Comparison

NLogSynth PRO vs Stellarvox

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

Head to head
About

NLogSynth PRO

This app is a professional virtual analog synthesizer for iOS, offering a low-latency sound engine with extensive editing capabilities. It supports various inter-app audio and MIDI protocols, allowing for integration with DAWs and external controllers. Create and export custom sounds and recordings with studio-quality audio.

Highlights
  • Virtual analog low-latency sound engine
  • Extensive sound editing with over 150 parameters
  • Support for AudioUnit v3, AudioBus 3, Inter-App Audio
  • Full MIDI implementation and Core MIDI compatibility
  • Studio quality 44.1 kHz Stereo CD quality audio
  • 224 factory sounds and user banks
  • Multi-effect section with delay, chorus, reverb, and more
Features
Read full description

Professional Virtual Analogue Synthesizer supporting AudioUnit v3, AudioBus 3, Inter-App Audio and Core MIDI compatible apps & interfaces. Versatile iOS synth with professional grade virtual analogue low latency sound engine: - Play it from on-screen keyboard - Use MIDI keyboards & controllers via MIDI interfaces - Connect to your digital audio workstation via MIDI interfaces - Play NLogSynth from other iOS apps using virtual Core MIDI - Synchronize NLog via MIDI Clock to other apps or devices - Make audio or MIDI recordings on the run and share your files - Export patches & recordings Supports external MIDI input and output via CoreMIDI compatible interfaces and class compliant USB MIDI interfaces. Full MIDI implementation including velocity control, pitch bend, sustain pedal, modulation wheel, program & bank change, polyphonic after touch, channel pressure and assignable midi controller & MIDI Sync receiving mode. ::: Follow @nlogmusic at Twitter! ::: ::: Featured in How to Make a Noise: iPad Synthesizers Edition (http://noisesculpture.com/ipad) the most widely read synthesizer book ::: - 224 IMPRESSIVE FACTORY SOUNDS  - including fresh new sound set by the producer 7 Skies - ENDLESS options for SOUND EDITING     - Over 150 parameters     - 3 user banks with 96 slots   - STUDIO QUALITY sounds     - Professional 44.1 kHz Stereo CD quality     - 32bit floating point engine     - Highly efficient algorithms - STAGE safe KEYBOARD implementation     - SLIDING & LOCK option     - Double manual option     - POLY, MONO & LEGATO modes     - Velocity control     - Different key sizes - Fully customizable EXPRESSION CONTROL     - Realistic PITCH BEND and MOD WHEEL implementation     - X/Y dimensional controller     - 4 customizable PERFORMANCE knobs     - Keyboard with VERTICAL modulation control - Incredible FAT & RICH:     - New filter implementation for SMOOTH and JUICY control with 7 FILTER types     - UNISONO mode for up to 4 parallel sounds with detune, delay and panning control === SOUND editing features === - 4 Oscillators with 20 waveforms:     - classic analogue SIN, SAWTOOTH, TRIANGLE and SQUARE     - 16 additional carefully designed wavetables  - True PWM pulse-width modulation - Frequency mod - Ring mod - Noise generator - 2 Filter with 7 filter types     - Low, High & Band Passes     - Finest sweeps & smoothest cutoff tuning     - Carefully resonating     - 12 & 24dB option for steepness - 4 ADSR Envelope generators     - Velocity controlled attack time - Slope control - 4 Modulation LFOs     - Sample & hold     - Fade in delay - Modulation Matrix - 4 Modulation slots each modulating 3 destinations - Multi-effect section     - Stereo delay with x-feed & filter     - chorus - flanger - phaser     - distortion - reverb - parametric EQ

About

Stellarvox

Design immersive ambient soundscapes with a hybrid reverb and artificial space designer. Create lush textures, deep spaces, and whispering backgrounds for electronic, experimental, and sound design projects. Offers intuitive controls and inspiring presets for quick, high-quality results.

