Comparison

Phase Chimes vs Sightlines

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

Head to head
About

Phase Chimes

Create intricate musical compositions by linking gears to generate complex rhythms and melodies. Explore generative music ideas standalone or as a MIDI plugin within other music production apps.

Highlights
  • Generative rhythm and melody composition
  • AUv3 MIDI plugin support
  • Standalone app functionality
  • Adjustable gear parameters (size, angle, velocity)
  • Composition snapshots and transitions
  • On-the-fly performance capabilities
  • Internal sound library
Read full description

MAKE MUSICAL MACHINES! Link gears together to compose surprisingly complex rhythms and melodies. Runs as an AUv3 MIDI plugin in host apps like AUM and Logic Pro (for iPad), or as a standalone app so you can explore musical ideas on your iPhone or iPad whenever inspiration strikes! THE CONCEPT - Differently-sized gears define gear ratios, which produce polyrhythms. - The connection angle between gears determines note pitch. Use these simple principles to create generative compositions with a visually elegant user interface. Compose patterns that evolve over time, or perform live by changing and arranging gears on-the-fly. FEATURES - Set each gear's size, offset, velocity, duration, and MIDI channel. - Store multiple snapshots of your composition and smoothly transition between them. - Reposition groups of gears to transpose and re-harmonize multiple notes at the same time. - Almost any aspect of a composition can be randomized. - Control external software or hardware instruments when in standalone MIDI mode or as an AUv3 plugin. - Synchronizes with your DAW's timeline to play in time with other tracks. - Get started quickly with an onscreen tutorial and a bunch of factory presets. SOUNDS Select from internal sounds such as a sampled grand piano, a Wurlitzer, and a vintage synthesizer. Whether you want to create a live audio-visual performance, add a polyrhythmic layer to your project, or compose an ambient, meditative atmosphere, Phase Chimes will surprise you with something new every time you engage with it.

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
Read full description

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

Phase Chimes4 screens
Sightlines1 screens

Verdict

The call

The clearest difference is price: Sightlines at $7.99 against Phase Chimes's $9.99. Sightlines also leads on iOS requirement (13.0 vs 16.6). On rating, review sentiment, ratings volume and update cadence 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

Phase Chimes costs $9.99 and Sightlines $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Phase Chimes against 5.0 for Sightlines. Both are backed by a comparable volume of ratings — 8 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Phase Chimes ships an update every 2 weeks, Sightlines weekly. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 8 level
Phase Chimes versus Sightlines: the parameters behind the verdict, then further details
ParameterPhase ChimesSightlines
Price$9.99$7.99 — better
Rating5.0 (8 ratings)5.0 (6 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better6
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.613.0 — better
Further details — not scored
Size33 MB19 MB
Age rating4+4+
DeveloperKenneth MurphyAqeel Aadam

Customer experience

Phase Chimes

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Sightlines

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Phase Chimes

No in-app purchases

None

Sightlines

No in-app purchases

Questions

Is Phase Chimes free?
Phase Chimes costs $9.99, with no in-app purchases.
Is Sightlines free?
Sightlines costs $7.99, with no in-app purchases.
Which has better reviews, Phase Chimes or Sightlines?
Phase Chimes and Sightlines are both rated 5.0 out of 5 on the App Store, from 8 and 6 ratings respectively.
Do Phase Chimes or Sightlines have ads?
Neither Phase Chimes nor Sightlines shows ads.
Which is updated more often, Phase Chimes or Sightlines?
Phase Chimes ships an update every 2 weeks, and Sightlines weekly. Most recently, Phase Chimes was updated on October 8, 2026 and Sightlines on October 17, 2026.

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