# Retrocord vs Sightlines

The clearest difference is price: Sightlines at $7.99 against Retrocord's $19.99. Sightlines also leads on update cadence (weekly vs every 3 weeks) and chart position (#193 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Retrocord costs $19.99 and Sightlines $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Retrocord ships an update every 3 weeks, Sightlines weekly. Both last shipped on October 17, 2026.

## The numbers

| Metric | Retrocord | Sightlines |
| --- | --- | --- |
| Price | $19.99 | **$7.99** |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/sightlines-harmonic-filter/id6801937031/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Paid |
| Best chart rank | — | **#193** |
| Size | 5 MB | 19 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rocamr Labs, LLC](https://appshunter.io/developer/1834237385) | [Aqeel Aadam](https://appshunter.io/developer/1724235864) |

## What reviewers say

### Retrocord

[App page](https://appshunter.io/ios/app/retrocord/id6762391432)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sightlines

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

**Currently charting:** #193 Top Paid · Music (US App Store)

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 Retrocord free?

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

### Is Sightlines free?

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

### Do Retrocord or Sightlines have ads?

Neither Retrocord nor Sightlines shows ads.

### Which is updated more often, Retrocord or Sightlines?

Retrocord ships an update every 3 weeks, and Sightlines weekly. Most recently, Retrocord was updated on October 17, 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.*