Comparison

JAX ESSENTIALS vs World Controller

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

Head to head
About

JAX ESSENTIALS

This audio effect plugin offers a multi-stage phaser with adjustable depth and speed for dynamic sound nuances. Create unique vocal effects or sweeping soundscapes with numerous presets and custom options.

Highlights
  • Multi-stage phaser effect
  • Low frequency oscillator modulation
  • Adjustable depth and speed
  • Cross-device preset sharing
  • 200+ factory presets
  • Custom preset export/import
  • Universal build for iOS, iPadOS, macOS, visionOS
Features
Read full description

( THIS IS AN AUDIOUNIT. AudioUnits are app extensions, requiring any audio host application to perform. ) Use the same AudioUnits across all modern Apple devices, including the iPhone and the Mac (Apple Silicon). Native MacOS apps like GarageBand, MainStage 3 and Logic Pro X are fully supported. Any 3rd-party AUv3 supporting host should be able to host the plugin too. The JAX ESSENTIAL SERIES Phaser is a multi stage phaser modulation effect that uses multiple allpass filters, to produce all kinds of the famous phaser effect. A low frequency oscillator modulates depth and speed of the filter modulation on both stereo channels for various living and moving sound nuances. Make static sounding voices more interesting or create sweaping special effects. You may share the presets for this effect across all your supported devices. Around 200 factory presets are included, you can make and export/import your own. The complete manual is included and can be previewed on our support website. For advanced usage (i.e. mastering and exciting), we recommend to select the phaser from our SELECTIVE RANGE SERIES, which allows to limit the frequency range for processing. This build is truly 'universal', meaning, the audio unit is available for: - iOS (all actual iPhones) - iPadOS (all actual iPads) - macOS (Apple Silicon) - visionOS (Apple Vision Pro) Requirements: MacOS 10.15++ iOS 14.0++ Behaviour on all devices is identical. The parametric interface is resizeble and adopts to any screen size and orientation. This especially applies to Logic Pro X and all hosts with adjustable window sizes on all platforms. Display contrast can be adjusted freely and is now saved with each preset.

About

World Controller

Features
Read full description

World Controller was written to solve a particular problem I encountered in live performance. I needed a way to choose a Digital Performer chunk simultaneously on multiple computers, AND select a corresponding MainStage patch to play live parts against a track. Specifically, World Controller uses a wireless network MIDI session to control Digital Performer and MainStage at the same time. Any Mac Laptop on the same wifi network that subscribes to the wireless MIDI session (set up in Audio MIDI Setup) can respond to commands sent from World Controller, perfect for simultaneous control of multiple computers in a redundant playback situation. You can create a set list that can be edited and re-ordered any way you like. Each set list item provides a button to select a particular Digital Performer chunk, and another button to select a MainStage patch. There are also transport controls for Digital Performer playback as well (sent as Patch change commands to the DP Remote Commands), allowing you to start, stop and rewind the current chunk to zero. This app is optimized for use with these two pieces of software, and it is the missing link for me that enables seamless playback in a complex live performance situation. More features will come in subsequent versions, but right now, all the commands sent wirelessly are patch change commands on channels 15 and 16 (MainStage and DP respectively). Any musician on stage can now run the app and be connected via peer to peer networking to get live updates of the set list. Everybody see the same list and sees what song is cued up to be played next. There's nothing else out there that does this one specific thing!

Screenshots

JAX ESSENTIALS4 screens
World Controller1 screens

Verdict

The call

The clearest difference is price: World Controller at Free against JAX ESSENTIALS's $4.99. World Controller also leads on iOS requirement (12 vs 14.0). JAX ESSENTIALS's advantage is update cadence (fortnightly vs every 6 months). On ads, in-app purchases and device support 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

World Controller is free to download; JAX ESSENTIALS costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

JAX ESSENTIALS ships an update fortnightly, World Controller every 6 months. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 6 level
JAX ESSENTIALS versus World Controller: the parameters behind the verdict, then further details
ParameterJAX ESSENTIALSWorld Controller
Price$4.99Free — better
Rating2.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyFortnightly — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.012 — better
Further details — not scored
Size33 MB7 MB
Age rating4+4+
DeveloperJens GuellVandalay Industries

In-app purchases

None

JAX ESSENTIALS

No in-app purchases

None

World Controller

No in-app purchases

Questions

Is JAX ESSENTIALS free?
JAX ESSENTIALS costs $4.99, with no in-app purchases.
Is World Controller free?
World Controller is free to download, with no in-app purchases.
Do JAX ESSENTIALS or World Controller have ads?
Neither JAX ESSENTIALS nor World Controller shows ads.
Which is updated more often, JAX ESSENTIALS or World Controller?
JAX ESSENTIALS ships an update fortnightly, and World Controller every 6 months. Most recently, JAX ESSENTIALS was updated on October 4, 2026 and World Controller on October 2, 2026.

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