# MIDI Mod > MIDI modulation source modules with extensive routing and control capabilities. (iPhone/iPad app by Steven Connelly.) - Source: https://appshunter.io/ios/app/midi-mod/id1465677026 (this page in markdown: same URL + `.md`) - Developer: [Steven Connelly](https://appshunter.io/developer/1049373664) - Category: Music, Music, Education - Price: $2.99 - Rating: 4.50/5 from 10 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 24 MB - Languages: English - Released: 2019-07-06 - Data updated: 2026-08-11 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/midi-mod/id1465677026/reviews.md ## What is MIDI Mod? MIDI Mod is a set of modules designed to be used as modulation sources that send MIDI to various destinations. In addition, the majority of MIDI Mod's own parameters can be modulated internally. For example, the output of ENV 3 could be used to control the rate of LFO 1. The output of LFO 1 could be used to control the playback velocity of the arpeggiator, and so on. MIDI Mod features a massive 32-slot mod matrix, which can be used for routing internally and externally to any number of things, including hardware devices, software, and other apps. The sheer number of possibilities can be daunting, but don't let that stop you. To make things less overwhelming, MIDI Mod comes preloaded with parameter mappings for more than 60 devices and apps, including some of the most popular devices on the market today. More are being added, and if a mapping doesn't exist for your device yet, fear not. It's very easy to create routings just by entering a CC number or via MIDI Learn. MIDI Learn even works with Sysex! TL;DR 4 LFOs - All the classic wave forms, plus 1 slot per LFO for a user-editable waveform - Key retrig and LFO delay - Slow and Fast modes, up to 40 Hz - Rate sync to BPM subdivisions - Sync any LFO to the rate of another - Each LFO can have up to 8 destinations 3 Envelope Generators - 2 ADSR with delay and hold - 1 4-stage with individual levels per stage, plus delay and hold - Loopable - Auto-triggered by BPM subdivisions or the rate of an LFO - Manual trigger buttons - Each envelope generator can have up to 8 destinations Arpeggiator - Stores up to 16 notes - Standard features, including Octave Up/Down, Note Repeat, Gate Length, Clock Subdivision, and several playback patterns - Velocity decay/fade feature - Chord memory with polyphonic playback - Create rhythmic patterns by turning on/off individual notes in latch mode - Auto Transpose Sequencer allows automatic transposition of the entire note sequence up to 16 steps. Think of it as a sequencer of a sequence - Arp note on and note off can be used as a modulation source (up to 8 destinations) - Note messages can be suppressed so that only modulation takes place 32-Slot Mod Matrix - Destinations can be internal or external (only limited by the amount of devices/software/apps you have) - Internal destinations include just about every knob and fader within MIDI Mod - Over 60 (and increasing) included device control mappings, making it easy to simply select your device, and the name of the parameter - Destinations can be MIDI CC, Sysex, or NRPN - MIDI Learn for destination select (CC and Sysex only) - Individual range controls for each mod slot (If the destination has a range of 0-63, you could set the min to 5, and max to 55, for example) - Destinations also include pitch bend, aftertouch, mod wheel, and even MIDI note - Every mod slot can have its output inverted (negative) - Mod sources include the 4 LFOs and 3 Envelopes, Arpeggiator note on/off, Aftertouch, Velocity, MIDI Note (keyboard tracking), Modwheel, Pitchbend, Expression, or any CC of your choice Other Features - Quick access on-screen keyboard for entering notes/playing devices - Configurable Max LFO Delay and Envelope Phase times, up to 40 seconds - Aftertouch delay, which filters out incoming aftertouch messages until the desired time after key press - Max MIDI messages per second (some devices are better at handling audio rates over MIDI than others) - MIDI clock send and receive (sync) - Analog sync out (sends out an audio pulse in sync with the current tempo) - Ableton Link for solid tempo sync with other Ableton Link devices - In app User Guide Some features of this app are made possible by the AudioKit framework Current list of devices and apps with defined parameter mappings: https://eokuwwy.blogspot.com/2019/05/device-parameter-mapping-list.html MIDI Mod is not affiliated with any hardware or software manufacturer. ## Key features - 32-slot mod matrix - 4 LFOs with user-editable waveforms - 3 Envelope Generators (ADSR, 4-stage) - Arpeggiator with chord memory - MIDI Learn for CC and Sysex - Over 60 preloaded device mappings - Internal and external modulation routing ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/midi-mod/id1465677026/reviews.md ### 2/5 — No AUv3 support *2026-06-21, version 1.5.2* Seems like it could be a good standalone app, but I was looking for an AUv3 host compatible LFO plugin (should have read description more carefully - just assumed since almost all MIDI apps are AUv3 these days). If you’re looking for an AUv3 LFO plugin, try mLFO. To the developer: might want to add “No AUv3 compatibility” to the app description. ### 5/5 — Lovely MIDI modulation source *2022-11-10, version 1.5.2* A nicely implemented means of outputting some pretty exciting MIDI modulation variations. It can take a second to parse the provided guide for some of the more in-depth functionality, but overall if