Comparison

Polly vs EchoSketch

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

Head to head
About

Polly

Explore complex rhythms with a versatile metronome app. It offers five tracks for accents, subdivisions, polyrhythms, and hypertuplets, with options to mute tracks for customized assistance. Designed for accessibility, it supports VoiceOver and offers stereo or mono audio.

Highlights
  • Polyrhythm exploration
  • Five customizable tracks
  • Accent and subdivision support
  • VoiceOver compatibility
  • Background audio playback
  • MIDI output for DAWs
Features
Read full description

Polly is designed as a polyrhythm explorer, and also works great as a standard metronome! Use Polly's five tracks for: • Accents • Subdivisions • Polyrhythms • Hypertuplets Each track can be muted, so Polly can provide as much or as little help as you want. Polly is accessible, providing: • Voiceover support • Accessible color theme • Stereo or Mono audio Polly supports your iPhone, iPad, and Apple Silicon Mac with: • Background use • Light and Dark modes • Bluetooth Audio • Keyboard shortcuts • Multi-tasking support MIDI Support • Connect Polly on your iOS or iPadOS device to your computer to drive drum kits in your computer's digital audio workstation software • Use Polly on your Apple Silicon Mac to send General MIDI Percussion to your digital audio workstation drum kits • Use Polly to drive MIDI drum machines

About

EchoSketch

Shape delay and reverb effects in real-time with a playable X/Y performance surface. Explore four distinct delay types and multiple reverb options, with extensive parameter control for unique sound morphing. Works as a standalone app or an Audio Unit plugin.

Highlights
  • X/Y performance surface for real-time sound shaping
  • Four distinct delay types: digital, analog, reverse, ping-pong
  • Spring, plate, and hall convolution reverb
  • Modulation and tone control for echoes
  • HOLD, LIFT, FREEZE, and MOTION performance gestures
  • Standalone app and AUv3 plugin compatibility
Features
Read full description

EchoSketch turns delay and reverb into a live, playable instrument. Shape your sound in real time using a responsive X/Y performance surface designed for intuitive touch expression. At its core are four great-sounding delays: digital, analog, ping-pong, and reverse. The range for each parameter and the XY axes direction can be set independently, allowing you to easily morph between sounds. It works as an Audio Unit plugin or standalone — iOS or Mac. Comprehensive Delays • Digital (patterned after a legendary '80s rack delay), Analog (warm, with tape-style pitch glide), Reverse, and Left/Right Ping-Pong • Delay times can sync to tempo or be set in milliseconds • Feedback features delay-dependent tone shaping — bright for short delays and darker for long ones Convolution Reverb • Stereo or mono Spring, Plate, and Hall • Reverb path is separate from the delay (same as vintage tape echo units), so repeats don’t get washed out Modulation and Filter • Analog-style modulation for chorused, warbly pitch echoes • Tone control — darken or brighten delays, with a center detent for flat Designed for Hands-On Performance • HOLD / LIFT — leave the XY cursor in place, or touch the pad for momentary delay sounds • FREEZE — set the current feedback into an infinite loop and play over it • MOTION — record a gesture on the XY pad and loop it Presets and More • Presets are transferable between hosts • Two looks — light "Trail" and dark "Glow" • Works standalone with live audio or as an AUv3 plugin • Universal — iPad/iPhone also gets you the Mac version — one purchase • Mac: after installing, open EchoSketch once to use it as a plugin in your DAW • Works in AUM, AudioBus, GarageBand, Logic, and other AUv3 hosts

Screenshots

Polly3 screens
EchoSketch4 screens

Verdict

The call

The clearest difference is price: Polly at $0.99 against EchoSketch's $7.99. EchoSketch's advantage is update cadence (every 2 days vs every 9 months). On rating, ratings volume, ads and in-app purchases 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

Polly costs $0.99 and EchoSketch $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Polly against 5.0 for EchoSketch. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Polly ships an update every 9 months, EchoSketch every 2 days. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 8 level
Polly versus EchoSketch: the parameters behind the verdict, then further details
ParameterPollyEchoSketch
Price$0.99 — better$7.99
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings22
Update frequencyEvery 9 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.0 — better17
Further details — not scored
Size5 MB5 MB
Age rating4+4+
Developer591 Group Ltd.Avi Bortnick

Customer experience

Polly

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

EchoSketch

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Polly

No in-app purchases

None

EchoSketch

No in-app purchases

Questions

Is Polly free?
Polly costs $0.99, with no in-app purchases.
Is EchoSketch free?
EchoSketch costs $7.99, with no in-app purchases.
Which has better reviews, Polly or EchoSketch?
Polly and EchoSketch are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do Polly or EchoSketch have ads?
Neither Polly nor EchoSketch shows ads.
Which is updated more often, Polly or EchoSketch?
Polly ships an update every 9 months, and EchoSketch every 2 days. Most recently, Polly was updated on October 16, 2026 and EchoSketch on October 14, 2026.

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