Comparison

Harmonizer audio effect vs DigiStix 2 AUv3 Plugin

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

Head to head
About

Harmonizer audio effect

This real-time audio effect app shifts pitch and adds harmonies to your original sound. It functions as an Audio Unit plugin or a standalone effect using your device's microphone or external audio interfaces. The pitch shifting preserves the original timing and tempo.

Highlights
  • Real-time pitch shifting
  • Two harmony voices
  • Smooth pitch shift controls
  • Adjustable voice volumes
  • Master reverb effect
  • Standalone mode via microphone
Features
Read full description

Harmonizer is real time audio pitch shifter effect that can mix harmonies into the original signal or run as realtime pitch shifter. The app works as an Audio Unit plugin and can also be used as stand alone real time effect via the device microphone or using iRig or similar device. The pitch shifting does NOT affect timing so the tempo stays the same. Features: - 2 harmony voices - smooth pitch shift controls - half tones and cents - dry volume (original voice) - efx 1 volume (pitch shifted voice 1 volume) - efx 2 volume (pitch shifted voice 2 volume) - reverb (master reverb) - EFX on/off button (in stand alone mode) If you play acoustic instrument you can use headphones without a mic and put the phone close to your instrument so the app will work as realtime effect. Now you can play and sing with harmonies.

About

DigiStix 2 AUv3 Plugin

This AUv3 compatible plugin functions as a drum machine and sampler for DAWs. It offers extensive sample hosting, multi-layer control, advanced pattern editing, and flexible routing for both internal and external effects. Easily create and manipulate drum kits with its redesigned interface and robust features.

Highlights
  • 64 assignable pads with 4 banks
  • Up to 64 samples per drumkit with 5 layers per pad
  • Advanced multi-sample layer control
  • Internal and external effect routing
  • Sophisticated multi-layer Auto Sampler
  • Export patterns as MIDI stems and audio
  • Drag and drop sample functionality
Features
Read full description

DigiStix 2 is an AUv3 compatible drum machine and sampler plugin for your favourite DAW. This new version of DigiStix brings some distinct advantages over its predecessor, most notably the ability to host up to 64 samples per drumkit with 5 layers per pad. The interface has been drastically redesigned for iPad to make better use of full screen mode, allowing a popular MPC style 4x4 pad layout with 4 banks of samples. Digistix 2 also allows greater control over the multi-sample layers, with the ability to individually control the volume levels and pitch of layers as well as global pitch and tune settings all from the new sample window. Previously, each pad had effect sends for the internal reverb and delay effects, but this can now be routed to external busses 9 and 10 for processing using external effects.  The controller editing is now build into the main display and can be edited in place without the need to scroll the interface. It also now supports extra effect controllers. A new context aware control window allows you to quickly change pad settings without the need for popup windows.  DigiStix 2 now supports GM and original DS drum kit layouts, and includes a sophisticated multi-layer Auto Sampler, capable of recording new GM compatible drumkits automatically from your hardware. It is 100% backward compatible with the original app, and can be used as a drop-in replacement. Drag and drop support now allows you to directly drop samples on specific layers, as well as preview and edit them directly. You can create new kits by simply combining banks from existing kits into one mega kit, or use our non destructive referencing to include sounds from other kits. The randomize feature has been enhanced so you can randomize individual instruments or within specific banks. The new continuous MIDI learn mode makes custom mapping a breeze. Patterns can also be exported as MIDI stems for use in other packages including a direct import to Helium clips. You can also export patterns as audio in the latest version. The auto sample feature allows automated recording of GM compatible kits directly from hardware drum machines. The slice editor can also be used for MPC style slicing of audio clips. Features: • 64 Assignable Pads (4 banks of 16 pads). • Advanced Randomize Pattern feature. • Internal & external effect routing. • Mix and match different kits with drum references. • Up to 64 beats per pattern. • Songs up to 255 patterns in length. • Reverse Mode, Triplets and Accents. • Supports Mute Groups. • Multi-layer and Round Robin modes. • DS and GM MIDI Mapping. • 64 channel Mixer. • 8 band EQ. • Randomize Feature. • Sophisticated Auto Sampler • Export loops to audio and MIDI formats. • Looping Mode with Time Stretching. • Build in Delay, Reverb, Overdrive, Bit Crunch and LP/HP Filters. • Paramter Automation from your DAW. • Local and Remove MIDI Sync. • Built in Sampler. • Multi-bus/outputs when using AUM • Multiple Import options. • Melodic Remapping. • MIDI Mapping. • Real time and Step pattern recording. • iTunes and Filer importing of samples. • Files App Drag & Drop Support • Sample Slicer

