JAX ESSENTIALS vs BTS FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JAX ESSENTIALS
This audio effect plugin offers a multi-stage phaser modulation with allpass filters for dynamic soundscapes. It's compatible across Apple devices and integrates with popular music production software.
- Multi-stage phaser modulation
- Allpass filter design
- LFO for depth and speed modulation
- Cross-device preset sharing
- Includes ~200 factory presets
- Resizable and adaptive interface
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( 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: https://audio.digitster.com 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 11.0++ 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.
BTS FX
This audio effect plugin offers a versatile multi-effect suite for music production. It features a bitcrusher, distortion, reverb with a freeze function, and a limiter, all controllable within compatible DAWs.
- Bitcrusher with adjustable rate and bit
- Distortion module with various algorithms
- Reverb module with freeze function
- Brick-wall limiter
- Oversampling module (2x, 4x, 8x)
- Stereo/Mode processing
- Parameter randomizer
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BTS FX emerges as a dynamic multi-effect plugin, incorporating a diverse set of modules. Available on as Auv3 audio effect or can be loaded in IAA. App requires compatible Auv3 or IAA host (DAW) to load an effect. Among its Main features are: Pre/Post Moog Ladder Filter Bitcrusher with adjustable Rate and Bit controls Distinctive Distortion Module offering various reshaping algorithms. The plugin boasts a lush Reverb Module with a unique Freeze function , complemented by a Brick-wall Limiter Module and convenient Input/Output Gain adjustments. Additionally the Oversampling module provides 2x, 4x, and 8x factors, featuring both polyphase allpass IIR and FIR versions with latency compensation. Further enhancing its capabilities, BTS includes Stereo/Mode processing and a Parameter Randomiser for added creative exploration. Preset Manager, etc.
Screenshots
Verdict
The clearest difference is update cadence: BTS FX at every 2 days against JAX ESSENTIALS's every 2 weeks. BTS FX also leads on chart position (#197 vs unranked) and ratings volume (3 vs 1). JAX ESSENTIALS's advantage is price ($4.99 vs $9.99). On rating, 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
JAX ESSENTIALS costs $4.99 and BTS FX $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for JAX ESSENTIALS against 5.0 for BTS FX. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
JAX ESSENTIALS ships an update every 2 weeks, BTS FX every 2 days. The most recent releases landed on November 14, 2026 and November 3, 2026 respectively.
| Parameter | JAX ESSENTIALS | BTS FX |
|---|---|---|
| Price | $4.99 — better | $9.99 |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #197 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Jens Guell | Dmytro Kiro |
Customer experience
JAX ESSENTIALS
BTS FX
In-app purchases
JAX ESSENTIALS
No in-app purchases
BTS FX
No in-app purchases






