# ECHO B2 vs spectwhirl

The clearest difference is review sentiment: ECHO B2 at 100% against spectwhirl's 33%. ECHO B2 also leads on rating (5.0 vs 4.0) and iOS requirement (9.3 vs 12.0). spectwhirl's advantage is price ($4.99 vs $11.99) and device support (3 vs 1). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

ECHO B2 costs $11.99 and spectwhirl $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ECHO B2 holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 7 and 5 respectively. Written reviews point the same way: 100% of ECHO B2's written reviews are positive against 33% of spectwhirl's.

## The numbers

| Metric | ECHO B2 | spectwhirl |
| --- | --- | --- |
| Price | $11.99 | **$4.99** |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/echo-b2/id1640987290/reviews)** | [4.0 (5 ratings)](https://appshunter.io/ios/app/spectwhirl/id6471030896/reviews) |
| Number of ratings | **7** | 5 |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | Paid | Paid |
| Size | 56 MB | 7 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Genuine Soundware](https://appshunter.io/developer/1560880481) | [Alexey Nadzharov](https://appshunter.io/developer/729549192) |

## What reviewers say

### ECHO B2

[App page](https://appshunter.io/ios/app/echo-b2/id1640987290)

This digital recreation of a vintage echo unit offers authentic vintage sound with modern control. Explore unique delay effects and circuit hiss for a classic audio experience.

**Highlights:** Digital recreation of Binson Echorec mod. T5E, Authentic vintage sound, Adjustable head alignment (Azimuth), Drum motor speed control, Audible circuit hiss adjustment, MIDI controllable parameters

**In-app purchases:** none


### spectwhirl

[App page](https://appshunter.io/ios/app/spectwhirl/id6471030896)

This audio effect app transforms input sound into new textures and bell-like tones by extracting and manipulating sinewave components. It offers advanced control over delay lines, frequency shifting, and filtering, with gesture recording for parameter automation.

**Highlights:** Sinewave component extraction and grouping, Delay lines with feedback, Frequency shifter and sample-and-hold effects, Configurable filtering, Gesture recording for automation, Scene saving and management

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ECHO B2 free?

ECHO B2 costs $11.99, with no in-app purchases.

### Is spectwhirl free?

spectwhirl costs $4.99, with no in-app purchases.

### Which has better reviews, ECHO B2 or spectwhirl?

ECHO B2 is rated higher. ECHO B2 averages 5.0 out of 5 from 7 ratings, while spectwhirl averages 4.0 from 5 ratings.

### Do ECHO B2 or spectwhirl have ads?

Neither ECHO B2 nor spectwhirl shows ads.

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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.*