# Flux Mini — AUv3 Modulation Envelope > AUv3 audio effect plugin for dynamic sound shaping with customizable envelopes. (iPhone/iPad app by Caelum Audio.) - Source: https://appshunter.io/ios/app/flux-mini/id1548927370 (this page in markdown: same URL + `.md`) - Developer: [Caelum Audio](https://appshunter.io/developer/1463219587) - Category: Music - Price: Free - Rating: 4.70/5 from 40 App Store ratings · 11 written reviews indexed - Age rating: 4+ - Requires: iOS 9.3 · 18 MB - Released: 2021-02-05 - Data updated: 2026-08-14 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/flux-mini/id1548927370/reviews.md ## What is Flux Mini? Flux Mini is an AUv3 audio effect that adds life, character and dynamism to your tracks. The customisable graph creates a shape which affects either the amplitude, low-pass filter or high-pass filter. You can emphasize the frequency modulation with the resonance knob too! New: route MIDI to the plugin to trigger the envelope. MIDI note-ons can either retrigger the envelope or trigger envelope one-shots. From simple side-chains to manic modulations, sculpt some life into your sounds - flux it up and have some fluxing fun! Pre-loaded with 20 presets to get you going, it won’t be long before you’ve built a plethora of shapes to accentuate your fantastic music. As it is an AUv3 plugin, it works within iOS and iPadOS hosts such as Garageband. ## Key features - Customizable graph for sound shaping - Amplitude, LPF, and HPF modulation - Resonance control for frequency modulation - MIDI triggering for envelopes - 20 pre-loaded presets - Works with AUv3 hosts like Garageband ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/flux-mini/id1548927370/reviews.md ### 4/5 — Great plugin, just needs some crash fixes. *2024-09-30* Great app with so much control, and a nice, easy, visual interface. The pros completely outweigh the cons here, but there are a few situations where this app will crash. I only use GarageBand so it may not be a problem for others. 1- When “merging” a track with Flux mini, it will crash. 2- When “duplicating” a track with the flux mini, it will crash. 3- When removing Flux mini from a track, it will crash. I tend to run multiple tracks with the flux mini, so when the app crashes, it just stops working everywhere. To fix, I must close GarageBand , re open, and it usually works after that. The cons are more apparent since I basically use it on every project, and usually on many tracks at once. It’s a bit of an inconvenience to restart the app when doing very common trivial tasks that cannot be avoided in my workflow. ### 1/5 — New update killed this app. *2024-07-05* MIDI capabilities do nothing for me Au3 did everything. This made the app lose total compatibility for GarageBand iOS… Make 2 versions one for Au3 and I’ll give 5 star reviews for both. ### 5/5 — Why only 32 reviews. *2022-03-14* This app seriously rules…I don’t often feel a need to write a review but I just played around with this app for over an hour and feel like I’ve just scrapped the surface of its capabilities. There are far too many filter apps - this one is by far one of the best. ### 5/5 — NICE APP *2022-02-04* I love this plug in I’ve had to refresh it to make it work correctly sometimes but it definitely can add Suace to your sound 5 stars for a free Auv3. I plan to buy some of there others apps soon l like to support the Developers who give us tools to use and earn are trust that’s good business. ### 4/5 — This cray *2021-04-22* This cray ### 5/5 — Thanks for the modularity! *2021-03-17* Jakob Haq of HaqAttaq channel on YouTube did a great video to hear the abilities of this cool software. ### 5/5 — Fun and sounds great *2021-02-28* I’ve been wanting an iOS plugin that does something similar to what XFR’s LFO Tool VST does on my PC, and this little mother fluxer is a good start. It’s super fun to use on all kinds of synth and drum apps, and it’s free! Thanks to the dev(s), and I hope you consider adding some advanced features in the future, I would be very happy to do an in-app purchase for that! ### 5/5 — It just works. *2021-02-09* While the general principle behind this effect isn’t particularly novel - it just sounds *great* and is really good at adding movement and life on most anything it’s used for. Thanks Caelum