you know how to program a simple LFO or EG and set up MIDI routing/destinations the app is a breeze - just click around! The arp’s fun to play around with as well. Excited to implement into my workflows! ### 1/5 — Made by the dev, for the dev. *2020-08-07, version 1.4.5* Nope. This app is a prime example of what happens when someone makes an app for their own personal use, and then as an afterthought, decides to sell it on the app store with zero user friendliness. If anyone is even looking at this, it's probably because you can't find a midi controller that can do exactly what you need, and you're desperate. Just search the store for "midi script". There's an app that lets you write custom code to create any imaginable midi controller. ### 3/5 — Different, not in a good way *2020-01-03, version 1.4.3* I can't get past the interface. The app needs a proper interface. I could not work with an interface like that. There are too many things to explain. Interfaces should be intuitive, easy to use, easy to make changes, easy to see the current set up, minimal number of taps to make a change. I should not have to watch scrolling text to know a value. Standard ways to bring up choices is a good idea so the user knows quickly how to make a change. This is especially true with technical apps. Someone messing with midi doesn't want to use an app with an interface that does things in a completely different way. It's just too confusing for nothing. ### 5/5 — Want More LFO’S? *2019-12-06, version 1.3.1* Then you absolutely must get this app. Have no idea what the other guy is taking about. User error I imagine. Interface is great. Dev listens to feedback. If I could give it 10 stars I would! ## Frequently asked questions about MIDI Mod ### What is MIDI Mod? MIDI Mod is a set of modules designed to generate and route MIDI modulation signals. It allows you to control various parameters internally or externally using LFOs, envelope generators, and an arpeggiator. ### How much does MIDI Mod cost? MIDI Mod is a paid app, priced at $2.99. There are no in-app purchases or subscriptions required. ### What devices does MIDI Mod support? MIDI Mod is compatible with iPhone, iPad, and iPod touch devices. ### How often is MIDI Mod updated? The latest version, 1.5.2, was released on October 3, 2021. Update frequency can vary, but the app has seen consistent development since its release in 2019. ### Can MIDI Mod be used offline? As a music production tool focused on MIDI routing and control, MIDI Mod is designed to function without an active internet connection. ### What are the main modulation sources in MIDI Mod? MIDI Mod features 4 LFOs with classic and user-editable waveforms, 3 Envelope Generators (2 ADSR, 1 4-stage), and an Arpeggiator. These can be used to control parameters within the app or external devices. ### Does MIDI Mod have ads? No, MIDI Mod does not contain advertisements. It is a paid application with no in-app purchases or ads. ### What is the age rating for MIDI Mod? MIDI Mod has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 5 releases) ### 1.5.2 — 2021-10-03 - iOS 14+ Ableton Link network compatibility fix - Visual feedback when attempting to perform invalid actions - Improved startup time: only process device specs if there have been changes or new ones added ### 1.5.1 — 2021-02-07 - Support for the latest Open MIDI RTC Schema version (0.1.1), which in turn allows mappings for the Roland Super JX with Vecoven mods - More accurate loading indicator on startup ### 1.5.0 — 2020-11-11 - New connections view allows you to configure all your app and hardware device connections in one place - Removed all MIDI device configuration settings from the main settings screen. Removed device setting from the Arp screen. These are now configured in the connections view. - Fixed incoming and outgoing MIDI clock sync - Incoming MIDI processing improvements - Support for receiving MIDI on all channels (omni) - MIDI thru support ### 1.4.6 — 2020-09-15 All LFO's and the arpeggiator now respond to incoming MIDI transport control messages (play, stop, continue). Now you can trigger/sync any number of LFO's with an external sequencer. You can also trigger the arpeggiator when it is in latch mode, effectively turning it into a sequencer that you can start, stop, and resume with another device that sends transport messages. Just press the "TP" button to enable transport control. Be sure to set the input device in the settings first. ### 1.4.5 — 2020-02-03 - Improved initial load time - Fixed bug that was preventing the removal of device output and clock assignments - MIDI learn parameters are now saved globally - Fixed issues with mod slots where MIDI CC's are the mod source ## Apps similar to MIDI Mod | App | Rating | Price | Category | | --- | --- | --- | --- | | [VADrumSM](https://appshunter.io/ios/app/vadrumsm/id1474193057) | 5.0 (5) | $9.99 | Music | | [BandDelay](https://appshunter.io/ios/app/banddelay/id1482011637) | 4.4 (11) | $3.99 | Music | | [Wireless Audio AUv3](https://appshunter.io/ios/app/wireless-audio-auv3/id1597851234) | 3.7 (7) | $4.99 | Music | | [midiDREAMs](https://appshunter.io/ios/app/mididreams/id1553799788) | 5.0 (6) | $9.99 | Music | ## More apps by Steven Connelly - [MvsM Hockey](https://appshunter.io/ios/app/mvsm-hockey/id1125783252) - [CV Mod](https://appshunter.io/ios/app/cv-mod/id1406207229) All apps by Steven Connelly: https://appshunter.io/developer/1049373664 --- *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 2026-08-11.*