Comparison

Numa Player vs AudioKit Synth One J6 + AUv3

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

Head to head
About

Numa Player

This free virtual instrument offers a vast library of high-quality sounds for music creation. It features a flexible multizone system, advanced sound engine, and extensive effects, suitable for both live performances and studio work across multiple platforms.

Highlights
  • Free multitimbral instrument player
  • Cross-platform (macOS, Windows, Linux, iOS)
  • Standalone or plugin mode
  • Multizone sound management
  • Advanced multi-core sound engine
  • Extensive sound library
  • 9 insert effects and 3 master effects
Features
Read full description

Numa Player is a completely free virtual instrument. It's not only the perfect companion for your SL Keyboard, but it is also much more! The User Interface scales to different monitor sizes to fit best in your Audio/MIDI setup and makes Numa Player the first Studiologic Instrument Player available for macOS, Windows, Linux and iOS. KEY POINTS • A completely free Multitimbral Instrument Player. • The Only Cross-Platform Instrument: macOS, Windows, Linux and iOS. • Works in Standalone or Plugin mode. • The perfect match for Studiologic SL Controllers. • Live performances and Studio features. • A new "easy to use" user interface. • 4 Parts, 27 free sounds. • 9 Insert Effects and 3 Master Effects. MULTI-CORE. The advanced sound engine of Numa Player 2 takes your performance to the next level. It's now optimized to harness the full power of your device's multi-core cpu, delivering exceptional performance and ultra-low latency even in the most demanding setups1. Enjoy higher polyphony and smoother playback, no matter how complex your project gets. MULTIZONE. Designed with ultimate flexibility in mind, Numa Player 2 allows you to create and manage infinite Zones effortlessly. Add, duplicate, or drag and reposition zones with ease, all within an intuitive interface that puts full creative control at your fingertips. Customize each zone with its own sound parameters, keyboard ranges, and MIDI settings, or even assign custom colors for clear and easy navigation during your performance. MANY SOUNDS. Numa Player 2 comes packed with an extensive library of professionally recorded, high-quality sounds, covering a wide range of music genres and styles. Among Acoustic Pianos, punchy leads, orchestral textures and intricate percussive elements, find the perfect sound to bring your music to life. WHAT'S YOUR PROGRAM? In a Program you can combine any sound with its own insert effects. Save and load your program sets for Live performances and Studio sessions. 9x3 SOUND EFFECTS. MULTIPLY YOUR MOODS. Numa Player provides up to 9 integrated insert effects for each part and a Master effects section. LIVE OR STUDIO. PLAY SMARTER LIKE NEVER BEFORE. Organize the best Live Performarce setup with your devices and MIDI controllers or use Numa Player as an instrument plugin inside your DAW2 to create professional music sequences.

About

AudioKit Synth One J6 + AUv3

This free synthesizer app offers pro-quality analog sounds for creating pads, basses, keys, and leads. It features over 400 presets, a step sequencer, arpeggiators, and real-time FX control, making it suitable for beginners and pros alike. Enhanced accessibility features are included for visually impaired musicians.

Highlights
  • Over 400 presets
  • Step sequencer and arpeggiators
  • Real-time FX control
  • MIDI keyboard support
  • Accessibility features
  • AUv3 plugin support
  • Cross-platform preset sync
Features
Read full description