Highlights
  • Hybrid reverb with artificial space designer
  • Algorithmic reflections tail processing
  • Dynamic timbre changes over time
  • Geometry and dimension control
  • Factory presets and random feature
  • MIDI learn support
  • Standalone and AUv3 module
Features
Read full description

Hybrid reverb with an artificial space designer, combining it with algorithmic reflections tail processing, is ideal to creating immersive ambience of deep spaces, lush atmospheric textures or stunning whispering backgrounds in your ambient, electronic, experimental and sound design projects. Unlike traditional algorithmic reverbs, Stellarvox constructs a complex model of a vast resonant sound spaces with choice of geometry, dimensions and tonal structure of the space, along with a unique feature that dynamically change the timbre of reflections over the reverberation time. The second algorithmic reverb allows you to prolong and blur reflections, adding extra dimensions to the sound space. Easy-to-use controls on a single screen, along with optimally designed parameters that always give great results, make insignificant the peculiarity of that kind of reverbs, when the model creates with a little delay after changing it. Factory presets and the random feature will give you a starting point of inspiration and allow you to get a quick result where you need just to slightly tweak the parameters to align with your idea. This application is great for ambient projects, it can create mesmerizing atmosphere from single infrequent sounds of various instruments, or giving a beautiful and deep backgrounds to sharp sequences in electronics, as well as for any experimental projects that require unusual, deep and rich sound ambience. Stellarvox is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). Stellarvox works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, with supports Audiobus host app. On MacOS, Stellarvox can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. All application features are available on iOS and macOS, including MIDI support (with a MIDI learn option) and audio unit parameters. Stellarvox has a built-in detailed description of all parameters also available as PDF file on the application site. Sound demo: https://www.youtube.com/watch?v=TEtZfvLtJy8 https://www.youtube.com/watch?v=FqCYa1tp2Qw You can find more information on Stellarvox and other audio apps at: https://motion-soundscape.blogspot.com

Screenshots

Stellarvox3 screens

Verdict

The call

The clearest difference is rating: Stellarvox at 5.0 against NLogSynth PRO's 4.6. Stellarvox also leads on review sentiment (100% vs 83%) and device support (3 vs 1). NLogSynth PRO's advantage is price ($8.99 vs $11.99) and update cadence (every 2 months vs every 5 months). On 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

CostPrice · In-app purchases · Ads · Monetization

NLogSynth PRO costs $8.99 and Stellarvox $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Stellarvox holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 33 and 11 respectively. Written reviews point the same way: 83% of NLogSynth PRO's written reviews are positive against 100% of Stellarvox's.

UpkeepUpdate frequency

NLogSynth PRO ships an update every 2 months, Stellarvox every 5 months. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

Scorecard7 real differences · 3 level
NLogSynth PRO versus Stellarvox: the parameters behind the verdict, then further details
ParameterNLogSynth PROStellarvox
Price$8.99 — better$11.99
Rating4.6 (33 ratings)5.0 (11 ratings) — better
Positive reviews83.1% of reviews100.0% of reviews — better
Number of ratings33 — better11
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size25 MB4 MB
Age rating4+4+
Developertempo rubatoIgor Vasiliev

Customer experience

NLogSynth PRO

All ratings32 ratings
Positive87.5%
Neutral3.1%
Negative9.4%
Written reviews166 reviews
Positive83.1%
Neutral7.8%
Negative9.0%

Stellarvox

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

NLogSynth PRO

No in-app purchases

None

Stellarvox

No in-app purchases

Questions

Is NLogSynth PRO free?
NLogSynth PRO costs $8.99, with no in-app purchases.
Is Stellarvox free?
Stellarvox costs $11.99, with no in-app purchases.
Which has better reviews, NLogSynth PRO or Stellarvox?
Stellarvox is rated higher. NLogSynth PRO averages 4.6 out of 5 from 33 ratings, while Stellarvox averages 5.0 from 11 ratings.
Do NLogSynth PRO or Stellarvox have ads?
Neither NLogSynth PRO nor Stellarvox shows ads.
Which is updated more often, NLogSynth PRO or Stellarvox?
NLogSynth PRO ships an update every 2 months, and Stellarvox every 5 months. Most recently, NLogSynth PRO was updated on October 1, 2026 and Stellarvox on October 9, 2026.

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