# Intervalz vs Sightlines

The clearest difference is price: Intervalz at $0.99 against Sightlines's $7.99. Sightlines's advantage is update cadence (weekly vs every 43 months) and chart position (#193 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Intervalz costs $0.99 and Sightlines $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Intervalz ships an update every 43 months, Sightlines weekly. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Intervalz | Sightlines |
| --- | --- | --- |
| Price | **$0.99** | $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 43 months | **Weekly** |
| Monetization | — | Paid |
| Best chart rank | — | **#193** |
| Size | 24 MB | 19 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aron Nelson](https://appshunter.io/developer/353420800) | [Aqeel Aadam](https://appshunter.io/developer/1724235864) |

## What reviewers say

### Intervalz

[App page](https://appshunter.io/ios/app/intervalz/id1498318014)

**Features:** Apple Watch app

**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 Intervalz free?

Intervalz costs $0.99, with no in-app purchases.

### Is Sightlines free?

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

### Do Intervalz or Sightlines have ads?

Neither Intervalz nor Sightlines shows ads.

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

Intervalz ships an update every 43 months, and Sightlines weekly. Most recently, Intervalz was updated on October 13, 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.*