Comparison

KeyFinder vs Reverse Chord Finder Pro

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

Head to head
About

KeyFinder

Identify the musical key of any song you're listening to. Use the integrated piano to play along and confirm notes, helping the app pinpoint the correct key. Explore music theory and learn to play songs in different keys.

Highlights
  • Identify song keys
  • Built-in piano keyboard
  • Note confirmation
  • Narrow down possible keys
  • Learn songs in any key
Features
Read full description

Ever wondered what the key of a song being played is? Wonder no more! Just use the built-in piano keyboard to play along with a song's melody. As you confirm notes that coincide with what's being played, KeyFinder will narrow down the number of possible keys the song is in. -=-= About Scoreless Music =-=- What's next after knowing a song's key? Why not learn to play that same song in ANY key? Find out more at scorelessmusic.com

About

Reverse Chord Finder Pro

Identify chords by inputting notes from various instruments or music notation. Discover chord names, hear them played, and analyze their construction. Supports multiple instruments and customization options for musicians of all levels.

Highlights
  • Input notes via piano, string instruments, or music score
  • Extensive chord database with over 100 chord types
  • Hear chords as block chords or arpeggios
  • Find partial chord matches
  • Save identified chords to Favorites
  • View chords on different instruments or notation
  • Left-handed string instrument support
Features
Read full description

If you’ve ever asked “What chord am I playing?” Reverse Chord Finder Pro is for you! Just select two or more notes — using piano, stringed instruments, or music notation — and the app will show you the names of the chords that match. “This app is simply awesome! It will accelerate your discovery of new chords in leaps and bounds and raise your level of playing to new heights.” — A Happy Customer KEY FEATURES * Enter notes in 3 different modes: Piano/Keyboard, String Instruments (guitar, bass, ukulele, etc.), and Music Score * Extensive chord database — more than 100 chord types! * Hear chords played as block chords or arpeggios * Find partial chord matches to isolate passing melody notes * Use the Favorites list to bookmark chords you’ve identified * See the same chord represented on different instruments or in musical notation SPECIAL FEATURES * Left-handed String Instrument support * String Instrument options for 3 to 12 strings, plus capo * Music Score mode supports treble and bass staff, and all 12 major and minor keys * View major scale degrees for selected notes to learn chord construction * Customize chord notation (CDEFGAB, CDEFGAH, Do-Re-Mi) MUSICIANS, COMPOSERS, AND MUSIC STUDENTS * Analyze and write down harmonies * Recognize and construct chords more easily * Improve your understanding of chord theory MUSIC TO OUR EARS “I can look up chords faster than with any other method. Worth much more than the current price.” “With this app I can find out what the chords are ... No more embarrassment in front of the rest of the band!” “A songwriter’s best friend!” Questions or comments? Need some help? Email: support@reversechord.com Web: http://reversechord.com Terms of use: http://reversechord.com/terms.html

Screenshots

KeyFinder3 screens
Reverse Chord Finder Pro4 screens

Verdict

The call

The clearest difference is rating: Reverse Chord Finder Pro at 4.7 against KeyFinder's 2.8. Reverse Chord Finder Pro also leads on review sentiment (84% vs 60%) and update cadence (every 5 weeks vs every 3 months). KeyFinder's advantage is in-app purchases (none vs 6) and iOS requirement (11.0 vs 15.6). On price, ratings volume, 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. Reverse Chord Finder Pro sells 6 in-app purchases, starting at $0.99 per 7 days. KeyFinder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Reverse Chord Finder Pro holds the better App Store score, 4.7 against 2.8. Both are backed by a comparable volume of ratings — 321 and 705 respectively. Written reviews point the same way: 60% of KeyFinder's written reviews are positive against 84% of Reverse Chord Finder Pro's.

UpkeepUpdate frequency

KeyFinder ships an update every 3 months, Reverse Chord Finder Pro every 5 weeks. Both last shipped on November 6, 2026.

