# MIDI Tools — Live AUv3 MIDI Effects/Toolbox > iOS AUv3 MIDI effects suite for music production and MIDI manipulation. (iPhone/iPad app by Victor Porof.) - Source: https://appshunter.io/ios/app/midi-tools/id1446209019 (this page in markdown: same URL + `.md`) - Developer: [Victor Porof](https://appshunter.io/developer/1446209018) - Category: Music, Utilities - Price: $4.99 - Rating: 4.70/5 from 22 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 11 MB - Languages: American English - Released: 2019-01-21 - Data updated: 2026-07-04 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/midi-tools/id1446209019/reviews.md ## What is MIDI Tools? MIDI Tools is a suite of AUv3 MIDI audio units for iOS that lets you manipulate the MIDI messages inside your DAW’s effects chain, creating complex or otherwise impossible MIDI routings or effects. The app contains 8 MIDI audio units in a single package, which can be loaded in compatible hosts (BeatMaker 3, Cubasis 2, AUM, ApeMatrix etc.). Make sure your host is capable of loading, transmitting to, and receiving MIDI from audio unit MIDI effects. They’re intended to augment existing MIDI processing capabilities, or in scenarios where a host doesn’t provide the required functionality out of the box. 1) MIDI Curve: Alter velocity or aftertouch values (0-127) in a controlled or random manner. 2) MIDI Key Zone: Transpose and restrict the playable key range. Perform velocity fades across various pitch ranges. Generate polyphonic chord fade effects. 3) MIDI Monitor: Monitor MIDI events in an effects chain, with detailed reports. 4) MIDI De-Ghost: Tempo synced trigger block, useful for hardware pad controllers that double-trigger, or removing ghost notes. It can also be used creatively to generate polyrhythms and gate-shifting effects. 5) MIDI Route: External MIDI routing capabilities. Route MIDI to external hardware, loopback to other tracks or banks. Record MIDI audio units generator output in DAWs which lack the ability to perform complex in-app MIDI routing. 6) MIDI Bus: Internal MIDI busing capabilities, designed for DAWs which lack the ability to perform complex in-app MIDI routing. 7) MIDI Latch: Enable latching and sustain capabilities, in any DAW that supports MIDI audio units. 8) MIDI Clone & Filter: Clone and filter incoming MIDI across different channels, in any DAW that supports MIDI audio units. ## Key features - MIDI message manipulation within DAW effects chains - 8 AUv3 MIDI audio units - Velocity and aftertouch alteration - Key transposition and range restriction - MIDI event monitoring and reporting - Tempo-synced trigger blocking - External and internal MIDI routing ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/midi-tools/id1446209019/reviews.md ### 4/5 — Great midi tools! *2023-06-14, version 1.2* A must have for midi processing ### 3/5 — Great tools but bug in latch plugin *2022-12-01, version 1.2* These are very helpful tools, but there is a bug in the latch plugin: When in latched state, any additional NOTE ON gets through. This makes it impossible to latch notes on a poly synth: I press a key and only a NOTE ON is sent (latched state). I press the key again to silence the note, and a NOTE ON / OFF combination is sent. Leaving the polysynth still with one active NOTE ON. ### 2/5 — Can't make silent note via midi *2022-11-27, version 1.2* It can do many things, but can't make discard low velocities to make "silent key" in piano software with no native support. It would be great in the velocity module to have an option: "Don't send velocities below x" for having a custom silent key option for piano AUs. ### 5/5 — AUM User or Guitar to MIDI - you Absolutely NEED This *2021-10-09* This suite of MIDI tools is nothing less than AMAZING. Whether it’s using the monitor to track /trace MIDI messages, or using the key zones to route upper and lower keyboard keys to different synths ~ you’ll find yourself leveraging these utilities over and over again. They work GREAT in AUM and make the fine tuning and finesse work easy. Now hear this - if you’re a Guitar to MIDI user, you’ll LOVE the Curve utility. It’ll help eliminate unwanted string bumps even out your MIDI signal. Overall….I can’t say enough about this set of utilities. Great job!! ### 5/5 — Great for infinite looping on Beat maker 3 *2021-07-16, version 1.2* Bought this to enable continuous looping on the pads in Beatmaker. Really easy to implement. Just add a midi FX instance of latch to each pad (not the bank) you want to loop and set loop setting in the sample page to forward or alternate and you are good to go. Great app! ### 5/5 — Very useful plugin! A must have for sampled instruments. *2020-11-17* This is one of those plugins you didn’t know you needed ;) I mainly got it for MIDI Curve, and it’s simply perfect. Exactly what I wanted. I use it in NanoStudio as a MIDI FX. The reason I need it is, sampled instruments sound differently at different velocities because they have multiple layers. In the studio where they create the samples, they record the instrument with a mic and they create multiple layers. First they play all notes of the original instrument at the quietest then they hit the keys harder to record the next layer etc. Good quality sampled instruments can have many layers, and when you play them, the harder you play, it seamlessly jumps to the next layer. So when you hit harder on the keyboard it doesn’t just get louder, it also jumps into the next layer where the actual sound is different. But sometimes you just don’t want it to go into certain layers. This piano sample app I got for example, when you play softly it sounds mellow, but if you press harder it sounds differently - harsh and bright. On a real piano with weighted keys you can learn to play just the way you want it to sound, but midi controllers with standard keybed have a different sensitivity