Spreadsheets Synth vs Cantus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- 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
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Spreadsheets Synth | Cantus |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 1 | 1 |
| Update frequency | — | Every 5 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 7 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | James Hurlbut | Jason Zachariah |
In-app purchases
Spreadsheets Synth
No in-app purchases
Cantus
No in-app purchases
Questions
Is Spreadsheets Synth free?
Is Cantus free?
Which has better reviews, Spreadsheets Synth or Cantus?
Do Spreadsheets Synth or Cantus have ads?
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