Comparison

Heathcliff Pro vs Sightlines

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Heathcliff Pro

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Heathcliff Pro turns any iOS host into a DJ channel strip. Cut, mix, and blend one track into the next — without thinking about the right preset. Heathcliff Pro isn't your parametric EQ; it's the channel strip for transitions. Heathcliff Pro is built for low latency — aggressive performance targets keep it out of the way when you're playing live, and multiple instances won't tax your CPU. The tuning takes its cue from leading DJ mixers, with user-selectable character profiles so you can match the feel to your mixing style. * 3- or 4-band EQ — five character profiles from clean-cut to bleeding character * FX: Filter, Echo, Reverb, and Redux — switchable FX * Trim and volume — set the gain so the blend sits right * Character profiles — voicing presets for EQ, filter, and FX, matched to your mixing style * MIDI learn — supports legacy and modern 14-bit MIDI controllers (most modern DJ controllers are 14-bit). Map UI controls to your hardware; a DJ controller is the recommended way to play. * Low latency — plays live, stacks across multiple instances * AUv3 — works in any AUv3 host Note: Heathcliff Pro is an AUv3 plugin, not a standalone DJ app. The app runs inside a plugin host app like GarageBand, AUM, or Cubasis. Your DAW, your DJ moves. That's Heathcliff!

About

Sightlines

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
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Make noise, texture, and percussion sing. Add motion and stereo spread to basic sounds. Load samples and sculpt them endlessly. Leave your mark on any sound with harmonic filtering. Sightlines is a playable harmonic filter. Built from a collection of resonant bandpass filters tuned to the harmonic series, designed to bring out a customizable set of musical frequencies in any sound. Tune it to a fixed frequency like a resonator, or send it MIDI to make it come alive as an instrument. Sightlines can be loaded as an instrument or an audio effect. As an instrument, use it with samples, noise, or oscillators to construct sounds never heard before. As an effect, add movement and interest to any sound, and even impart tonality onto unpitched input. SOUND SOURCES • Noise – filter variable color noise and random noise bursts for Sightlines’ simplest and quickest output. • Samples – send samples through resonant filters as one-shots or infinite looping versions of themselves, great for found sound and tonal samples alike. • Synth – skip the filters entirely and use Sightlines as a harmonic synth, where you can customize and modulate the proportion of each harmonic in the signal. • Audio effect – use Sightlines as an audio effect on any track. MOVEMENT AND EFFECTS • Manipulate overtones – stretch, bend, and reimagine the harmonic series to retune Sightlines’ output into realistic or indescribable sonic spaces. • Quantize frequencies – snap all of Sightlines’ filters to a scale, to impart that key quality onto any sound. • Balance bands – maneuver through the harmonic space by scanning, tilting, or spreading Sightlines’ bands. • End of chain – make your output shine with a built-in chorus, BBD-style delay, and reverb. FEATURES • Modulation – modify any control in Sightlines with multiple LFOs, sequencers, smooth random sources, and performance effects. • Presets – full preset control over every parameter in Sightlines. Cross-platform preset format for sharing with friends. • Waymaker – connect to Sightlines’ sibling application, Waymaker, for direct sequencing of Sightlines’ without MIDI routing. Also available for macOS and Windows in VST3 / AU / AAX formats from Aqeel Aadam Sound.

Screenshots

Heathcliff Pro3 screens
Sightlines1 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
Heathcliff Pro versus Sightlines: the parameters behind the verdict, then further details
ParameterHeathcliff ProSightlines
Price$2.99 — better$7.99
Rating—5.0 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 4 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size13 MB19 MB
Age rating4+4+
DeveloperJuan SegoviaAqeel Aadam

In-app purchases

None

Heathcliff Pro

No in-app purchases

None

Sightlines

No in-app purchases

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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