Osculatrix vs SimpLoop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Osculatrix
This audio effect plugin offers modulated filters, delays, and saturation for creative sound design. It can transform audio from subtle coloration to complete destruction. Use it within your favorite music production apps.
- Modulated filters
- Delay effects
- Saturation
- AUv3 plugin
- Subtle coloration to destruction
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Osculatrix is a tremolo with ideas above its station. With modulated filters, delays, a bit of saturation. Like its predecessors, it is cryptic and opinionated, and it goes from subtle colouration to total destruction at the twist of a knob. Osculatrix is an AUv3 effect plugin. It does nothing on its own. Use it in GarageBand, AUM or your favourite audio application. Osculatrix does not want your money and it doesn't want your data. It is 100% free. No ads, no in-app purchases, no subscriptions, no surveillance, no nag screens.
SimpLoop
This audio effect plugin offers a straightforward approach to live looping, inspired by classic hardware pedals. It allows for simple one-button operation or advanced MIDI control for dynamic performances. Export your creations as WAV files.
- One-button looping
- MIDI controller support
- Reverse and half-speed toggles
- Multiply function for loop extension
- Auto-record option
- Variable record fade time
- Export loops as WAV
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SimpLoop - A (Fairly) Simple Looper Plugin (AUv3) SimpLoop is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic Pro or GarageBand. Overview - SimpLoop is a fairly simple looper What does "fairly simple" mean? Well, SimpLoop can be configured to be a very simple one button looper - tap to record a loop, tap again to play your loop, then tap to stop and clear the loop. Alternatively, you could assign 6 button functions and two expression controllers to a MIDI hardware controller for an extremely dynamic live looping setup. To help understand what SimpLoop is, it might be easier to cover what SimpLoop is not... SimpLoop does not have any form of tempo sync capability, or support for multiple sync'd loop tracks or A/B "verse" / "chorus" sections, etc. SimpLoop also does not have an undo function or support for importing audio files (*), and it does not remember the recorded loop between sessions. There are several more advanced looper apps that do those sort of things, but if you're new to looping, or you just need a compact and basic looper to include in your setup, SimpLoop was designed for you! (*) You can export your recorded loops as .WAV files. SimpLoop was also designed for live, "on the fly" looping, and could almost be considered "old-school" now, as it draws inspiration from hardware guitar looping pedals that started becoming popular in the early 2000's. As a live looping "veteran" myself, I wanted to create a looper that included some of my favourite hardware pedal features, plus a few things I wished that those pedals had back in the day! As well as basic looping functionality with a 60 second maximum loop time, SimpLoop includes reverse and half-speed toggles, and a multiply function that doubles the current loop length. For example, you could record a one-bar rhythmic loop, then tap Multiply twice to create a four-bar loop made up of 4 repeats of your original recording. Additional features include an auto-record option, variable record fade time for seamless loops (great for creating drones!) as well as different mode settings to determine how the loop, stop and clear commands work. For maximum hands-free looping enjoyment, I recommend using SimpLoop with some kind of MIDI controller that can send MIDI CCs via buttons / switches or knobs / expression pedal inputs. For more info and support please visit: www.waverley-instruments.com/robjackson
Screenshots
Verdict
The clearest difference is price: Osculatrix at Free against SimpLoop's $2.99. Osculatrix also leads on rating (5.0 vs 4.0) and review sentiment (100% vs 60%). SimpLoop's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (13.0 vs 15.0). On ratings volume, 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
Osculatrix is free to download; SimpLoop costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Osculatrix holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 100% of Osculatrix's written reviews are positive against 60% of SimpLoop's.
Osculatrix ships an update monthly, SimpLoop every 2 weeks. The most recent releases landed on June 22, 2026 and September 27, 2026 respectively.
| Parameter | Osculatrix | SimpLoop |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (7 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 100.0% of reviews — better | 60.0% of reviews |
| Number of ratings | 7 — better | 4 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Caldwell | Rob Jackson |
Customer experience
Osculatrix
SimpLoop
In-app purchases
Osculatrix
No in-app purchases
SimpLoop
No in-app purchases