Screenshots

Harmonizer audio effect3 screens
DigiStix 2 AUv3 Plugin4 screens

Verdict

The call

The clearest difference is price: Harmonizer audio effect at $1.99 against DigiStix 2 AUv3 Plugin's $14.99. Harmonizer audio effect also leads on iOS requirement (10.0 vs 13). DigiStix 2 AUv3 Plugin's advantage is review sentiment (67% vs 23%) and rating (4.5 vs 3.0). On ads, in-app purchases, monetization model 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

Harmonizer audio effect costs $1.99 and DigiStix 2 AUv3 Plugin $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

DigiStix 2 AUv3 Plugin holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: DigiStix 2 AUv3 Plugin has 50 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 23% of Harmonizer audio effect's written reviews are positive against 67% of DigiStix 2 AUv3 Plugin's.

UpkeepUpdate frequency

Harmonizer audio effect ships an update every 8 months, DigiStix 2 AUv3 Plugin every 5 weeks. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
Harmonizer audio effect versus DigiStix 2 AUv3 Plugin: the parameters behind the verdict, then further details
ParameterHarmonizer audio effectDigiStix 2 AUv3 Plugin
Price$1.99 — better$14.99
Rating3.0 (9 ratings)4.5 (50 ratings) — better
Positive reviews23.1% of reviews66.7% of reviews — better
Number of ratings950 — better
Update frequencyEvery 8 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13
Further details — not scored
Size14 MB313 MB
Age rating4+4+
DeveloperAleksandar Mlazev4Pockets.com

Customer experience

Harmonizer audio effect

All ratings9 ratings
Positive44.4%
Neutral0.0%
Negative55.6%
Written reviews13 reviews
Positive23.1%
Neutral0.0%
Negative76.9%

DigiStix 2 AUv3 Plugin

All ratings50 ratings
Positive86.0%
Neutral10.0%
Negative4.0%
Written reviews48 reviews
Positive66.7%
Neutral14.6%
Negative18.8%

In-app purchases

None

Harmonizer audio effect

No in-app purchases

None

DigiStix 2 AUv3 Plugin

No in-app purchases

Questions

Is Harmonizer audio effect free?
Harmonizer audio effect costs $1.99, with no in-app purchases.
Is DigiStix 2 AUv3 Plugin free?
DigiStix 2 AUv3 Plugin costs $14.99, with no in-app purchases.
Which has better reviews, Harmonizer audio effect or DigiStix 2 AUv3 Plugin?
DigiStix 2 AUv3 Plugin is rated higher. Harmonizer audio effect averages 3.0 out of 5 from 9 ratings, while DigiStix 2 AUv3 Plugin averages 4.5 from 50 ratings.
Do Harmonizer audio effect or DigiStix 2 AUv3 Plugin have ads?
Neither Harmonizer audio effect nor DigiStix 2 AUv3 Plugin shows ads.
Which is updated more often, Harmonizer audio effect or DigiStix 2 AUv3 Plugin?
Harmonizer audio effect ships an update every 8 months, and DigiStix 2 AUv3 Plugin every 5 weeks. Most recently, Harmonizer audio effect was updated on October 7, 2026 and DigiStix 2 AUv3 Plugin on October 11, 2026.

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