Comparison

Aerodrums 2 vs SUS4 Chord ID

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

Head to head
About

Aerodrums 2

This app connects to a unique air drumming instrument, allowing users to visualize their drum kit in 3D. It offers features for configuring the instrument, selecting drum sets, playing along to songs, and recording performances.

Highlights
  • Connect to Aerodrums 2 device
  • Visualize drum kit in 3D
  • Configure instrument settings
  • Select drum sets
  • Play along to songs
  • Record performances
  • Create MIDI maps
Features
Read full description

Companion app for the Aerodrums 2 air drumming instrument. Seamlessly connect to your Aerodrums 2 device over WiFi and visualize your drum kit, sticks, and feet in beautifully rendered 3D. The app allows you to: - Configure the Aerodrums 2 instrument - Select your drum set - Play along to songs - Use the built-in metronome - Record your performances - Create MIDI maps - Troubleshoot setup issues - Install new drum sets and other content - Update to the latest firmware - And much more! Aerodrums 2 is an expressive and versatile air drumming instrument. It is a standalone device that uses high-speed optical motion capture technology to accurately track the position of your drumsticks and feet in 3D. Unlike acoustic and traditional electronic drum sets, Aerodrums 2 is lightweight and portable, it is silent when used with headphones, and it takes up no space when not in use. To learn more about Aerodrums 2 visit aerodrums.com

About

SUS4 Chord ID

Identify any chord you hear or play. This app listens to music or uses its built-in keyboard to name chords, displaying common guitar and piano voicings. It supports everything from simple triads to complex jazz chords and logs your identified chords with notes.

Highlights
  • Microphone-based chord detection
  • Built-in keyboard for manual input
  • Chord name display with voicings
  • Supports complex jazz chords
  • Identification history with notes
  • On-device audio analysis
Features
Read full description

What chord is that? Now you know. Play a chord, and SUS4 Chord ID names it. Hold a guitar chord up to the mic, play a few notes into the app's built-in keyboard, and the app returns the chord name and a set of common voicings on guitar and piano. It handles basic major and minor triads just as cleanly as it handles extended jazz chords and ambiguous slash chords. The history tab keeps a log of every chord you have identified, with optional notes so you can annotate as you go. Useful for writing sessions where you are building a progression and want a record of what you played, and useful for theory study when you want to understand what you are hearing. • Mic-based chord detection — play it in; the app names it • Built-in keyboard for manual input • Chord name display with common voicing diagrams • Supports simple triads through extended and altered jazz chords • Identification history with optional notes per entry • Subscribe monthly, or unlock the full SUS4 suite forever: unlimited identifications, voicing diagrams for common chords, and annotated history All audio analysis runs on your device. Your music stays private. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Aerodrums 24 screens
SUS4 Chord ID4 screens

Verdict

The call

The clearest difference is rating: Aerodrums 2 at 4.5 against SUS4 Chord ID's 1.0. Aerodrums 2 also leads on in-app purchases (none vs 1) and ratings volume (4 vs 1). SUS4 Chord ID's advantage is update cadence (fortnightly vs every 2 months). On price, 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

Both are free to download. SUS4 Chord ID sells 1 in-app purchase, starting at $2.99 per month. Aerodrums 2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Aerodrums 2 holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Aerodrums 2 ships an update every 2 months, SUS4 Chord ID fortnightly. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 4 level
Aerodrums 2 versus SUS4 Chord ID: the parameters behind the verdict, then further details
ParameterAerodrums 2SUS4 Chord ID
PriceFreeFree
Rating4.5 (4 ratings) — better1.0 (1 ratings)
Positive reviews0.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS13.0 — better16.0
Further details — not scored
Size146 MB21 MB
Age rating9+4+
DeveloperAerodrumsThePaulSmith

Customer experience

Aerodrums 2

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

SUS4 Chord ID

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Aerodrums 2

No in-app purchases

1 purchases

SUS4 Chord ID

Subscriptions1
  • SUS4 Chord ID Pro Monthly$2.991 Month

Questions

Is Aerodrums 2 free?
Aerodrums 2 is free to download, with no in-app purchases.
Is SUS4 Chord ID free?
SUS4 Chord ID is free to download, with in-app purchases available.
Which has better reviews, Aerodrums 2 or SUS4 Chord ID?
Aerodrums 2 is rated higher. Aerodrums 2 averages 4.5 out of 5 from 4 ratings, while SUS4 Chord ID averages 1.0 from 1 ratings.
Do Aerodrums 2 or SUS4 Chord ID have ads?
Neither Aerodrums 2 nor SUS4 Chord ID shows ads.
Which is updated more often, Aerodrums 2 or SUS4 Chord ID?
Aerodrums 2 ships an update every 2 months, and SUS4 Chord ID fortnightly. Most recently, Aerodrums 2 was updated on October 15, 2026 and SUS4 Chord ID on October 12, 2026.

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