JAX SR vs Ember
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JAX SR
This audio effect app allows selective frequency range processing for modulation effects. It offers a classic phaser with MIDI control and dynamic mix adjustment, preventing negative side effects from full-range processing. It requires a host application to function.
- Selective frequency range processing
- Classic phaser modulation
- Optional MIDI control
- Dynamic mix adjustment
- Universal app for Apple devices
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The manual is here : https://audio.digitster.com/wp-content/uploads/2024/05/JAX-SR-Phaser-Manual.pdf The JAX SR Series are AudioUnits (AUv3), which allow to select a frequency range for effect processing. This one provides a classic phaser modulation effect with optional direct MIDI control assignment to the parameters. If (especially) modulation effects are applied to the entire frequency range, this usually will introduce negative side effects. The JAX [SR] Series allow a selective frequency range and dynamic adjustment of the mix easily. More information can be found on the product website at: https://audio.digitster.com/ Please note, that AudioUnits (AUv3) require a supporting host application to perform. This build (like all our latest releases) is truly 'universal', meaning, the audio unit is available for: - MacOS (Apple Silicon) - iOS (all actual iPhones) - iPadOS (all actual iPads) - visionOS (Apple Vision Pro) Requirements: MacOS 10.15++ iOS 14.0++
Ember
This app offers a versatile guitar drive experience, combining overdrive, fuzz, and compression into a single unit. It provides three distinct sound profiles and extensive control over tone, bite, and bias for studio or stage use.
- Integrated overdrive, fuzz, and compression
- Three distinct sound voices: Warm, Drive, Ravage
- Adjustable drive, tone, bite, and bias controls
- AUv3 support for hosts like GarageBand and Logic Pro
- MIDI learn for hands-free control
- Standalone app for practice and recording
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Ember is a full drive chain in one pedal — not another single-circuit distortion. A gritty, tweed-flavored overdrive sits on the bottom, a filthy fuzz runs layered on top, and compression is built in. It's the stacked-amps sound that normally takes three pedals and an afternoon of gain-staging, dialed in with one knob. THREE VOICES WARM — distortion the way it was first discovered: a pushed vintage amp with sliced speaker cones. Raw, retro, and touch-sensitive. Roll BITE up and it tips into blown-speaker sizzle with a starved-supply quiver in the note. DRIVE — everything, more. A doubled, dual-amp crunch straight out of the 1980s. The sustain sings, sizzles, crackles, and rings — and stays articulate. Chords keep their edges; every note in a run stays clear. RAVAGE — unhinged. The amps are on fire and the ship is going down. Stomp BOOST and single notes bloom into screaming, feedback-laced sustain that hangs on for the better part of a minute. Pinch harmonics, smoldering solos, sixties-fuzz recklessness at modern gain. WHAT IT'S FOR • Recording guitar direct — a finished, layered drive tone with no amp, no mics, no reamping. • Replacing a drive + fuzz + compressor stack, and the hour spent making them agree. • Leads that hold: BOOST adds gain, presence, and a sustain compressor that carries the note for you. • Practice anywhere — standalone app, plug in and play. CONTROLS THAT MATTER • DRIVE — one knob from edge-of-breakup to inferno. The molten orb burns hotter as you push it — and as you play harder. • TONE — dark and thick to bright and cutting, with a speaker-style rolloff that keeps fizz out. • BITE — round and smooth to sharp and shredded. • BIAS — starve it for choked, dying-battery textures. • IN / OUT / MIX for gain staging and parallel blends, stereo or mono, click-free bypass. ON STAGE AND IN THE STUDIO • AUv3 for GarageBand, Logic Pro, AUM, and any Audio Unit host. • MIDI learn on everything — knobs, voices, BOOST, bypass, even program-change recall of specific presets. A MIDI footswitch runs the whole pedal hands-free. • Factory presets plus custom presets. One purchase. Mac, iPad, and iPhone.
Screenshots
Verdict
The clearest difference is price: Ember at $1.99 against JAX SR's $6.99. On rating, ratings volume, update cadence 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
JAX SR costs $6.99 and Ember $1.99 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 SR against 5.0 for Ember. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
JAX SR ships an update every 4 weeks, Ember monthly. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.
| Parameter | JAX SR | Ember |
|---|---|---|
| Price | $6.99 | $1.99 — better |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 4 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 21 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Jens Guell | Joshua Rideout |
Customer experience
JAX SR
Ember
In-app purchases
JAX SR
No in-app purchases
Ember
No in-app purchases









