# Spatializer vs Lines

The clearest difference is price: Spatializer at $6.99 against Lines's $19.99. Spatializer also leads on update cadence (every 2 months vs every 13 months). Lines's advantage is rating (5.0 vs 4.8) and review sentiment (100% vs 91%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Spatializer costs $6.99 and Lines $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lines holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 27 and 11 respectively. Written reviews point the same way: 91% of Spatializer's written reviews are positive against 100% of Lines's.

Spatializer ships an update every 2 months, Lines every 13 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Spatializer | Lines |
| --- | --- | --- |
| Price | **$6.99** | $19.99 |
| Rating | [4.8 (27 ratings)](https://appshunter.io/ios/app/spatializer/id1574889552/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/lines-feedback-multieffect/id6461267498/reviews)** |
| Number of ratings | **27** | 11 |
| Positive reviews | 90.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 13 months |
| Monetization | Paid | Paid |
| Size | 13 MB | 29 MB |
| Requires iOS | 12.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [quantovox](https://appshunter.io/developer/484686124) | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) |

## What reviewers say

### Spatializer

[App page](https://appshunter.io/ios/app/spatializer/id1574889552)

Enhance audio with stereo widening that preserves mono compatibility and avoids phase issues. This tool synthesizes side channel information, ideal for mono sources or adding depth to existing stereo tracks without compromising the mid channel.

**Highlights:** Stereo widening without phase smearing, Synthesizes side channel information, Preserves mid channel integrity, Flexible for mono and stereo sources, Transparent or strong effect options, Multiband transient shapers, Directional RMS distribution visualization

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

**In-app purchases:** none


### Lines

[App page](https://appshunter.io/ios/app/lines-feedback-multieffect/id6461267498)

This audio effect plugin transforms any signal into a wide spectrum of sounds, from lo-fi to distortion and feedback. It can also function as an experimental synthesizer, creating rhythms and soundscapes even without input.

**Highlights:** Creative signal mangling, Experimental synthesizer, Feedback-based sound design, Wide range of audio effects, Rhythm and soundscape generation

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spatializer free?

Spatializer costs $6.99, with no in-app purchases.

### Is Lines free?

Lines costs $19.99, with no in-app purchases.

### Which has better reviews, Spatializer or Lines?

Lines is rated higher. Spatializer averages 4.8 out of 5 from 27 ratings, while Lines averages 5.0 from 11 ratings.

### Do Spatializer or Lines have ads?

Neither Spatializer nor Lines shows ads.

### Which is updated more often, Spatializer or Lines?

Spatializer ships an update every 2 months, and Lines every 13 months. Most recently, Spatializer was updated on November 3, 2026 and Lines 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.*