Comparison

NLogSynth PRO vs Async Sampler

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

Async Sampler

Create captivating sound collages, dynamic textures, and rhythmic patterns with this powerful musical instrument. It offers asynchronous and synchronous playback modes, a versatile LFO, and an effects processor to elevate your sound design.

Highlights
  • Standalone and AUv3 versions
  • Three independent samplers
  • Extensive sample library
  • Upload your own samples
  • Asynchronous and synchronous playback
  • Flexible LFO system
  • Effects processor
Read full description

Async Sampler, a powerful musical instrument designed to bring your soundscapes to life. This flexible tool is dedicated to crafting captivating sound collages, dynamic asynchronous textures, rhythmic patterns, and rich sound designs. It opens up a world of creative possibilities, making it the perfect companion for music producers, sound designers, ambient, and noise enthusiasts. Whether you're a seasoned musician or a curious explorer, Async Sampler is here to inspire and elevate your musical journey. App comes with a rich library of unique samples, and you can easily upload and use your own sounds. Async Sampler fundamentally consists of three samplers that can reproduce sound asynchronously, meaning they can operate without being tied to a specific BPM, or synchronously, using an external MIDI clock source or the tempo of your project if you're using Async Sampler as an AUv3 plugin. The instrument features a versatile LFO that allows you to control any parameter. Async includes an effects processor and a master bus section. Also, you have the option to use external MIDI controllers, save and load your custom presets and samples, among other features. Key features: — Standalone and AUv3 versions — Three independent samplers — Extensive sample library out of the box — Ability to upload your own samples — Asynchronous and synchronous playback modes for each sample — Flexible LFO system that can control almost any parameter — Effects processor — Ability to save presets — And much more

Screenshots

Async Sampler3 screens

Verdict

The call

The clearest difference is price: NLogSynth PRO at $8.99 against Async Sampler's $14.99. Async Sampler's advantage is update cadence (every 2 weeks vs every 2 months) and device support (3 vs 1). On rating, review sentiment, ratings volume and ads 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 Async Sampler $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for NLogSynth PRO against 4.5 for Async Sampler. Both are backed by a comparable volume of ratings — 33 and 18 respectively. Written reviews are what separate them: 83% of NLogSynth PRO's written reviews are positive against 78% of Async Sampler's.

UpkeepUpdate frequency

NLogSynth PRO ships an update every 2 months, Async Sampler every 2 weeks. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
NLogSynth PRO versus Async Sampler: the parameters behind the verdict, then further details
ParameterNLogSynth PROAsync Sampler
Price$8.99 — better$14.99
Rating4.6 (33 ratings) — better4.5 (18 ratings)
Positive reviews83.1% of reviews — better77.8% of reviews
Number of ratings33 — better18
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.011.0 — better
Further details — not scored
Size25 MB235 MB
Age rating4+4+
Developertempo rubatoSergei Zhulkov

Customer experience

NLogSynth PRO

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

Async Sampler

All ratings18 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews9 reviews
Positive77.8%
Neutral0.0%
Negative22.2%

In-app purchases

None

NLogSynth PRO

No in-app purchases

None

Async Sampler

No in-app purchases

Questions

Is NLogSynth PRO free?
NLogSynth PRO costs $8.99, with no in-app purchases.
Is Async Sampler free?
Async Sampler costs $14.99, with no in-app purchases.
Which has better reviews, NLogSynth PRO or Async Sampler?
NLogSynth PRO is rated higher. NLogSynth PRO averages 4.6 out of 5 from 33 ratings, while Async Sampler averages 4.5 from 18 ratings.
Do NLogSynth PRO or Async Sampler have ads?
Neither NLogSynth PRO nor Async Sampler shows ads.
Which is updated more often, NLogSynth PRO or Async Sampler?
NLogSynth PRO ships an update every 2 months, and Async Sampler every 2 weeks. Most recently, NLogSynth PRO was updated on October 1, 2026 and Async Sampler on September 30, 2026.

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