Schlap AUv3 vs AudioScope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Schlap AUv3
This audio plugin offers an aggressive, characterful compressor inspired by vintage hardware. It enhances tracks with energy and impact by utilizing RMS detection for dynamic and punchy sound. It functions as a standalone app or an AUv3 plugin within music production hosts.
- Aggressive program-dependent compressor
- RMS detection for dynamic sound
- Standalone app and AUv3 plugin
- Inspired by vintage hardware
- Enhances track energy and impact
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Schlap is a characterful, colourful and aggressive sounding program-dependent AUv3, IAA & standalone compressor. It takes inspiration from hardware RMS compressors of the past and evolves them into a modern setting. If you want your tracks to be energetic, in-your-face and bold, make ‘em ‘Schlap’. The compressor uses a program-dependent attack and release influenced by old hardware which makes the compression sound characterful and dynamic. The RMS detection means that Schlap detects the average loudness of a signal, resulting in sudden short peaks being uncompressed so that they can attack hard and sound heavy hitting. Also inherently in RMS detection, there is a slight delay in compression which allows the initial, early transients to sneak through uncompressed so they keep their punch. You’ve got a safe, controlled track you think you’re happy with, but you have to ask yourself… ‘Does it Schlap?’ Schlap is both a stand-alone application as well as an AUv3 plugin, meaning it works within iOS and iPadOS hosts such as GarageBand.
AudioScope
This audio plugin offers a comprehensive suite of tools for mixing and mastering music. It allows users to compare their mixes to reference tracks, visualize frequency responses, and control their entire mix from a single interface. Advanced features include snapshot morphing, track grouping, and built-in EQ and compression.
- Multi-channel live mixer
- Reference track comparison
- Frequency response visualization
- Snapshot morphing
- Track grouping
- Built-in EQ and compression
- MIDI control
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AudioScope is an invaluable audio plugin for mixing and mastering with a toolbox of additional mixing aids. It was originally created as a method for comparing your mix to a reference track and seeing exactly what frequencies to tweak in order to obtain a desired match. This alone is incredibly useful for creating the feel of a particular genre of music, by tweaking your mix to match. AudioScope is so much more than this! It includes a great visual mixer which enables you control your entire mix from a single window inside your DAW. You see a top-down visualisation of your entire mix and stereo balance. You can save up to 3 compare mixes and quickly switch between them. You can also save up to 12 snapshots of stereo positions and levels, then morph between them. All of this functionality is available via MIDI, so with one simple CC command, you can switch out one mix for another or engage a snapshot. You are able to group your drums and other elements so that the mix doesn't become overwhelming, allowing you to focus on a subset of key elements if you wish. AudioScope also includes a suite of tools to adjust EQ, compression, and overall balance of your mix. The way AudioScope works is unique, with a quick and easy workflow: Insert an instance of AudioScope on each of your track's Insert Effect slot and name the track. Now simply open one of the instances and you have the ability to control all tracks from a single window. AudioScope is equiped with its own shelf and peak filters, EQ and lookahead compressor (with Sidechain). You can find demonstrations and tutorials for this and all my apps on the 'Paul the MusicMan' YouTube channel. Features: ○ Take control of your host DAW using a single simple interface. ○ Compare your master mixes frequency response to a reference track for a given genre. ○ Compare tracks to see which frequency ranges are problematic graphically. ○ Control your DAW's entire mix from a single 2D live mixer. ○ Change the EQ of each track quickly and easily from a single window. ○ Includes the ability to add low and high shelf filters to each track. ○ Add up to 3 parameteric EQ's to each track to cut or boost frequency ranges. ○ Enable the internal look ahead sidechain compressor. ○ Capture up to 3 compare mixes and preview in real time. ○ Create up to 12 snapshots and fade from one to another. ○ Invert the phase of tracks to avoid phasing issues. ○ Remove DC option to remove unwanted noise and rumble below 60Hz. ○ Instant Pass Thru to bypass all instances of AudioScope. ○ Mix lock to prevent accidental changes to your mix. ○ Monitor up to 32 tracks at once.
Screenshots
Verdict
The clearest difference is price: Schlap AUv3 at $4.99 against AudioScope's $14.99. Schlap AUv3 also leads on in-app purchases (none vs 4) and rating (4.9 vs 4.7). AudioScope's advantage is update cadence (every 3 months vs every 11 months). On review sentiment, ratings volume, ads and monetization model 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
Schlap AUv3 costs $4.99 and AudioScope $14.99 up front. AudioScope sells 4 one-off in-app purchases. Schlap AUv3 asks for nothing beyond the download.
Schlap AUv3 holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 17 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Schlap AUv3 ships an update every 11 months, AudioScope every 3 months. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.
| Parameter | Schlap AUv3 | AudioScope |
|---|---|---|
| Price | $4.99 — better | $14.99 |
| Rating | 4.9 (17 ratings) — better | 4.7 (9 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 17 — better | 9 |
| Update frequency | Every 11 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Paid |
| Best chart rank | #192 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13 |
| Further details — not scored | ||
| Size | 5 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Caelum Audio | 4Pockets.com |
Customer experience
Schlap AUv3
AudioScope
In-app purchases
Schlap AUv3
No in-app purchases
AudioScope
- Small Tip$1.99
- Medium Tip$2.99
- Large Tip$4.99
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- Huge Tip$9.99