Audio! ### 5/5 — Flux Mini *2021-02-07* From filtered rhythmic patterns to complex dynamic shaping ,"Flux Mini" makes it easy. Caelum Audio have done wonders with this one. Enjoy Gravitas ### 5/5 — Awesome *2021-02-06* This is the bomb diggity. Currently it’s breathing new life into an old Korg of mine. Very dynamic and fun. Highly recommended. ## Frequently asked questions about Flux Mini ### What is Flux Mini? Flux Mini is a free AUv3 audio effect plugin for iOS and iPadOS that adds dynamic character and modulation to your music tracks. It allows you to shape amplitude, low-pass filters, or high-pass filters using a customizable graph. ### Does Flux Mini have ads? No, Flux Mini does not contain advertisements. It is a completely free application. ### What devices does Flux Mini support? Flux Mini is supported on iPhone, iPad, and iPod touch devices. It requires iOS or iPadOS. ### How often is Flux Mini updated? Flux Mini was last updated on February 19, 2021, with version 1.1.2. The release date was February 5, 2021. ### Can Flux Mini be used offline? As an AUv3 plugin, Flux Mini functions within compatible audio hosts like Garageband, which can be used offline. The plugin itself does not require an internet connection to operate once installed. ### What is the age rating for Flux Mini? Flux Mini has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content. ### How does Flux Mini compare to other modulation plugins? Flux Mini offers a unique customizable graph for envelope generation and MIDI triggering capabilities, making it a versatile tool for adding dynamic movement to sounds within AUv3-compatible hosts. ### What are the benefits of using Flux Mini's resonance knob? The resonance knob in Flux Mini allows you to emphasize the frequency modulation created by the envelope. This can add a distinct character and intensity to the modulated sound, especially when working with filters. ## Version history (last 3 releases) ### 1.1.2 — 2021-02-19 WARNING: version 1.1.2 adds MIDI input so your host may not recognise it as the same AUv3. Please render any important audio that uses Flux Mini before updating. New Feature: MIDI triggering. New Improvement: Sync time ignores small inconsistencies in the hosts reported sample position, providing smoother modulation. Bug Fix: Fixed an issue which could cause a click on load. Bug Fix: Removed clicks when changing sync value. Bug Fix: Fixed an issue where the plugin may not load graph settings from save file correctly. ### 1.0.1 — 2021-02-08 Bug fix: Fixed an issue where settings wouldn't save and load correctly if a preset other than "Default" was selected. ### 1.0 — 2021-02-05 No release notes. ## Apps similar to Flux Mini | App | Rating | Price | Category | | --- | --- | --- | --- | | [AI Stem Splitter MicSwap Remix](https://appshunter.io/ios/app/ai-stem-splitter-micswap-remix/id6744467238) | 4.5 (173) | Free | Music | | [Poly 2](https://appshunter.io/ios/app/poly-2/id1477029326) | 4.8 (624) | Free | Music | | [MX-Mix](https://appshunter.io/ios/app/mx-mix/id1612663928) | 2.6 (20) | Free | Music | | [Audiobus: Mixer for Music Apps](https://appshunter.io/ios/app/audiobus-mixer-for-music-apps/id1129130361) | 4.5 (594) | Free | Music | | [Piano Pro & Drum Music Studio](https://appshunter.io/ios/app/piano-pro-and-drum-music-studio/id1563206106) | 4.6 (1,310) | Free | Music | | [Soundfont Pro: Synth Studio](https://appshunter.io/ios/app/soundfont-pro-synth-studio/id1631188357) | 4.4 (755) | Free | Music | ## More apps by Caelum Audio - [One Loop](https://appshunter.io/ios/app/one-loop/id1463219588) - [Tape Cassette](https://appshunter.io/ios/app/tape-cassette/id1488648013) - [Tape Cassette 2](https://appshunter.io/ios/app/tape-cassette-2/id1507434173) - [Tape Pro](https://appshunter.io/ios/app/tape-pro/id1527986817) - [Schlap AUv3](https://appshunter.io/ios/app/schlap-auv3/id1544325236) - [Smoov AUv3](https://appshunter.io/ios/app/smoov-auv3/id1545474672) All apps by Caelum Audio: https://appshunter.io/developer/1463219587 ## Related topics [auv3 plugin](https://appshunter.io/ios/topics/auv3-plugin) · [wireless audio auv3](https://appshunter.io/ios/topics/wireless-audio-auv3) · [lrc7](https://appshunter.io/ios/topics/lrc7) --- *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 2026-08-14.*