Comparison

Shimmer AUv3 Audio Plugin vs iFX Rack

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

Head to head
About

Shimmer AUv3 Audio Plugin

Create ethereal soundscapes with this AUv3 compatible audio effect. It combines delay, pitch shifting, reverb, and modulation to add spacious atmosphere to instruments and vocals. Features include beat-synced options and harmonic enhancement.

Highlights
  • AUv3 compatible plugin
  • Combines delay, pitch shifting, and reverb
  • Beat-synced modulation options
  • Harmonic exciter and sustain section
  • Single-screen interface with presets
  • Parameter automation and tempo sync
Read full description

This is an AUv3 compatible effect which must be used as plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand. It supports a modern graphical interface and presets with stereo meters for monitoring signal levels. This shimmer effect is a combination of effects that creates an etherial wall of sound. The effect combines a digital delay and pitch shifter to create multiple harmonies before entering a rich long reverb with controllable filtering. The resulting effect is a monsterously huge sound adding a spacious atmospheric quality to any lead instrument or vocal. The effect also features many beat synced modulation options with various modes of operation such as your basic pans and vibrato effects but including sweeps and morphing harmonies. Finally to give the effect some real 'shimmer' we've added a harmonic exciter and a sustain section which samples and holds on to the sound to pull out and emphesise the harmonics. The effect presents all the most frequently used controls to the user in a single screen, but each effect has it's own distinct set of controls and a total of 7 pre-configured touch pads allowing easy recording of controller data. This plugin allows complete parameter automation and auto synced modulation to master tempo. This is one of a suite of AUv3 compatible plugins which will also soon be available from 4Pockets.

About

iFX Rack

This app offers a virtual analog effects rack for iOS devices, featuring meticulously modeled vintage analog processors. It includes a suite of classic effects and allows for flexible FX chain assignment and MIDI automation.

Highlights
  • Analog modeled virtual effects rack
  • Vintage analog circuit modeling
  • AUv3 support
  • MIDI learnable automation
  • Dynamically drag-able FX chain
  • Includes VKFX effects suite
Features
Read full description

• NEW TalkBox® Effect • NEW CloudVerb (Creatomspheric Reverb) • NEW PhatFilt Filter FX • NEW iFX AMP FX ***New FX Modules not included with ALL FX Expansion iFX Rack is an analog modeled virtual effects rack for your iOS Device. In partnership with Overloud™, we have licensed the, ever so popular VKFX™ effects suite, which is included in the initial purchase. The VKFX suite is a meticulously modeled vintage analog effect processor, which aims to recreate classic vintage hardware using actual analog circuit modeling. It has been the most beloved effects suite ever created for the desktop and our iFX Rack is providing the same exact effects to you along with a recreation of the original factory presets. iFX Rack is your all encompassing effects rack with all of the virtual effects you need in one app. Here is what is included in the initial purchase: 1. Preamp with Two band EQ 2. Stereo Auto-Pan 3. Analog Chorus 4. Tube Amplifier with Three Band EQ 5. Spring Reverb 6. Envelope and Dynamic Filter Wah 7. Opto-Compressor 8. Phase Shifter 9. Overdrive 10. Multi-Tap Tape Delay with Multiple Modes Highlights ▪ AUv3 ▪ 93 Factory Presets from VKFX Library Ported Over ▪ MIDI Learnable Automation ▪ Modulation FX Syncable ▪ Dynamically Drag-able FX Chain Slot Assignment ▪ Highly CPU Efficient coding ▪ Flexible Preset Management with Favorite Options The 17 IAPs below can be purchased as a complete package or individually: ▪ Master Limiter with Soft Clipping and Tube Saturation ▪ 11-Band EQ ▪ SUB Harm - Sub frequency modulator/enhancer ▪ AMP Combo and Speaker Simulation ▪ Degrade - Sample Quality Bit Reduction ▪ Detune - Pitch Shifter Thickener ▪ Rotar - Rotary Speaker/Leslie simulation with physical modeled parameters ▪ DimenD - Dimension D Chorus emulation ▪ DISTORTIT - Nasty Distortion unit ▪ Stereo Widener Chorus - Turns any mono sound into a stereo with slight warm chorusing ▪ ST Widener Enhancer - Enhance stereo signals with Safe Bass frequency option to keep mono and two spread modes ▪ Amp Sim - A convolution IR with popular AMP Simulations ▪ FVerb - Schroeder Algorithmic Reverb ▪ MVerb - Dattorro's figure-of-eight Algorithmic Reverb ▪ Spring Reverb - Rare and vintage spring reverbs ▪ Flanger - Warm Flanger effect ▪ FantasyVerb - A convolution reverb containing iconic spaces and analog reverbs such as: **All other future FX will not be included in the 17 FX Bundle. You will Need to purchase them separately. --------- Terms and Privacy Notices: • EULA Terms of use - https://gospelmusicians.com/EULA.html • Privacy Policy - https://gospelmusicians.com/privacy-policy.html • Terms and Conditions - https://gospelmusicians.com/terms-conditions.html

