Alien Box vs SploshBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Alien Box
This audio effect plugin creates a unique sound with increased sustain and gentle, LFO-modulated vibes. It functions as an AUv3 effect for hosts like GarageBand or as a standalone app for real-time audio input processing.
- Unique sound enrichment
- LFO modulated vibes
- Complex resonator system
- AUv3 plugin for hosts
- Standalone app mode
- Gain, Vibe, Depth, Reverb controls
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Alien Box is a completely new kind of audio effect that you have never heard before. It makes the sound big and slightly increases the sustain while adding gentle vibes to it. The vibes are LFO modulated and the effect is using very complex resonator system inside. It is modulation effect and you can compare it to flanger, phaser or chorus but it is not like any of them… The app is an Audio Unit Effect AUV3 and can be used inside GarageBand or other AU host apps as an effect plug-in. Alien Box can also run as a stand alone app adding effect to the audio input so you can play your guitar, bass or synth directly three the app if you have the connector to do so. Alien Box controls: - Gain - you can use it increase the gain and sustain - Vibe - main tone and background vibes balance - Depth - controls the modulations depth - Reverb - adds reverb to the background vibes
SploshBox
This audio effect plugin offers vintage-style digital reverb with a unique "freeze" function for infinite sustain. It allows for extensive customization of reverb decay, stereo width, and filtering, all while being CPU-efficient.
- Vintage-flavoured digital reverb
- Infinite sustain "freeze" effect
- Adjustable reverb decay time
- Stereo width control
- Low-pass filter for reverb tone
- Mix dry and wet signals
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SploshBox Reverb / Sustainer (AUv3) SploshBox is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic or GarageBand. Overview SploshBox is vintage-flavoured digital reverb that also allows you to "freeze" the reverb tail for infinite sustain effects. The early generation of hardware digital reverbs had a slightly grainy and "unnatural" quality to them due to limited CPU and RAM. SploshBox has similar tonal characteristics, but while being kind to your CPU, it also features up to one minute of reverb decay time! Or, infinity when you engage freeze mode... Parameters Active - Toggles the effect On or Off. When SploshBox is turned Off, any reverb will continue to decay, similar to "trails mode" found in many effects pedals. Delay - Sets a pre-delay time before the incoming audio is passed on to the reverb DSP. This can be used creatively so that the initial attack / transients of a sound are preserved and not "smeared" by the reverb tail for example. Decay - Sets the overall decay time for the reverb tail. This is calculated as the time for a 0dB impulse to decay to -60dB. Typically, unless the incoming signal is 0dB, the actual decay time may appear a little shorter before it hits -60dB. Spread - Sets the stereo width of the generated reverb from totally mono, to very stereo-tastic! LPF - Sets the cutoff frequency of a lowpass filter on the generated reverb. Reduce this parameter to make the reverb effect warmer / softer. Mix - Adjusts the balance between the dry incoming audio, and the wet generated reverb, from completely dry to 100% wet. Freeze - Engages the reverb freeze effect so that whatever is in the reverb buffers will sustain continuously. By toggling Freeze in and out, very interesting creative and drone effects can be achieved, especially when assigning the parameter to a MIDI controller. Please note that when Freeze is On, reverb will not be applied to your dry input signal - it's as if the reverb is frozen in that moment. SploshBox does not store "frozen" audio between sessions, so if Freeze mode is On when restoring a session, you won't hear any reverb. If the name sounds familiar, SploshBox is a version of the SPLOSHBOX module developed for Voltage Modular by Waverley Instruments. For more info and support please visit: www.waverley-instruments.com/robjackson
Screenshots
Verdict
The clearest difference is review sentiment: SploshBox at 100% against Alien Box's 0%. SploshBox also leads on rating (5.0 vs 1.3) and update cadence (daily vs every 38 months). Alien Box's advantage is iOS requirement (10.0 vs 12.0). On ratings volume, ads, in-app purchases 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
Alien Box costs $2.99 and SploshBox $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SploshBox holds the better App Store score, 5.0 against 1.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 0% of Alien Box's written reviews are positive against 100% of SploshBox's.
Alien Box ships an update every 38 months, SploshBox daily. The most recent releases landed on August 14, 2026 and September 18, 2026 respectively.
| Parameter | Alien Box | SploshBox |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | 1.3 (3 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 3 |
| Update frequency | Every 38 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 10 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandar Mlazev | Rob Jackson |
Customer experience
Alien Box
SploshBox
In-app purchases
Alien Box
No in-app purchases
SploshBox
No in-app purchases









