Comparison

ShakeGuitar vs FilterMorph AUv3 Audio Plugin

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

Head to head
About

ShakeGuitar

Experience simulated guitar playing on your iPhone or iPod Touch. Adjust melody difficulty in real-time by shaking your device, or fine-tune levels via the control panel. Ideal for musical novices seeking an interactive music experience.

Highlights
  • Simulated guitar playing experience
  • Motion-based difficulty adjustment
  • Real-time melody morphing
  • Interactive control panel
  • Suitable for musical novices
Features
Read full description

The ShakeGuitar is an interactive music system for use with iPhone/iTouch that enables users to enjoy the simulated experience of guitar playing, even if they are musical novices. Shaking the iPhone/iTouch with varying degrees of strength influences the level of guitar-melody difficulty, which smoothly changes in real-time from soft backing to heavy soloing. You can set each level thoughout the music by touching or draging on the level control panel.  
 The ShakeGuitar is based on a melody morphing method developed by Masatoshi Hamanaka. Further information can be found at http://gttm.jp/hamanaka/en/shakeguitar/

About

FilterMorph AUv3 Audio Plugin

This audio effect plugin offers a unique approach to filtering, allowing seamless morphing between different filter types. It integrates with DAWs and provides advanced control through touchpads and modulation.

Highlights
  • Transitional filter morphing
  • Dual touch-pad parameter control
  • Real-time and beat-synced automation
  • Integrated overdrive and tape delay
  • Configurable modulation section
  • Preset management
Read full description

This is a AUv3 compatible audio effect which can be used as plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand and NOT a standalone app. It supports a modern graphical interface and presets with stereo meters for monitoring signal levels. The FilterMorph is one of our most fun, interesting, experimental and yet incredibly useful AUv3 plugins to date. It takes the concept of a traditional audio filter and pairs it with overdrive, bit crunching and tape delay to perform some incredibly neat real-time or beat synced automation effects. At the heart of the effect are a set of transitional filters (low pass, high pass, band pass, notch and formant filter) which you can assign to the Cutoff Control. The twist here is that you can assign different filters to each end of the frequency spectrum and morph between them to achieve a much more interesting results. So for example you can use a LP filter for low frequencies and a BP filter for high frequencies, and the frequency dial will smoothly transition between the two. The main interface of the effect scrolls to reveal a set of two finger touch-pads, each of which responds to one of more fingers. Each pad can be assigned two of several parameters, one to the vertical axis, and the other to the horizontal. This allows you to control up to 4 knobs in real-time using only two fingers. A glide control allows you to control the rate of change so you can create those gentle sweeps without the effort. But it doesn't stop there... we also include effects such as overdrive, bit shifter and tape delay and these parameters can also be freely assigned to the finger pads. A configurable modulation section also allows you to automate panning or vibrato and assign various envelope shapes. Hold multiple fingers down on a pad and the play cursor will fly between your fingers at a specified speed. Press the HOLD button and you can then release your fingers and have them playback a set pattern. Press the SYNC TO BEAT button and the play cursor will move from one point to another at set beat intervals. Use the FOLLOW feature to follow finger movements etc. The build in Tape Delay allows control over delay time, feedback and level, but the advantage of this type of delay is you get the warping pitch shifting effects as you change the delay time. This allows for some very interesting effects, especially when applied to strings or held chords. This is an essential tool for those wanting to add a creative or experimental twist to any form of electronic composition, adding a few extra dynamics into your mix with very little effort. This is one of a suite of AUv3 compatible plugins which will also soon be available from 4Pockets.

Screenshots

ShakeGuitar3 screens
FilterMorph AUv3 Audio Plugin4 screens

Verdict

The call

The clearest difference is review sentiment: FilterMorph AUv3 Audio Plugin at 100% against ShakeGuitar's 55%. FilterMorph AUv3 Audio Plugin also leads on rating (4.2 vs 2.1) and update cadence (every 3 months vs every 62 months). ShakeGuitar's advantage is price (Free vs $5.99) and ratings volume (167 vs 5). 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

CostPrice · In-app purchases · Ads · Monetization

ShakeGuitar is free to download; FilterMorph AUv3 Audio Plugin costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FilterMorph AUv3 Audio Plugin holds the better App Store score, 4.2 against 2.1. That said, the two scores are not equally well evidenced: ShakeGuitar has 167 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 55% of ShakeGuitar's written reviews are positive against 100% of FilterMorph AUv3 Audio Plugin's.

UpkeepUpdate frequency

ShakeGuitar ships an update every 62 months, FilterMorph AUv3 Audio Plugin every 3 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
ShakeGuitar versus FilterMorph AUv3 Audio Plugin: the parameters behind the verdict, then further details
ParameterShakeGuitarFilterMorph AUv3 Audio Plugin
PriceFree — better$5.99
Rating2.1 (167 ratings)4.2 (5 ratings) — better
Positive reviews54.5% of reviews100.0% of reviews — better
Number of ratings167 — better5
Update frequencyEvery 62 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13
Further details — not scored
Size65 MB9 MB
Age rating4+4+
Developernewforestar co,.ltd4Pockets.com

Customer experience

ShakeGuitar

All ratings169 ratings
Positive21.9%
Neutral9.5%
Negative68.6%
Written reviews22 reviews
Positive54.5%
Neutral13.6%
Negative31.8%

FilterMorph AUv3 Audio Plugin

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ShakeGuitar

No in-app purchases

None

FilterMorph AUv3 Audio Plugin

No in-app purchases

Questions

Is ShakeGuitar free?
ShakeGuitar is free to download, with no in-app purchases.
Is FilterMorph AUv3 Audio Plugin free?
FilterMorph AUv3 Audio Plugin costs $5.99, with no in-app purchases.
Which has better reviews, ShakeGuitar or FilterMorph AUv3 Audio Plugin?
FilterMorph AUv3 Audio Plugin is rated higher. ShakeGuitar averages 2.1 out of 5 from 167 ratings, while FilterMorph AUv3 Audio Plugin averages 4.2 from 5 ratings.
Do ShakeGuitar or FilterMorph AUv3 Audio Plugin have ads?
Neither ShakeGuitar nor FilterMorph AUv3 Audio Plugin shows ads.
Which is updated more often, ShakeGuitar or FilterMorph AUv3 Audio Plugin?
ShakeGuitar ships an update every 62 months, and FilterMorph AUv3 Audio Plugin every 3 months. Most recently, ShakeGuitar was updated on November 6, 2026 and FilterMorph AUv3 Audio Plugin on November 2, 2026.

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