Scorecard6 real differences · 4 level
KeyFinder versus Reverse Chord Finder Pro: the parameters behind the verdict, then further details
ParameterKeyFinderReverse Chord Finder Pro
PriceFreeFree
Rating2.8 (321 ratings)4.7 (705 ratings) — better
Positive reviews60.0% of reviews83.6% of reviews — better
Number of ratings321705 — better
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size5 MB36 MB
Age rating4+4+
DeveloperScoreless MusicGhostdust

Customer experience

KeyFinder

All ratings322 ratings
Positive32.9%
Neutral19.6%
Negative47.5%
Written reviews25 reviews
Positive60.0%
Neutral12.0%
Negative28.0%

Reverse Chord Finder Pro

All ratings689 ratings
Positive93.9%
Neutral1.5%
Negative4.6%
Written reviews140 reviews
Positive83.6%
Neutral2.9%
Negative13.6%

User reviews

KeyFinder

From 321 App Store ratings

What we love

  • 💡 Useful for finding song keys
  • 👍 Simple and effective key locking
  • 💡 Cool LED display
  • 💡 Good for songwriting aid
  • 💡 Works well for intended purpose

Room to improve

  • 🤔 Hard to use and unclear
  • 🤔 No sound produced
  • 🤔 Limited key support (e.g., no C sharp)
  • 🤔 Slow response to touch
  • 🤔 Difficulty hearing keys with background music

Reverse Chord Finder Pro

From 705 App Store ratings

What we love

  • 👍 Helpful for identifying chords
  • 🚀 Useful for songwriters and musicians
  • 💡 Supports various instruments and tunings
  • 👍 Easy to use interface
  • 👍 Comprehensive chord information

Room to improve

  • 🔒 Certain features locked behind paywall
  • 🐛 Issues with piano mode functionality
  • 🐛 Incorrect chord names displayed

Bugs and requests

KeyFinder

Reported bugs

4 issues
  • No sound
  • Slow response to touch
  • Cannot play minor scales in Ref mode
  • Difficulty controlling volume with background music

Requested features

8 requests
  • Bring the app back
  • Update to 64bit
  • Label notes on piano keys
  • Ability to move up and down the keyboard
  • More keys supported (hundreds)
Show 3 more
  • Control app volume separately from music
  • Show relative minor next to major
  • Make a music notation application

Reverse Chord Finder Pro

Reported bugs

2 issues
  • Capo feature not working as expected
  • Sound not playing in some cases

Requested features

5 requests
  • Ability to save chord progressions
  • Chord lookup functionality
  • MIDI support
  • Customizable chord display options
  • Export chord data to PDF

In-app purchases

None

KeyFinder

No in-app purchases

6 purchases

Reverse Chord Finder Pro

Subscriptions5
  • Weekly (Personal)7 Days trial$0.997 Days
  • Monthly (Personal)$1.991 Month
  • Monthly (Family)$2.991 Month
Show 2 more
  • Annual (Personal)$17.991 Year
  • Annual (Family)$24.991 Year
One-time1
  • Lifetime (Family)$34.99

Questions

Is KeyFinder free?
KeyFinder is free to download, with no in-app purchases.
Is Reverse Chord Finder Pro free?
Reverse Chord Finder Pro is free to download, with in-app purchases available.
Which has better reviews, KeyFinder or Reverse Chord Finder Pro?
Reverse Chord Finder Pro is rated higher. KeyFinder averages 2.8 out of 5 from 321 ratings, while Reverse Chord Finder Pro averages 4.7 from 705 ratings.
Do KeyFinder or Reverse Chord Finder Pro have ads?
Neither KeyFinder nor Reverse Chord Finder Pro shows ads.
Which is updated more often, KeyFinder or Reverse Chord Finder Pro?
KeyFinder ships an update every 3 months, and Reverse Chord Finder Pro every 5 weeks. Most recently, KeyFinder was updated on November 6, 2026 and Reverse Chord Finder Pro on November 6, 2026.

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