JAX ESSENTIALS vs SL950
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.
SL950
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SL950 is a Sample Librarian for the AKAI S900 and S950 samplers. The application doesn't make any sound by itself and is designed to communicate with the hardware. The application needs a MIDI connection to the hardware to make changes. Please refer to the included manual to learn more. - Edit programs - Upload samples - Generate new programs by chopping samples Drum Machine Funk is not affiliated with AKAI and is an independent developer of innovative apps for your favorite samplers and synthesizers.
Screenshots
Verdict
The clearest difference is price: JAX ESSENTIALS at $4.99 against SL950's $24.99. SL950's advantage is update cadence (every 4 days vs every 2 weeks). On ads, in-app purchases, device support and iOS requirement 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 SL950 $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.
JAX ESSENTIALS ships an update every 2 weeks, SL950 every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | JAX ESSENTIALS | SL950 |
|---|---|---|
| Price | $4.99 — better | $24.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Jens Guell | Delta Seven Kft. |
In-app purchases
JAX ESSENTIALS
No in-app purchases
SL950
No in-app purchases