SYNTH ONE J6 (Inspired by Juno-6 & Jupiter series*) Trusted by over 250,000 iPhone & iPad musicians, Synth One J6 is now on Mac too! Pro Quality. Actually Cool. And Yes, Totally Free. Synth One J6 delivers lush pads, deep basses, classic keys, and vibrant leads that feel truly alive. No ads. No subscriptions. No in-app purchases (unless you want to leave a tip). CREATED BY VOLUNTEERS Musicians, Educators, and Sound Designers over 4 years. Synth One J6 is used in Schools and Higher Education institutions across the world. Just pure, expressive sound designed for creators of every level. EASY TO USE The interface is intuitive and welcoming. Each function has a dedicated slider or knob. Simple for beginners and deep enough for pros. • WORLD WIDE: Synth One J6 is available in English, German, Spanish, French, Italian, Japanese, Portuguese (Brazil), Chinese (Simplified), Chinese (Traditional), Polish, Turkish, Czech, Korean, Hungarian. WHAT MAKES IT DIFFERENT? Major accessibility improvements and Voice Over have been added throughout the app to make Synth One J6 a much more enjoyable instrument for blind and visually impaired musicians. LEARN THE EXCITING STORY: audiokitpro.com/synthonej6 Inspired by legendary synths like the Juno, Jupiter, and DeepMind series. It's not a clone. It's a new classic: built from the ground up with a custom, non-vibe coded sound engine. You’ll hear the warmth, the punch, the vibe. INSTANT INSPIRATION With over 400+ presets, a classic step sequencer, dual arpeggiators, analog-style filters, tape delay, reverb, chorus, 3 LFOs, and real-time FX control, your creativity will never hit a wall. FEATURES: ∙ 400+ Presets and Features Included, ∙ Pro Version Included, Nothing to Buy! ∙ Microtonality and World Scales ∙ Accessibility and Voice over for the Blind and Hearing Impaired ∙ Lush, Expressive Vintage Synthesizer Sound ∙ FX: Glorious Reverb, Analog Tape Delay, Chorus, Crush, and more. ∙ 3 LFOs, over 60+ possible destinations, almost everything can be modulated! LFOs can even modify other LFOs ∙ Control it with a MIDI Keyboard, MIDI Learn to map your controls to the app ∙ Classic Arpeggiator & Vintage-style Step Sequencer, with extra features ∙ Dual Assignable Touch Pads, manipulate FX in real time! ∙ Preset Sync between iPhone, iPad & Mac! Create a sound on one device and continue working with it on another. ∙ Created by volunteers to support music education and access for all PLUGIN ON iOS and MAC: ∙ iOS: Works as a Plug-in Instrument in GarageBand and Logic for iPad, AUM, Cubasis, and MORE! ∙ Mac: Tested in Ableton, GarageBand, Logic, and more! WORKS BY ITSELF ∙ “RECORD” button: Easily record your synth and sound fx, then export WAV files. No other apps needed! MADE FOR MUSIC. MADE FOR EVERYONE. Music should be for everyone. That is why Synth One J6 is truly free. No fees. Please help us share it. Tell a teacher. Tell a student. Tell anyone who’s dreamed of experiencing a vintage synthesizer but lacked the opportunity. Because music belongs to everyone. * LEGAL NOTICES This app has no affiliation or endorsement from Roland Corporation. It is not a clone of the Juno-6, Juno-60, Juno-106, Jupiter-8, or any other synthesizer. While we were inspired by the sound and legacy of these iconic instruments, this is an original creation, built from the ground up. All product names, trademarks, and images mentioned are the property of their respective owners and are used only to describe the inspiration behind this app and for purposes of reference. Their inclusion does not imply any association, affiliation, or endorsement. This project is free and was created solely to promote music creation and education. We sincerely respect the incredible work of Roland and other manufacturers in shaping music history.

Screenshots

Numa Player4 screens
AudioKit Synth One J6 + AUv34 screens

Verdict

The call

The clearest difference is monetization model: Numa Player at free against AudioKit Synth One J6 + AUv3's free with in-app purchases. AudioKit Synth One J6 + AUv3's advantage is update cadence (every 11 days vs every 6 weeks) and review sentiment (94% vs 85%). On price, rating, 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

Both are free to download. Numa Player sells 3 one-off in-app purchases and AudioKit Synth One J6 + AUv3 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

AudioKit Synth One J6 + AUv3 holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 1.2K and 2.5K respectively. Written reviews point the same way: 85% of Numa Player's written reviews are positive against 94% of AudioKit Synth One J6 + AUv3's.