so you can get those unwanted sounds into the track accidentally. If I’m making a more mellow track, I just don’t want any of those harsh bright sounds at all. Also electric pianos have this, and it’s even more exaggerated with them. Because louder sounds are meant to be distorted on EP’s. Which is awesome and I like that. Except sometimes I don’t. So how do I tell my EP to play as loud as possible but just don’t go into that distorted range no matter how hard I strike the keys? Well there is no setting for that. The best you can do is change the curve inside the EP or piano app, but that affects playability, and still there’s no fixed hard limits that you can impose. So in this MIDI Curve plugin you can set the limits. Super easy too. Just hit the keys hard on whatever app you’re using and keep turning down that threshold till it just doesn’t go into unwanted layer. Takes just a few seconds to do this because UI is clean and straightforward. And you can set the lower threshold too, so it will never go in the very quiet layer. It’s not going to ignore the very light presses, just interpret them as the new minimum that you set. There are other features in this plugin, but I mainly use it for setting upper and lower thresholds. Easy and quick! It’s like a missing feature that should come with every sampled instrument. ### 1/5 — BUGGED in NanoStudio 2 *2020-10-05* Route midi fx crashes NanoStudio 2. I was trying to record my midi fix scaled bud to midi so I purchased this app but as soon as i load this under ScaleBud in midi fx it messes up the obsidian sound then crashes **Developer response:** Unfortunately this is an issue with NanoStudio 2. Please contact its developer for support. ### 5/5 — Solves the Beatmaker not recording midi au fx issue *2020-03-17* I got this specifically to record midi au fx in beatmaker since, as of this review, it won’t do it natively. The midi route effect solves this issue and it’s so simple and quick. THANK YOU ### 5/5 — It works *2020-02-20, version 1.2* This is a really good addition for the toolset available on the iOS platform. It provides functionality not normally available in some of the D.A.W's and it also connects to external midi channels much better than merely to a midi port virtual or otherwise. Well done for thinking outside of the box. Thank you for making it free. ### 5/5 — Ok awesome *2019-01-24* This has much potential hope it keeps updated but we need nano 2 support **Developer response:** NanoStudio 2 is now updated to support this suite of MIDI Tools! Thank you for your patience. ## Frequently asked questions about MIDI Tools ### What is MIDI Tools? MIDI Tools is a collection of 8 AUv3 MIDI audio units for iOS designed to manipulate MIDI messages within your Digital Audio Workstation's (DAW) effects chain. It allows for complex MIDI routings and effects that might not be natively supported by your host application. ### What devices does MIDI Tools support? MIDI Tools is exclusively designed for iPads. It requires a compatible host application that can load, transmit to, and receive MIDI from audio unit MIDI effects. ### How much does MIDI Tools cost? MIDI Tools is a paid application, available for $4.99. There are no in-app purchases or subscription fees associated with this application. ### Does MIDI Tools have ads? No, MIDI Tools is completely ad-free. Users can enjoy the full functionality of the application without any interruptions from advertisements. ### What are the key features of MIDI Tools? Key features include MIDI Curve for altering velocity, MIDI Key Zone for transposing and restricting keys, MIDI Monitor for observing MIDI events, MIDI De-Ghost for tempo-synced triggers, and MIDI Route for external routing. It also offers MIDI Bus for internal routing, MIDI Latch for sustain, and MIDI Clone & Filter for channel manipulation. ### How often is MIDI Tools updated? MIDI Tools was last updated on January 29, 2019, to version 1.2. It was initially released on January 21, 2019. Users can check for future updates through the App Store. ### What is the age rating for MIDI Tools? MIDI Tools has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions. ### What DAWs are compatible with MIDI Tools? MIDI Tools is designed to work with compatible hosts such as BeatMaker 3, Cubasis 2, AUM, and ApeMatrix. Ensure your chosen DAW supports loading and managing AUv3 MIDI effects. ## Version history (last 3 releases) ### 1.2 — 2019-01-29 - Visual feedback for notes, velocity and aftertouch in the Curve and Key Zone plugins - More control over sustain for the Latch plugin - Optimised MIDI engine for even higher performance and lower latency ### 1.1 — 2019-01-24 - Fix rare startup crash in the Route plugin - Disable irrelevant knobs when "fixed output" is active in the Curve plugin - Prevent certain CC messages from overflowing in the Monitor plugin - Add a pause button in the Monitor plugin - Specify the output destination in the info message in the Route plugin - Reorder controls in a way that makes more intuitive sense in the Zone plugin ### 1.0 — 2019-01-21 No release notes. ## Apps similar to MIDI Tools | App | Rating | Price | Category | | --- | --- | --- | --- | | [Rozeta Sequencer Suite](https://appshunter.io/ios/app/rozeta-sequencer-suite/id1292546479) | 4.8 (149) | $9.99 | Music | | [NuRack Auv3 FX Processor](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960) | 4.7 (42) | $12.99 | Music | | [StepPolyArp](https://appshunter.io/ios/app/steppolyarp/id1361313588) | 4.8 (47) | $19.99 | Music | | [LFOH!](https://appshunter.io/ios/app/lfoh/id1609270466) | 4.8 (10) | $3.99 | Music | ## More apps by Victor Porof - [Atom \| Piano Roll 2](https://appshunter.io/ios/app/atom-piano-roll-2/id1536259776) All apps by Victor Porof: https://appshunter.io/developer/1446209018 --- *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 2026-07-04.*