midiLFOs vs Note to Be
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
midiLFOs
This app generates MIDI modulation data using four independent LFOs. It can control parameters in other music apps or external synthesizers, offering various waveform shapes and modulation possibilities.
- Four independent LFOs
- 7-bit MIDI CC message generation
- Multiple standard LFO shapes
- LFO rate and amplitude modulation
- AUv3 MIDI effect support
- MIDI clock and Ableton Link sync
- MIDI input mapping
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midiLFOs is a MIDI controller app and AUv3 MIDI effect that sends MIDI modulation control data to other music apps and external synthesizers. It has four independent LFOs that send 7 bit MIDI CC messages in repeating Low Frequency Oscillating patterns. The LFOs can be the various standard shapes (sine, saw, triangle, square, sample and hold) but can also modulate each others amplitude and rate to create even more interesting shapes. midiLFOs does not make music or sound by itself, it controls other MIDI capable synth apps and devices in your studio. You can use it to modulate the filter cutoff frequency of your favorite synth app, the pan position of the hi hats in a drum machine app, the feedback amount of a delay effect, or the pitch of an external hardware synthesizer. Or you can do all four at the same time. midiLFOs features: - Four independent LFOs that send 7-bit MIDI CCs - Easily configure CoreMIDI port, channel, CC# per LFO - Use in other apps as a MIDI Audio Unit Effect - Easily adjust shape, rate, offset, lag per LFO - Modulate the rate and amount of an LFO using other LFOs - Sync LFOs to MIDI clock or Ableton Link - Map trigger, LFO rate, and modulation amount values to incoming MIDI Designed to be easy to configure and use, midiLFOs gives you a quick to configure and easy to use MIDI LFO controller toy with extra features that also make it a useful pro music studio tool. AUv3 support requires an AU host app that supports MIDI effects, such as AudioBus 3, AUM, etc.
Note to Be
This app offers advanced MIDI quantization for iOS musicians. It allows precise control over note selection, octave flexibility, and MIDI CC integration for crafting harmonious compositions and dynamic live performances. Supports microtonal scales and multi-synth setups.
- Customizable note and octave selection
- MIDI CC to note conversion
- Multi-synth channel assignment
- Live performance toggles
- Microtonal scale support (Scala Library)
- MPE polyphonic playback
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Take full control of your MIDI experience with Note to Be—the powerful iOS app designed to transform how you interact with your music. Whether you're working with a MIDI keyboard, sequencer, or MIDI CC input, Note to Be ensures your notes are perfectly quantized to the nearest selected note, allowing you to craft precise, harmonious compositions with ease. Key Features: - Customizable Note Selection: Choose individual notes from any octave, or apply your selection across the full -1 to +8 octave range. - Octave Flexibility: Work within the entire octave spectrum, selecting and unselecting notes with a simple tap. - MIDI CC Integration: Use MIDI CC from hardware controllers or apps like ShiftBud to convert control changes into quantized notes. Easily create chord voicings and dynamic live performances. - Multi-Synth Support: Assign different MIDI channels to multiple synths, allowing each to respond to the quantized MIDI output independently. - Live Performance Enhancement: Engage the 'all notes' toggle to instantly apply note selections across all octaves or quickly select notes in a specific key and scale. - Microtonality: Select a microtonal scale from the Scala Library with +5000 microtonal scales, or import your own to the iCloud folder. Play the MPE supported synths polyphonically. With Note to Be, your music becomes a canvas, and every note is a brushstroke. Unlock new creative possibilities and refine your sound with the precision of MIDI quantization, right from your iOS device. Note to Be is a MIDI app and does not produce any sound on its own. You need a MIDI input source and an audio output destination in order to work with Note to Be. The AUv3 plugin requires an AUv3 host app such as AUM, Logic Pro for iPad, Loopy Pro, Cubasis, Nanostudio, apeMatrix, Audiobus etc.
Screenshots
Verdict
The clearest difference is update cadence: Note to Be at weekly against midiLFOs's every 3 months. midiLFOs's advantage is review sentiment (79% vs 50%) and ratings volume (21 vs 7). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
midiLFOs costs $4.99 and Note to Be $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for midiLFOs against 4.9 for Note to Be. Both are backed by a comparable volume of ratings — 21 and 7 respectively. Written reviews are what separate them: 79% of midiLFOs's written reviews are positive against 50% of Note to Be's.
midiLFOs ships an update every 3 months, Note to Be weekly. Both last shipped on October 7, 2026.
| Parameter | midiLFOs | Note to Be |
|---|---|---|
| Price | $4.99 | $4.99 |
| Rating | 4.9 (21 ratings) — better | 4.9 (7 ratings) |
| Positive reviews | 78.6% of reviews — better | 50.0% of reviews |
| Number of ratings | 21 — better | 7 |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.4 — better | 13.0 |
| Further details — not scored | ||
| Size | 3 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Arthur Kerns | Cem Olcay |
Customer experience
midiLFOs
Note to Be
In-app purchases
midiLFOs
No in-app purchases
Note to Be
No in-app purchases








