Cube Synth vs SyndtSphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cube Synth
Explore additive synthesis with intuitive sound morphing and deep parameter control. Create complex soundscapes, vocal phrases, or rhythms with ease. Offers a unique randomizer for instant patch generation.
- Additive synthesis engine
- Intelligent sound morphing
- Over 400 sound presets
- Programmable arpeggiator
- Multiple built-in effects
- Audiobus and Inter-app audio support
- Random sound patch generator
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Cube Synth is a groundbreaking new software instrument giving you the power and flexibility of additive synthesis together with easy editing and morphing capabilities. Macro parameters allow you to control this beast with unequalled ease. Intelligent sound morphing capabilities enables you to easily create complex evolving sound scapes, vocal phrases or stunning rhythms simply by choosing up to four sound sources from a predefined set. Then add one of the predefined envelopes and a unique, complex sound preset containing thousands of parameters is created! If you want to dive deeper into the inner secrets of this synthesis monster you can manipulate each parameter individually to get precise control over the sound. A number of high level parameters such as Brightness and Harmonic spread control hundreds of synthesis parameters in a way modeled after the inner workings of natural instruments. Cube Synth gives you also a new method of getting randomly generated sound patches in a way you never experienced before: roll the dice! Every single try gives you a new unique sound patch, really every try, promised… Synthesis • over 400 sound presets • four morphable sound sources • up to 512 partials per voice • harmonic/inharmonic spectra • arbitrary noise spectra • morphable filter banks • 3 Envelopes with tempo sync • 64 time/level segments per envelope Arpeggiator • Uses programmable sequences with up to 32 steps. • Can trigger single notes and chords. • Unique randomizer generates Arpeggios with 100% usability. • 32 Arpeggios included, unlimited useer arpeggios possible. • For each step you can program tie, accent, transposition and note order Effects • Chorus • Phaser • Overdrive • Ensemble • Echo/Delay • Reverb Global • Audiobus 2 compatible (Input slot) with state saving • Support for Ableton Link. • Inter-app audio compatible (Instrument/Generator) • CoreMIDI / Virtual MIDI • Audio recorder with Metronome. • Upload to SoundCloud and File Export. • Audio pasteboard.
SyndtSphere
Explore a novel approach to sound design with this synthesizer. Rotate a sphere with over 70 presets to discover ideal sounds, enhanced by a stereo ping-pong delay and global settings. It's AUv3 compatible for use within other music production apps.
- Spherical sound exploration
- AUv3 plugin compatibility
- High-quality audio engine
- Stereo ping-pong delay
- Legato mode with glide
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This synthesizer offers a brand new way of finding the optimal sound. By rotating a sphere that consists of more than 70 professionally created states anyone can dial in the perfect sound. In addition to the sphere, a ping-pong delay and a few more global settings are available. SyndtSphere is based on the more traditional polyphonic synthesizer Syndt (also available on the App Store). A video demo is available at the developers website. Features: • AUv3 Compatible - use it as a plugin inside Garageband or any other AUv3 compatible host app. • High quality internal audio engine. • Stereo ping-pong delay • Optional legato mode with glide speed setting. Feedback or suggestions? Drop us a mail: support(at)klevgrand.se or @klevgrand on Twitter
Screenshots
Verdict
The clearest difference is review sentiment: Cube Synth at 89% against SyndtSphere's 40%. Cube Synth also leads on rating (4.7 vs 3.7) and update cadence (every 4 months vs every 23 months). SyndtSphere's advantage is device support (3 vs 1). 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
Cube Synth costs $1.99 and SyndtSphere $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Cube Synth holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 16 and 18 respectively. Written reviews point the same way: 89% of Cube Synth's written reviews are positive against 40% of SyndtSphere's.
Cube Synth ships an update every 4 months, SyndtSphere every 23 months. The most recent releases landed on September 27, 2026 and October 9, 2026 respectively.
| Parameter | Cube Synth | SyndtSphere |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 4.7 (16 ratings) — better | 3.7 (18 ratings) |
| Positive reviews | 89.5% of reviews — better | 40.0% of reviews |
| Number of ratings | 16 | 18 — better |
| Update frequency | Every 4 months — better | Every 23 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 19 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Harry Gohs | Klevgrand Produkter AB |
Customer experience
Cube Synth
SyndtSphere
In-app purchases
Cube Synth
No in-app purchases
SyndtSphere
No in-app purchases









