps like SoundScaper will love all of apesoft's apps in this series. It was also a bonus to look into where the word Stria came from in relation to electronic music. Have fun! ## Frequently asked questions about Stria ### What does the Stria app do? Stria is a multilevel interactive sound synthesizer that allows users to create complex audio textures and musical compositions. It leverages Frequency Modulation and Wavetable Additive synthesis techniques, offering a wide array of oscillators and sound manipulation tools. ### What are the key features of Stria? Key features include up to 240 Frequency Modulation or Wavetable Additive Oscillators, five Spectral Pitch Grid Generators, a MIDI Pad with Scale Grid, and an extensive effects chain with options like Doppler, Glitch Gen, and FDN Reverb. It also supports Snapshots Presets Morphing Pad and LFO control for parameters. ### How much does Stria cost? Based on the provided information, Stria is a paid application. There are no mentions of in-app purchases or subscription models, indicating a one-time purchase for the full functionality. ### What platforms is Stria compatible with? The app supports Audiobus and Inter-App Audio, suggesting compatibility with iOS devices that run these frameworks. It also mentions Bluetooth A2DP High Quality and various MIDI connection options, implying broad connectivity with other audio hardware and software. ### What are some common use cases for Stria? Stria is ideal for creating unique soundscapes, experimental electronic music, and intricate audio effects. Its advanced synthesis capabilities make it suitable for sound designers looking to craft novel timbres and musicians exploring advanced FM and additive synthesis techniques. ## Version history (last 5 releases) ### 3.3.3 — 2025-07-22 + macOS AUv3 UI improvement + macOS AUv3 AUParameter fixed + Fixed Samples Import files + Improved stability + Updated to the latest iOS SDK + Updated dependencies + Fixed various bugs ### 3.3.1 — 2025-07-15 + Fixed Samples Import files + Improved stability + Updated to the latest iOS SDK + Updated dependencies + Fixed various bugs ### 3.3 — 2025-07-12 + Improved stability + Updated to the latest iOS SDK + Updated dependencies + Fixed various bugs ### 3.2 — 2024-07-14 Maintenance Updates Latest iOS SDK Update Fixed an issue causing the app to crash when double tap two knobs together Compatibility with Apple Silicon Macs ### 3.1.4 — 2021-10-06 + Ready for iOS 15 + iPhone UI fixed ## Apps similar to Stria | App | Rating | Price | Category | | --- | --- | --- | --- | | [Silo - Granulator and Reverb](https://appshunter.io/ios/app/silo-granulator-and-reverb/id6444164740) | 4.8 (32) | $9.99 | Music | | [AltiSpace 2](https://appshunter.io/ios/app/altispace-2/id1580223509) | 4.7 (29) | $7.99 | Music | | [sinusedo](https://appshunter.io/ios/app/sinusedo/id6444181090) | 4.7 (7) | $3.99 | Music | | [Moebius Lab](https://appshunter.io/ios/app/moebius-lab/id1108915352) | 4.9 (50) | $9.99 | Music | | [Dedalus - Delay Audio Mangler](https://appshunter.io/ios/app/dedalus-delay-audio-mangler/id953953694) | 4.6 (41) | $5.99 | Music | | [BLEASS Granulizer](https://appshunter.io/ios/app/bleass-granulizer/id1540299083) | 4.9 (39) | $6.99 | Music | ## More apps by apeSoft - [iDensity](https://appshunter.io/ios/app/idensity/id464660779) - [iPulsaret](https://appshunter.io/ios/app/ipulsaret/id565880268) - [iVCS3](https://appshunter.io/ios/app/ivcs3/id665703927) - [Sparkle - Cross-Synthesis](https://appshunter.io/ios/app/sparkle-cross-synthesis/id818477094) - [SOLO Nr.19](https://appshunter.io/ios/app/solo-nr19/id884781236) All apps by apeSoft: https://appshunter.io/developer/464660782 ## Related topics [apesoft](https://appshunter.io/ios/topics/apesoft) --- *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 2026-08-31.*