NLogSynth PRO vs Krill Synthesizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Krill Synthesizer
This virtual analog polyphonic synthesizer offers a streamlined interface for creating quick synth sounds on iPad. It features two oscillators, an LFO, a low-pass filter, two envelopes, and stereo effects, all accessible from a single screen.
- Virtual analog polyphonic synthesizer
- Single-screen interface
- Two oscillators
- One LFO
- Low-pass filter
- Stereo chorus and ping-pong delay
- 64 presets
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The GSi Krill Synthesizer was born from a design originally conceived to work as a mono synthesizer on an embedded processor (RP2040), then it was modified to be polyphonic for a more powerful processor (ARM H7) and finally we thought it would be perfect as a AUv3 for iPad, for those quick and dirty synth sounds you sometimes need without getting lost in endless parameter navigation and menu diving. So here it is, just one screen, one knob - one function, what you see is what you get. Two oscillators, one LFO, one low pass filter, two envelopes, stereo chorus, ping-pong delay, 64 presets. Have fun!
Screenshots
Verdict
The clearest difference is rating: Krill Synthesizer at 5.0 against NLogSynth PRO's 4.6. Krill Synthesizer also leads on update cadence (weekly vs every 2 months) and review sentiment (100% vs 83%). NLogSynth PRO's advantage is price ($8.99 vs $11.99) and ratings volume (33 vs 6). 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
NLogSynth PRO costs $8.99 and Krill Synthesizer $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Krill Synthesizer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: NLogSynth PRO has 33 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 83% of NLogSynth PRO's written reviews are positive against 100% of Krill Synthesizer's.
NLogSynth PRO ships an update every 2 months, Krill Synthesizer weekly. The most recent releases landed on October 1, 2026 and September 24, 2026 respectively.
| Parameter | NLogSynth PRO | Krill Synthesizer |
|---|---|---|
| Price | $8.99 — better | $11.99 |
| Rating | 4.6 (33 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 83.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 33 — better | 6 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | tempo rubato | Genuine Soundware |
Customer experience
NLogSynth PRO
Krill Synthesizer
In-app purchases
NLogSynth PRO
No in-app purchases
Krill Synthesizer
No in-app purchases
Questions
Is NLogSynth PRO free?
Is Krill Synthesizer free?
Which has better reviews, NLogSynth PRO or Krill Synthesizer?
Do NLogSynth PRO or Krill Synthesizer have ads?
Which is updated more often, NLogSynth PRO or Krill Synthesizer?
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