Screenshots

Shimmer AUv3 Audio Plugin4 screens
iFX Rack4 screens

Verdict

The call

The clearest difference is in-app purchases: Shimmer AUv3 Audio Plugin at none against iFX Rack's 10. Shimmer AUv3 Audio Plugin also leads on rating (4.2 vs 3.8) and ratings volume (31 vs 10). iFX Rack's advantage is update cadence (monthly vs every 8 months) and price ($4.99 vs $7.99). On review sentiment, ads 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

Shimmer AUv3 Audio Plugin costs $7.99 and iFX Rack $4.99 up front. iFX Rack sells 10 one-off in-app purchases. Shimmer AUv3 Audio Plugin asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Shimmer AUv3 Audio Plugin holds the better App Store score, 4.2 against 3.8. Both are backed by a comparable volume of ratings — 31 and 10 respectively. Written reviews complicate that: 64% of Shimmer AUv3 Audio Plugin's written reviews are positive against 70% of iFX Rack's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Shimmer AUv3 Audio Plugin ships an update every 8 months, iFX Rack monthly. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.

Scorecard7 real differences · 3 level
Shimmer AUv3 Audio Plugin versus iFX Rack: the parameters behind the verdict, then further details
ParameterShimmer AUv3 Audio PluginiFX Rack
Price$7.99$4.99 — better
Rating4.2 (31 ratings) — better3.8 (10 ratings)
Positive reviews63.6% of reviews69.6% of reviews — better
Number of ratings31 — better10
Update frequencyEvery 8 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1311.0 — better
Further details — not scored
Size6 MB279 MB
Age rating4+4+
Developer4Pockets.comMIDIculous LLC

Customer experience

Shimmer AUv3 Audio Plugin

All ratings31 ratings
Positive77.4%
Neutral6.5%
Negative16.1%
Written reviews33 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

iFX Rack

All ratings10 ratings
Positive70.0%
Neutral0.0%
Negative30.0%
Written reviews23 reviews
Positive69.6%
Neutral8.7%
Negative21.7%

In-app purchases

None

Shimmer AUv3 Audio Plugin

No in-app purchases

10 purchases

iFX Rack

One-time10
  • Distortit$0.99
  • Amp Combo$1.99
  • FantasyVerb$3.99
Show 7 more
  • iFX Amp$3.99
  • PhatFilt$3.99
  • Talkbox® Effect$3.99
  • IMPULSation for iFX Rack$6.99
  • Phick Analog Thickener$6.99
  • Additional Effects Bundle$7.99
  • CloudVerb$9.99

Questions

Is Shimmer AUv3 Audio Plugin free?
Shimmer AUv3 Audio Plugin costs $7.99, with no in-app purchases.
Is iFX Rack free?
iFX Rack costs $4.99, and also offers in-app purchases.
Which has better reviews, Shimmer AUv3 Audio Plugin or iFX Rack?
Shimmer AUv3 Audio Plugin is rated higher. Shimmer AUv3 Audio Plugin averages 4.2 out of 5 from 31 ratings, while iFX Rack averages 3.8 from 10 ratings.
Do Shimmer AUv3 Audio Plugin or iFX Rack have ads?
Neither Shimmer AUv3 Audio Plugin nor iFX Rack shows ads.
Which is updated more often, Shimmer AUv3 Audio Plugin or iFX Rack?
Shimmer AUv3 Audio Plugin ships an update every 8 months, and iFX Rack monthly. Most recently, Shimmer AUv3 Audio Plugin was updated on November 2, 2026 and iFX Rack on November 11, 2026.

Other comparisons