Comparison

iBone vs Harmony Cloud Pro

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

Head to head
About

iBone

This app offers a virtual trombone experience, allowing users to play melodies by touching or blowing into their device and sliding to change pitch. It includes a songbook with guided play-along options and the ability to practice scales and songs.

Highlights
  • Virtual trombone instrument
  • Touch and blow to play
  • Slide to change pitch
  • Adjust volume with bell movement
  • Practice scales and songs
  • Play-along with iPod music
  • Guided learning with roboBone
Features
Read full description

-NOW ON SALE!- Winner of the 'Best Musical Instrument App' in the Best App Ever Awards and iTunes Rewind pick. Not just a tool for trombonists, anyone can play -- iBone shows you how! "...a great tool for trombonists..." - Robin Eubanks, Trombonist with EB3, Dave Holland, SFJAZZ Collective, 2009 Downbeat Reader's Poll 'Best Trombonist' "Brilliant! ...great fun to play with too" - Carol Jarvis, Trombonist with Seal and Sting, Founder Bones Apart "Future of virtual brass?" - Music Inc Mag "...iBone is an interesting experimental blend of gameplay and utility." - Wired, Game|Life It's the Trombone plus more for your iPhone, iPod Touch and iPad. Play it anywhere. Waiting for the bus? Work a little slow? Friend to impress? Simply itching to learn? Whip out your iBone. Practice and learn scales and songs. Even play-a-long with music from your iPod library -- accompany the lead, or take the solo spot. Don't have a clue? Play-a-long with a tune from the iBone Songbook and let roboBone show you the way. It's easy: 1. Touch or blow to make a sound. 2. Slide your finger to change pitch. 3. Raise and lower the bell to change volume. With iBone, you can cover the Trombone's standard two and a half octave range -- slur up and down, slide in and out, and easily play way out of tune. It's the closest you'll get to the real thing. No clue about the real thing? Pick a tune from the iBone Songbook, and let roboBone show you the way as you play along with the band accompaniment. Just tap the rings at the bottom of their fall to hit the right note at the right time. iBone includes seven songs at no additional charge: - 2001: Also Sprach Zarathustra with orchestra - Aura Lee with piano - Air (on a G string) with guitar - Greensleeves with accordion - Guantanmera with bass, bongos, guitar and drums - Ride of the Valkyries with orchestra - Twinkle Twinkle Little Star with piano Additional songs can be purchased and downloaded. Some of these include: - Sloop John B with Rhythm - Man of Constant Sorrow with Banjo - Carol of the Bells with Brass - First Noel with Orchestra - O Silent Night with Strings - O Little Town of Bethlehem with Organ and more! With more to come. Whether you play Trombone and need something more portable, or you've never touched one but want to learn, iBone. Visit http://ibone.spoonjack.com to see it in action. Have your own video to share? Comments? Suggestions? We'd love to hear from you. Please contact us at ibone@spoonjack.com. --- FAQ Q. How do I play with my own music? A. Start the song before loading iBone, and control it by double-clicking the 'Home' button or swiping up to get 'Home'. Q. Why don't I hear anything? A. You probably have left the 'Silent' switch on. It's located on the upper left side of your phone. Any other questions? Please contact us!

About

Harmony Cloud Pro

This app helps musicians of all levels develop their ear for harmony and improvisation. It generates endless, unpredictable chord progressions based on user-selected chords, allowing for personalized learning and exploration of musical concepts.

Highlights
  • Ear training for musicians
  • Improvisation exploration
  • Generates unpredictable chord progressions
  • Customizable tempo, volume, and key
  • Tailorable to all skill levels
  • Patented harmonic algorithm
Features
Read full description

Understanding harmony is an essential skill for any musician. Harmony is the springboard that elevates melodies to their full emotional potential. Harmony Cloud™ is a revolutionary step forward in the world of ear training created by world renowned jazz vibraphonist and music educator Stefon Harris, and software engineer and jazz trombonist Kate Jiang. It is designed to help all musicians, from beginner to professional, expand their ears, deepen their understanding of harmony, and fearlessly explore the world of improvisation. Its underlying patented harmonic algorithm stitches together chords you select into an unending source of unpredictable, yet musical, chord progressions. Harmony Cloud can be tailored to any musician's or teacher’s needs. Chord progressions can range from very simple I, IV, V to progressions that include hundreds of chords. This makes it easy to learn and grow at your own pace. You have control of all aspects of the music including tempo, volume, sounds, key signature, and much more. Privacy Policy: https://harmonycloudmusic.com/privacy Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iBone4 screens
Harmony Cloud Pro3 screens

Verdict

The call

The clearest difference is price: Harmony Cloud Pro at Free against iBone's $2.99. Harmony Cloud Pro also leads on update cadence (weekly vs every 4 months) and rating (5.0 vs 4.7). On review sentiment, 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

Harmony Cloud Pro is free to download; iBone costs $2.99 up front. iBone sells 7 one-off in-app purchases and Harmony Cloud Pro sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Harmony Cloud Pro holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 21 and 69 respectively. Written reviews point the same way: 84% of iBone's written reviews are positive against 87% of Harmony Cloud Pro's.

UpkeepUpdate frequency

iBone ships an update every 4 months, Harmony Cloud Pro weekly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
iBone versus Harmony Cloud Pro: the parameters behind the verdict, then further details
ParameteriBoneHarmony Cloud Pro
Price$2.99Free — better
Rating4.7 (21 ratings)5.0 (69 ratings) — better
Positive reviews84.2% of reviews86.7% of reviews — better
Number of ratings2169 — better
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size18 MB194 MB
Age rating4+4+
DeveloperSpoonjack, LLCThe Melodic Progression Institute LLC

Customer experience

iBone

All ratings21 ratings
Positive90.5%
Neutral4.8%
Negative4.8%
Written reviews120 reviews
Positive84.2%
Neutral6.7%
Negative9.2%

Harmony Cloud Pro

All ratings65 ratings
Positive98.5%
Neutral1.5%
Negative0.0%
Written reviews15 reviews
Positive86.7%
Neutral0.0%
Negative13.3%

Bugs and requests

iBone

Reported bugs

8 issues
  • App crashes in settings
  • App crashes on Verizon iPhones
  • App disables microphone
  • App randomly deletes itself
  • