# ab Astrometry X vs SoundScope

The clearest difference is price: SoundScope at $3.99 against ab Astrometry X's $12.99. SoundScope also leads on update cadence (every 3 weeks vs every 7 months). ab Astrometry X's advantage is iOS requirement (12.0 vs 26.1). On ads, in-app purchases and device support there is nothing between them.

ab Astrometry X costs $12.99 and SoundScope $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ab Astrometry X ships an update every 7 months, SoundScope every 3 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ab Astrometry X | SoundScope |
| --- | --- | --- |
| Price | $12.99 | **$3.99** |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/ab-astrometry-x/id6477390551/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 9 MB | 10 MB |
| Requires iOS | **12.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alejandro Cabrera Zuniga](https://appshunter.io/developer/1660382836) | [Waldemar Schneider](https://appshunter.io/developer/1859657539) |

## What reviewers say

### ab Astrometry X

[App page](https://appshunter.io/ios/app/ab-astrometry-x/id6477390551)

This advanced audio effect offers dynamic multitap delay with randomized tap positioning around the listener. Control tap viscosity, time, and loudness intuitively via an XY pad. Create custom delay lines by syncing to your DAW or using free time, in serial or parallel modes.

**Highlights:** Random tap positioning, Viscosity, Time, and Loudness control, Intuitive XY Pad design, DAW sync or free time, Serial or parallel mode

**Features:** Vision Pro support

**In-app purchases:** none


### SoundScope

[App page](https://appshunter.io/ios/app/soundscope-audio-analyzer/id6758302945)

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

**In-app purchases:** none


## Frequently asked questions

### Is ab Astrometry X free?

ab Astrometry X costs $12.99, with no in-app purchases.

### Is SoundScope free?

SoundScope costs $3.99, with no in-app purchases.

### Do ab Astrometry X or SoundScope have ads?

Neither ab Astrometry X nor SoundScope shows ads.

### Which is updated more often, ab Astrometry X or SoundScope?

ab Astrometry X ships an update every 7 months, and SoundScope every 3 weeks. Most recently, ab Astrometry X was updated on November 4, 2026 and SoundScope on October 31, 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.*