Comparison

Spreadsheets Synth vs Cantus

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

Head to head
About

Spreadsheets Synth

Create acid basslines and lead sounds with a resonant filter and built-in step sequencer. This app functions as an AUv3 plugin or standalone, offering MIDI support and background audio. It's designed for live performance and integration with other music production tools.

Highlights
  • Acid bass synthesizer
  • Resonant filter with cutoff, resonance, decay, accent
  • Built-in step sequencer
  • AUv3 plugin support
  • Standalone app with background audio
  • MIDI in and out (including Bluetooth MIDI)
  • Phaser and delay effects
Features
Read full description

The 303 lives between the sheets. Spreadsheets Synth is an acid bass synthesizer with a built-in step sequencer — a cultural product of the band Spreadsheets, tuned to 313K and pointed straight at the dance floor. THE SQUELCH Sawtooth or square through a resonant filter with cutoff, resonance, decay, and accent — from rubbery basslines to screaming acid leads. Add distortion for grit, then send it into orbit with the phaser and delay. THE SEQUENCER Program patterns step by step, set the line looping, and ride the cutoff live. It's an instrument for performing, not just programming. PLAYS WITH YOUR WHOLE RIG • AUv3 plugin — load it as an instrument in GarageBand, AUM, Cubasis, Loopy Pro, and any AUv3 host • Standalone app with background audio • MIDI in and out, including Bluetooth MIDI NO STRINGS No account, no ads, no tracking, no data collected. Just voltage.

About

Cantus

This interactive tool helps musicians explore harmony and chord voicings on a virtual piano. It allows users to visualize how notes move within chords, understand modal relationships, and develop a feel for harmony through focused practice.

Highlights
  • Interactive chord and voicing exploration
  • Piano keyboard visualization
  • Modal and scale-based harmony practice
  • Voice-leading movement analysis
  • Tone.js audio playback
  • Account-free operation
Features
Read full description

Cantus - Voicing Lab is an interactive harmony and chord-voicing tool by Nathaniel School of Music for pianists, composers, producers, and music theory students. Explore how notes move inside chords, hear voicings in context, and study color, tension, and modal relationships from the keyboard. Cantus is designed as a focused practice lab: pick a sound, inspect the voice leading, and build intuition for how harmony feels under your hands. FEATURES * Interactive chord and voicing explorer * Piano keyboard visualization * Modal and scale-based harmony practice * Voice-leading movement and pinboard-style comparison * Tone.js audio playback * Self-hosted fonts and bundled web assets * Works without an account BY NATHANIEL SCHOOL OF MUSIC Built for practical harmony learning, composition practice, and deeper chord fluency.

Screenshots

Spreadsheets Synth2 screens
Cantus3 screens

Verdict

The call

The clearest difference is rating: Cantus at 5.0 against Spreadsheets Synth's 2.0. On price, ratings volume, ads and in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Cantus holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard1 real difference · 8 level
Spreadsheets Synth versus Cantus: the parameters behind the verdict, then further details
ParameterSpreadsheets SynthCantus
PriceFreeFree
Rating2.0 (1 ratings)5.0 (1 ratings) — better
Number of ratings11
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size7 MB3 MB
Age rating4+4+
DeveloperJames HurlbutJason Zachariah

In-app purchases

None

Spreadsheets Synth

No in-app purchases

None

Cantus

No in-app purchases

Questions

Is Spreadsheets Synth free?
Spreadsheets Synth is free to download, with no in-app purchases.
Is Cantus free?
Cantus is free to download, with no in-app purchases.
Which has better reviews, Spreadsheets Synth or Cantus?
Cantus is rated higher. Spreadsheets Synth averages 2.0 out of 5 from 1 ratings, while Cantus averages 5.0 from 1 ratings.
Do Spreadsheets Synth or Cantus have ads?
Neither Spreadsheets Synth nor Cantus shows ads.

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