UpkeepUpdate frequency

Numa Player ships an update every 6 weeks, AudioKit Synth One J6 + AUv3 every 11 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

Scorecard5 real differences · 5 level
Numa Player versus AudioKit Synth One J6 + AUv3: the parameters behind the verdict, then further details
ParameterNuma PlayerAudioKit Synth One J6 + AUv3
PriceFreeFree
Rating4.7 (1.2K ratings)4.9 (2.5K ratings) — better
Positive reviews85.2% of reviews94.0% of reviews — better
Number of ratings1.2K2.5K — better
Update frequencyEvery 6 weeksEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS17.015.0 — better
Further details — not scored
Size110 MB84 MB
Age rating4+4+
DeveloperFATAR SRLAudioKit Pro

Customer experience

Numa Player

All ratings1,189 ratings
Positive93.6%
Neutral2.5%
Negative3.9%
Written reviews237 reviews
Positive85.2%
Neutral4.2%
Negative10.5%

AudioKit Synth One J6 + AUv3

All ratings2,510 ratings
Positive99.0%
Neutral0.6%
Negative0.4%
Written reviews167 reviews
Positive94.0%
Neutral1.8%
Negative4.2%

User reviews

Numa Player

From 1.2K App Store ratings

What we love

  • 👍 Great sounds
  • 👍 Excellent sound quality
  • 👍 Stable and reliable
  • 👍 Fantastic free app
  • 👍 Impressive for a free app

Room to improve

  • 🐛 Polyphony issues
  • 🐛 Occasional crashes
  • 🐛 Notes dropping out
  • 🐛 Sound glitching
  • 🐛 Sustain pedal issues

AudioKit Synth One J6 + AUv3

From 2.5K App Store ratings

What we love

  • 🚀 Amazingly inspirational
  • 👍 Awesome and free
  • 👍 Ridiculously good UI
  • 👍 Must have
  • 👍 Great for AUv3

Bugs and requests

Numa Player

Reported bugs

3 issues
  • Crashing issues in GarageBand
  • Incompatibility with some MIDI controllers
  • Sustain pedal causing noise

Requested features

6 requests
  • More types of resonance (aliquot, body, bridge/soundboard)
  • New piano models (Bosendorfer, Yamaha CFX)
  • More instruments (brass, saxes)
  • Ability to save custom patches
  • Ability to resize on-screen keyboard
Show 1 more
  • MIDI learn functionality

AudioKit Synth One J6 + AUv3

No bugs or feature requests surfaced in reviews.

In-app purchases

3 purchases

Numa Player

One-time3
  • VINTAGE PIANOS$17.99
  • GRAN CODA$24.99
  • STAGE D$24.99
5 purchases

AudioKit Synth One J6 + AUv3

One-time5
  • Thanks, Awesome Supporter!$2.99
  • Thanks, Awesome Supporter!$4.99
  • Thanks, Awesome Supporter!$9.99
Show 2 more
  • Thanks, Awesome Supporter!$14.99
  • Thanks, Awesome Supporter!$19.99

Questions

Is Numa Player free?
Numa Player is free to download, with in-app purchases available.
Is AudioKit Synth One J6 + AUv3 free?
AudioKit Synth One J6 + AUv3 is free to download, with in-app purchases available.
Which has better reviews, Numa Player or AudioKit Synth One J6 + AUv3?
AudioKit Synth One J6 + AUv3 is rated higher. Numa Player averages 4.7 out of 5 from 1.2K ratings, while AudioKit Synth One J6 + AUv3 averages 4.9 from 2.5K ratings.
Do Numa Player or AudioKit Synth One J6 + AUv3 have ads?
Neither Numa Player nor AudioKit Synth One J6 + AUv3 shows ads.
Which is updated more often, Numa Player or AudioKit Synth One J6 + AUv3?
Numa Player ships an update every 6 weeks, and AudioKit Synth One J6 + AUv3 every 11 days. Most recently, Numa Player was updated on November 7, 2026 and AudioKit Synth One J6 + AUv3 on November 8, 2026.

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