midiLFOs vs Ringotron
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.
Ringotron
This app offers advanced control over ring modulation effects for sound design and audio processing. Its multi-band design allows precise manipulation of the audio spectrum, with a special soft mode to reduce unwanted intermodulation. It can also function as a resonant filter that smoothly transitions into a ring modulator.
- Parallel ring modulator units
- Stereo separation control
- Ultra-narrow band resonance
- Ribbon controls for frequencies
- Modulation system for band centers
- Tempo syncing for oscillators
- Soft limiter and clipper
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Ringotron allows taming the strong transformational effects of traditional ring modulation, opening up a wider range of possibilities in sound design and audio FX. Its multi-band design enables fine control over which parts of the spectrum will be transformed by the effect. A special soft mode is available that borrows concepts from feedback modeling, which can be used to reduce intermodulation effects that are often a limiting factor in the more general applicability of ring modulators. In addition to the layers of control they provide, combination of these core features also allows the plugin to act as a stereo, multi-peak resonant filter that can also smoothly morph into a ring modulator. FEATURES: • 2 parallel ring modulator units (max. modulator frequency: 8 kHz) • Stereo separation can be added to band center, mod. frequency, mod. phase • Ultra-narrow bands can be used to create highly resonant sounds • 4 large ribbon controls for band center and modulator frequencies • Band center frequencies can be modulated by the built-in modulation system • Tempo syncing can be independently configured for each oscillator • Built-in soft limiter and clipper to protect against volume spikes IMPORTANT INFORMATION: The plugin comes with a zero-latency, non-brickwall soft limiter, and as such, its stopping power is limited. Make sure to always leave enough headroom or use an external brickwall limiter for total protection against powerful transients. Alternatively, a built-in soft clipper is also available. PLEASE NOTE: • AUv3-compatible host app is required • Suported sampling rates: 44.1, 48, 96 kHz
Screenshots
Verdict
The clearest difference is price: midiLFOs at $4.99 against Ringotron's $12.99. midiLFOs also leads on update cadence (every 3 months vs every 20 months) and iOS requirement (11.4 vs 14.0). Ringotron's advantage is review sentiment (100% vs 79%). On rating, ratings volume, 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 Ringotron $12.99 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 5.0 for Ringotron. Both are backed by a comparable volume of ratings — 21 and 15 respectively. Written reviews are what separate them: 79% of midiLFOs's written reviews are positive against 100% of Ringotron's.
midiLFOs ships an update every 3 months, Ringotron every 20 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.
| Parameter | midiLFOs | Ringotron |
|---|---|---|
| Price | $4.99 — better | $12.99 |
| Rating | 4.9 (21 ratings) | 5.0 (15 ratings) — better |
| Positive reviews | 78.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 21 — better | 15 |
| Update frequency | Every 3 months — better | Every 20 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.4 — better | 14.0 |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Arthur Kerns | quantovox |
Customer experience
midiLFOs
Ringotron
In-app purchases
midiLFOs
No in-app purchases
Ringotron
No in-app purchases









