# Heathcliff Pro vs Sightlines

The clearest difference is price: Heathcliff Pro at $2.99 against Sightlines's $7.99. Sightlines's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Heathcliff Pro costs $2.99 and Sightlines $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Heathcliff Pro ships an update every 4 weeks, Sightlines weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Heathcliff Pro | Sightlines |
| --- | --- | --- |
| Price | **$2.99** | $7.99 |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/sightlines-harmonic-filter/id6801937031/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | — | Paid |
| Size | 13 MB | 19 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Juan Segovia](https://appshunter.io/developer/6785376468) | [Aqeel Aadam](https://appshunter.io/developer/1724235864) |

## What reviewers say

### Heathcliff Pro

[App page](https://appshunter.io/ios/app/heathcliff-pro/id6785376346)

**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 Heathcliff Pro free?

Heathcliff Pro costs $2.99, with no in-app purchases.

### Is Sightlines free?

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

### Do Heathcliff Pro or Sightlines have ads?

Neither Heathcliff Pro nor Sightlines shows ads.

### Which is updated more often, Heathcliff Pro or Sightlines?

Heathcliff Pro ships an update every 4 weeks, and Sightlines weekly. Most recently, Heathcliff Pro was updated on October 24, 2026 and Sightlines on October 25, 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.*