Comparison

Chordex vs Autochords

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

Head to head
About

Chordex

Explore musical chord theory with this app. It allows you to view chord notes and degrees, play them with a tone generator, or discover chords by highlighting notes on a virtual keyboard. The app intelligently suggests chords based on your input.

Highlights
  • Chord note and degree display
  • Built-in tone generator
  • Chord discovery by note selection
  • Intelligent chord matching
  • Listen to suggested chords
Features
Read full description

Chordex places a wealth of musical chord theory at your fingertips. It offers two modes of operation. In the first, you can select a chord and the app will list the notes in that chord, telling you both their names and their degree on the scale. You can also play the chord or individual notes on the built in tone generator. The second mode allows you to highlight notes on a virtual keyboard, while the app lists the chords that contain those notes in an order based on both how well they match and their obscurity. For example, if you select D and F, it is fair to say that D minor is a better fit than A flat diminished 7th, but both are options. Again, this mode lists the notes that make up each of the suggested chords and offers you the chance to listen to them all.

About

Autochords

This app serves as a songwriting aid, offering chord progressions and musical inspiration. It allows users to explore different moods and instruments like guitar, piano, and ukulele to find the perfect sound for their songs. Advanced features are available through an in-app purchase.

Highlights
  • Chord progression generation by mood
  • Guitar, piano, and ukulele chord diagrams
  • Listen to progressions on chosen instruments
  • Play along to full progressions
  • Alternative progression suggestions
  • Customizable progressions (PRO)
Features
Read full description

Autochords is the ultimate songwriting cheat sheet and inspiration machine. Learn how to play chords on guitar, piano, and ukulele. Experiment with various music styles. Just pick a mood and Autochords will show you what to play for your main progression. Play along or just have a listen until you find the perfect chord progression for you. Autochords also suggests “Alternative progressions” that you can use for other sections of the song, like a bridge or backing for a solo. ## Features ## • Dozens of different built-in moods to choose from. • Guitar, Piano, and Ukulele chord diagrams. • Listen to how progressions sound on your chosen instrument. • Play along to full chord progressions. With the PRO in-app-purchase: • Unlock even more progressions. • Build and customize your own progressions. • Export to MIDI. • Keep track of your favorites. • Change the tempo. • Switch between color themes. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Chordex2 screens
Autochords4 screens

Verdict

The call

The clearest difference is review sentiment: Autochords at 84% against Chordex's 33%. Autochords also leads on price (Free vs $0.99) and rating (4.7 vs 4.0). Chordex's advantage is in-app purchases (none vs 4). On ads, 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

Autochords is free to download; Chordex costs $0.99 up front. Autochords sells 4 in-app purchases, starting at $0.99 per 7 days. Chordex asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Autochords holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Autochords has 4.1K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of Chordex's written reviews are positive against 84% of Autochords's.

UpkeepUpdate frequency

Chordex ships an update every 31 months, Autochords every 2 months. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

Scorecard7 real differences · 3 level
Chordex versus Autochords: the parameters behind the verdict, then further details
ParameterChordexAutochords
Price$0.99Free — better
Rating4.0 (1 ratings)4.7 (4.1K ratings) — better
Positive reviews33.3% of reviews83.7% of reviews — better
Number of ratings14.1K — better
Update frequencyEvery 31 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.4
Further details — not scored
Size10 MB28 MB
Age rating4++4
DeveloperMara FlintAstrocode Pty Ltd

Customer experience

Chordex

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Autochords

All ratings4,056 ratings
Positive94.2%
Neutral3.0%
Negative2.8%
Written reviews196 reviews
Positive83.7%
Neutral5.1%
Negative11.2%

Bugs and requests

Chordex

Not enough reviews yet to summarise bugs or requests.

Autochords

Reported bugs

2 issues
  • App freezes up when opened
  • Chord progressions don't sound as intended for some moods

Requested features

6 requests
  • Add augmented chords and more chord variations
  • Allow creating progressions with more than 4 chords
  • Incorporate different time signatures beyond 4/4
  • Add chord inversions and more chord types (7ths, 9ths, etc.)
  • Expand chord library beyond just diatonic chords
Show 1 more
  • Incorporate arpeggio playback and background drums

In-app purchases

None

Chordex

No in-app purchases

4 purchases

Autochords

Subscriptions3
  • PRO Weekly$0.997 Days
  • PRO Monthly$2.991 Month
  • PRO Annual7 Days trial$12.991 Year
One-time1
  • PRO Lifetime$29.99

Questions

Is Chordex free?
Chordex costs $0.99, with no in-app purchases.
Is Autochords free?
Autochords is free to download, with in-app purchases available.
Which has better reviews, Chordex or Autochords?
Autochords is rated higher. Chordex averages 4.0 out of 5 from 1 ratings, while Autochords averages 4.7 from 4.1K ratings.
Do Chordex or Autochords have ads?
Neither Chordex nor Autochords shows ads.
Which is updated more often, Chordex or Autochords?
Chordex ships an update every 31 months, and Autochords every 2 months. Most recently, Chordex was updated on October 6, 2026 and Autochords on October 17, 2026.

Other comparisons