Comparison

mLFO vs Retrocord

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

mLFO

This app provides 16 programmable MIDI LFOs with extensive features for music production. It offers multiple parameters per LFO, independent output, and a wide rate range. It can be used as a standalone app or as an AUv3 plugin within compatible host applications.

Highlights
  • 16 programmable MIDI LFOs
  • Multiple parameters per LFO
  • Independent output and MIDI channel
  • Wide rate range
  • Custom shape creation (free and ADSR)
  • 4 trigger modes including random retrigger
Features
Read full description

*** Note *** Although mLFO can run as a stand-alone app, the recommended way to use it is as an AUv3 plugin from inside a suitable AU Host app, such as AUM, AudioBus, Cubasis etc. mLFO AUv3 is a set of 16 programmable MIDI LFOs with a extensive set of features: - Multiple parameters per LFO, including variability. - Independent output and MIDI channel per LFO. - Wide rate range, from 1/128 to 130442 beats. - 9 factory and 16 user shapes. - Custom shapes: free and ADSR. - 4 trigger modes, including random retrigger (every incoming note triggers a random LFO). - MIDI Thru. mLFO uses parts of the following copyrighted material, the use of which is hereby acknowledged. LICENCES AudioKit The MIT License (MIT) Copyright (c) 2016 Aurelius Prochazka Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

About

Retrocord

Features
Read full description

Retrocord is a retroactive multitrack audio recorder. It works like a tape that's always recording from your selected input, so when you play something worth keeping, you can save the last few minutes — after the fact. How it works Choose your audio input and a buffer length. Retrocord records silently in the background. When you want to keep what you just played, tap a duration to capture. The audio lands in your library as a recording you can play back, edit, organize, and export. Multitrack support Retrocord records every channel your audio input exposes, each as its own track. Connect a class-compliant multichannel USB audio interface — such as the Focusrite Scarlett series or similar — and capture individual inputs as separate stems. Mute and solo tracks during playback, then export them to your DAW to mix and arrange later. Edit before you export Retrocord lets you shape a capture without leaving the app: - Trim — set start and end points against a recording to keep only the part that matters - Split — cut a capture in two at the playhead to create separate recordings - Gain — adjust level in 3 dB steps, up to ±24 dB Your library, on every device Recordings live in an organized library — sessions hold captures, captures hold tracks — with waveforms, names, and durations at a glance. Your library syncs privately across your iPhone, iPad, and Mac through your own iCloud account. Lossless, and smaller Captures are stored as Apple Lossless (ALAC) — full 24-bit, 48 kHz quality at roughly half the size of uncompressed WAV. When it's time to move audio out, export individual tracks or a flattened mix as ALAC or 24-bit WAV, with your trim and gain applied. Use cases - Capturing jams and improvisations without arming a DAW - Recording stems from multichannel audio interfaces - Field recording, where the moment you want has already passed by the time you'd hit record - Interviews and spoken word, where restarting a conversation to get a clean take isn't an option - Practice sessions, rehearsals, and songwriting where good ideas surface unpredictably Details - Works with any class-compliant USB audio interface - Also supports the built-in microphone on iPhone and iPad - Stereo pairing toggle for interleaved L/R channels - Per-track mute and solo during playback - Non-destructive trim, split, and gain - Apple Lossless (ALAC) storage; export to ALAC or 24-bit/48 kHz WAV - Private iCloud sync across your devices, through your own iCloud account - No third-party account, no analytics — your recordings are yours

Screenshots

mLFO4 screens
Retrocord4 screens

Verdict

The call

The clearest difference is price: mLFO at $5.99 against Retrocord's $19.99. mLFO also leads on iOS requirement (15.6 vs 18.0). Retrocord's advantage is update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

mLFO costs $5.99 and Retrocord $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

mLFO ships an update every 2 months, Retrocord every 3 weeks. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level
mLFO versus Retrocord: the parameters behind the verdict, then further details
ParametermLFORetrocord
Price$5.99 — better$19.99
Rating4.5 (20 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings20 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.0
Further details — not scored
Size4 MB5 MB
Age rating4+4+
DeveloperAxart Labs OURocamr Labs, LLC

In-app purchases

None

mLFO

No in-app purchases

None

Retrocord

No in-app purchases

Questions

Is mLFO free?
mLFO costs $5.99, with no in-app purchases.
Is Retrocord free?
Retrocord costs $19.99, with no in-app purchases.
Do mLFO or Retrocord have ads?
Neither mLFO nor Retrocord shows ads.
Which is updated more often, mLFO or Retrocord?
mLFO ships an update every 2 months, and Retrocord every 3 weeks. Most recently, mLFO was updated on October 24, 2026 and Retrocord on October 17, 2026.

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