Addictive microSynth vs SyndtSphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Addictive microSynth
Create beautiful sounds and driving loops with a powerful wavetable synthesizer and a 4-track loop recorder. Explore vast sonic territories with intelligent randomization and real-time editing. Compatible with hardware controllers for an enhanced experience.
- 4-track loop recorder with overdubbing
- Dynamic wavetable synthesizer
- Live performance keyboard
- Programmable arpeggiator
- Audiobus 2 support
- MIDI keyboard compatibility
- Export audio and MIDI files
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Combines the synthesis power of Addictive Synth with an easy to use 4 track loop phrase recorder. #1 Staff Favorites on US App Store ! It was never so easy to create beautiful sounds and driving loops. The unique dynamic wavetable synthesis allows you to explore an unprecedented wide range of sonic territory. From acid loops, crystal clear percussions, realistic human choirs to complex musical soundscapes nothing seems impossible with only a handful parameters to tweak. Together with the intelligent randomizer for both sounds and arpeggios you will loose any sense of time and space while exploring unknown sonic territories. Right from the beginning you'll understand why it's named Addictive. With Version 1.1 you get instant hardware access together with the AKAI SynthStation 25. Use the hardware buttons for scrolling through presets and arpeggios, operating the Arpeggiator and rolling our famous dice to get instant new arpeggio creations ! Features: 4 track Loop recorder • Live recording/playback of phrases divided in up to 4 tracks with unlimited overdubbing. • Mute/Solo for each track. • Paste loops from other music Apps in one of the 4 tracks. • Loop length can be set from one to eight bars. Dynamic wavetable synthesizer • Six dynamic wavetable oscillators per voice, up to 48 total. • Continous morphing between two oscillator sets. • Realtime editing of up to 128 partials (overtones). • Realtime editing of filter structure to create arbitrary body resonances. • Extensive modulation possibilities using up to 4 LFOs and 4 Envelopes. • Control matrix allows real time control of five parameters using MIDI Breath and Footcontroller, the modulation wheel and the tilt sensors. • Monophonic or polyphonic with 4 voices. ( 2 voices on older devices ) • 128 factory presets, unlimited user presets can be shared. • Up to three effects concurrently usable selected from: equalizer, phaser, flanger, chorus and stereo/cross delay. Live • Play melodies live with onscreen keyboard pads. Drag fingers for slides and vibrato. • Use a CoreMIDI compatible interface to play with a MIDI Keyboard. • Musical scale setting makes for easy playing. Full featured programmable 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 user arpeggios possible. • For each step you can program tie, accent, transposition and note order Global • Audiobus 2 support (requires iOS 7 or newer) • Export loops as audio and midi files. • Audio pasteboard for exchange with other Apps • Exchange user presets with File Sharing in iTunes.
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 rating: SyndtSphere at 3.7 against Addictive microSynth's 3.0. SyndtSphere also leads on ratings volume (18 vs 6). Addictive microSynth's advantage is review sentiment (81% vs 40%) and price ($0.99 vs $1.99). On update cadence, ads, in-app purchases and monetization model 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
Addictive microSynth costs $0.99 and SyndtSphere $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SyndtSphere holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 6 and 18 respectively. Written reviews complicate that: 81% of Addictive microSynth's written reviews are positive against 40% of SyndtSphere's, so the app with the better star average is not the one people write more warmly about.
Addictive microSynth ships an update every 13 months, SyndtSphere every 23 months. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.
| Parameter | Addictive microSynth | SyndtSphere |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 3.0 (6 ratings) | 3.7 (18 ratings) — better |
| Positive reviews | 81.1% of reviews — better | 40.0% of reviews |
| Number of ratings | 6 | 18 — better |
| Update frequency | Every 13 months — better | Every 23 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 5.1.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 21 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Harry Gohs | Klevgrand Produkter AB |
Customer experience
Addictive microSynth
SyndtSphere
In-app purchases
Addictive microSynth
No in-app purchases
SyndtSphere
No in-app purchases
Questions
Is Addictive microSynth free?
Is SyndtSphere free?
Which has better reviews, Addictive microSynth or SyndtSphere?
Do Addictive microSynth or SyndtSphere have ads?
Which is updated more often, Addictive microSynth or SyndtSphere?
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