# 055U4RY vs Sightlines

The clearest difference is chart position: 055U4RY at #182 against Sightlines's unranked. 055U4RY also leads on price ($6.99 vs $7.99). Sightlines's advantage is iOS requirement (13.0 vs 17.0). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

055U4RY costs $6.99 and Sightlines $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for 055U4RY against 5.0 for Sightlines. Both are backed by a comparable volume of ratings — 13 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

055U4RY ships an update every 5 days, Sightlines weekly. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 055U4RY | Sightlines |
| --- | --- | --- |
| Price | **$6.99** | $7.99 |
| Rating | [4.9 (13 ratings)](https://appshunter.io/ios/app/055u4ry/id6789734684/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/sightlines-harmonic-filter/id6801937031/reviews)** |
| Number of ratings | **13** | 6 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Paid | Paid |
| Best chart rank | **#182** | — |
| Size | 2 MB | 19 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [LASZLO DOBROVOLSZKI](https://appshunter.io/developer/6779159106) | [Aqeel Aadam](https://appshunter.io/developer/1724235864) |

## What reviewers say

### 055U4RY

[App page](https://appshunter.io/ios/app/055u4ry/id6789734684)

**Currently charting:** #182 Top Paid · Music (US App Store)

This app is a unique polyphonic synthesizer designed to evoke horror-themed soundscapes. It features a distinctive visual interface resembling a haunted DOS terminal with a skull motif, offering a variety of synthesis engines and effects for creating unsettling audio.

**Highlights:** 8-voice polyphonic synthesizer, 15 synthesis engines, Twin chaotic LFOs, Shepard-Risset layer, State-variable filter, Sample-rate reducer and bit-depth crusher, Real-time stutter buffer (GLTCH)

**Features:** Vision Pro support

**In-app purchases:** none


### Sightlines

[App page](https://appshunter.io/ios/app/sightlines-harmonic-filter/id6801937031)

Shape sounds with a playable harmonic filter. Add motion, stereo spread, and unique textures to noise, samples, or synths. Tune it like a resonator or control it with MIDI for endless sonic possibilities.

**Highlights:** Harmonic filter bank, MIDI control, Sample loading, Noise and synth sound sources, Modulation capabilities, Built-in chorus, delay, and reverb

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 055U4RY free?

055U4RY costs $6.99, with no in-app purchases.

### Is Sightlines free?

Sightlines costs $7.99, with no in-app purchases.

### Which has better reviews, 055U4RY or Sightlines?

Sightlines is rated higher. 055U4RY averages 4.9 out of 5 from 13 ratings, while Sightlines averages 5.0 from 6 ratings.

### Do 055U4RY or Sightlines have ads?

Neither 055U4RY nor Sightlines shows ads.

### Which is updated more often, 055U4RY or Sightlines?

055U4RY ships an update every 5 days, and Sightlines weekly. Most recently, 055U4RY was updated on October 14, 2026 and Sightlines on October 17, 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.*