Comparison

D0TS Echoplex vs D'Chords

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

Head to head
About

D0TS Echoplex

Recreate the iconic "Echoplex" song by Nine Inch Nails with this music sequencer. Experience the same visuals and sounds used during live performances, allowing you to play the drum line on your device.

Highlights
  • Music sequencer
  • Recreate "Echoplex" song
  • Live performance tool
  • Authentic visuals and sounds
  • Drum line recreation
Read full description

D0TS Echoplex is a basic music sequencer designed to let you perform the Nine Inch Nails song “Echoplex”. During the “Lights In The Sky” tour, the band used to play this song with a giant sequencer at the background of the stage. D0TS Echoplex gives you the same visuals and sounds, so you can easily recreate the drum line, right in your hand. Feel free to use this application as a music instrument to play the song live by yourself, or with your band. All the audio files are extracted from the Nine Inch Nails album “The Slip”, available at nin.com under a creative commons attribution non-commercial share alike license.

About

D'Chords

Access a vast library of over 7800 guitar chords with detailed fingerings and virtual fretboard displays. Explore chords in various positions, hear them played, and switch between left and right-handed views.

Highlights
  • Over 7000 guitar chords
  • Virtual fretboard display
  • Multiple fretboard positions
  • Strum and hear chords
  • Left and right-handed diagrams
Read full description

D'Chords is the quintessential hand-held guitar chord library brought to you by D'Addario & Company, Inc., the world's largest designer, manufacturer and distributor of musical instrument accessories. D'Chords is a companion to D'Addario's complete guitar scale and arpeggio app, "D'Scales." The D'Addario D'Chords puts a comprehensive and accurate library of over 7800 guitar chords into the palm of your hand. The D'Chords displays the notes and fingerings on a virtual fretboard, and allows you to view each chord selected in every position up and down the guitar neck. You can even strum the virtual strings to play and hear each chord in pristine audio. The library is separated into Root, Chord Type and Chord Variants, allowing you to navigate to any chord easily and quickly. The D'Chords even has a "lefty mode" for the often-ignored left handed guitarist. Enjoy exploring and expanding your chord vocabulary with this easy-to-use, comprehensive library. FEATURES: - More than 7000 chords in the Library - Displays notes and fingerings on a virtual fretboard - Displays chords in multiple fretboard positions - Strum strings to play and hear chord - Includes left-and right-handed diagrams D'Chords was developed by Audiofile Engineering, a leading developer of audio software for Mac OS X and the iPhone.

Screenshots

D0TS Echoplex2 screens
D'Chords3 screens

Verdict

The call

The clearest difference is rating: D0TS Echoplex at 3.1 against D'Chords's 2.6. D0TS Echoplex also leads on ratings volume (412 vs 8) and review sentiment (73% vs 63%). D'Chords's advantage is update cadence (every 3 months vs every 11 months) and iOS requirement (8.0 vs 14.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

D0TS Echoplex holds the better App Store score, 3.1 against 2.6. That said, the two scores are not equally well evidenced: D0TS Echoplex has 412 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 73% of D0TS Echoplex's written reviews are positive against 63% of D'Chords's.

UpkeepUpdate frequency

D0TS Echoplex ships an update every 11 months, D'Chords every 3 months. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
D0TS Echoplex versus D'Chords: the parameters behind the verdict, then further details
ParameterD0TS EchoplexD'Chords
PriceFreeFree
Rating3.1 (412 ratings) — better2.6 (8 ratings)
Positive reviews72.7% of reviews — better63.1% of reviews
Number of ratings412 — better8
Update frequencyEvery 11 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS14.08.0 — better
Further details — not scored
Size2 MB27 MB
Age rating4+4+
DeveloperVincent TourraineD'Addario & Company, Inc.

Customer experience

D0TS Echoplex

All ratings412 ratings
Positive44.2%
Neutral15.8%
Negative40.0%
Written reviews99 reviews
Positive72.7%
Neutral10.1%
Negative17.2%

D'Chords

All ratings8 ratings
Positive25.0%
Neutral37.5%
Negative37.5%
Written reviews160 reviews
Positive63.1%
Neutral10.0%
Negative26.9%

User reviews

D0TS Echoplex

From 412 App Store ratings

What we love

  • 👍 Sweet nostalgia
  • 👍 Thank you for updating
  • 👍 Awesome
  • 👍 Fun to play around with
  • 👍 Great app for any NIN fan

Room to improve

  • 🐛 Instruments not working
  • 🐛 Lags like crazy
  • 🐛 Terrible execution
  • 🐛 Samples play twice
  • 🐛 Out of sync

D'Chords

From 8 App Store ratings

What we love

  • 🚀 Huge chord library
  • 👍 Easy to use interface
  • 🎨 Beautiful visuals
  • 🔊 Ability to hear chords
  • 🤖 Supports left-handed mode

Room to improve

  • 🐛 Audio issues (no sound, white noise)
  • 🔀 Inconsistent navigation/controls
  • 🚫 Lack of support for alternative tunings
  • 🆕 Outdated app, not updated for newer iOS versions

Bugs and requests

D0TS Echoplex

Reported bugs

3 issues
  • Guitar, bass, and vocals don't match up
  • Vocals and other tracks don't sync with beat
  • App crashes or stops working

Requested features

5 requests
  • Enable original sound samples and selection queues
  • Add ability to change tempo
  • Add more drum sounds and samples
  • Add BPM display
  • Add more songs and instruments

D'Chords

Reported bugs

3 issues
  • Crashes on startup
  • Chord audio out of tune
  • Unresponsive controls

Requested features

5 requests
  • Ability to create and save custom chords
  • Chord progression suggestions
  • Interval-based chord voicings
  • Capo support
  • iPad version

In-app purchases

None

D0TS Echoplex

No in-app purchases

None

D'Chords

No in-app purchases

Questions

Is D0TS Echoplex free?
D0TS Echoplex is free to download, with no in-app purchases.
Is D'Chords free?
D'Chords is free to download, with no in-app purchases.
Which has better reviews, D0TS Echoplex or D'Chords?
D0TS Echoplex is rated higher. D0TS Echoplex averages 3.1 out of 5 from 412 ratings, while D'Chords averages 2.6 from 8 ratings.
Do D0TS Echoplex or D'Chords have ads?
Neither D0TS Echoplex nor D'Chords shows ads.
Which is updated more often, D0TS Echoplex or D'Chords?
D0TS Echoplex ships an update every 11 months, and D'Chords every 3 months. Most recently, D0TS Echoplex was updated on September 20, 2026 and D'Chords on September 22, 2026.

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