# Alien Box vs Spring Reverb

The clearest difference is review sentiment: Spring Reverb at 54% against Alien Box's 0%. Spring Reverb also leads on rating (3.9 vs 1.3) and update cadence (every 13 months vs every 38 months). Alien Box's advantage is price ($2.99 vs $14.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Alien Box costs $2.99 and Spring Reverb $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Spring Reverb holds the better App Store score, 3.9 against 1.3. Both are backed by a comparable volume of ratings — 3 and 13 respectively. Written reviews point the same way: 0% of Alien Box's written reviews are positive against 54% of Spring Reverb's.

Alien Box ships an update every 38 months, Spring Reverb every 13 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Alien Box | Spring Reverb |
| --- | --- | --- |
| Price | **$2.99** | $14.99 |
| Rating | [1.3 (3 ratings)](https://appshunter.io/ios/app/alien-box/id1235647874/reviews) | **[3.9 (13 ratings)](https://appshunter.io/ios/app/spring-reverb/id1480037666/reviews)** |
| Number of ratings | 3 | **13** |
| Positive reviews | 0.0% of reviews | **53.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 13 months** |
| Monetization | Paid | Paid |
| Size | 10 MB | 22 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Eventide](https://appshunter.io/developer/546518026) |

## What reviewers say

### Alien Box

[App page](https://appshunter.io/ios/app/alien-box/id1235647874)

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.

**Highlights:** Unique sound enrichment, LFO modulated vibes, Complex resonator system, AUv3 plugin for hosts, Standalone app mode, Gain, Vibe, Depth, Reverb controls

**Features:** Vision Pro support

**In-app purchases:** none


### Spring Reverb

[App page](https://appshunter.io/ios/app/spring-reverb/id1480037666)

This app emulates the sound of vintage spring reverbs found in guitar amplifiers, offering unique sonic possibilities beyond traditional hardware. It allows for detailed manipulation of physical parameters, creating both authentic and experimental reverb effects for various instruments.

**Highlights:** Emulates popular spring reverb sounds, Manipulate physical spring parameters, Morph between different spring configurations, Tempo-synced reverb decay, Tube-amp style tremolo (pre/post reverb), Modulation for chorus-like effects, Dynamic control with The Ribbon

**In-app purchases:** none


## Frequently asked questions

### Is Alien Box free?

Alien Box costs $2.99, with no in-app purchases.

### Is Spring Reverb free?

Spring Reverb costs $14.99, with no in-app purchases.

### Which has better reviews, Alien Box or Spring Reverb?

Spring Reverb is rated higher. Alien Box averages 1.3 out of 5 from 3 ratings, while Spring Reverb averages 3.9 from 13 ratings.

### Do Alien Box or Spring Reverb have ads?

Neither Alien Box nor Spring Reverb shows ads.

### Which is updated more often, Alien Box or Spring Reverb?

Alien Box ships an update every 38 months, and Spring Reverb every 13 months. Most recently, Alien Box was updated on November 2, 2026 and Spring Reverb on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*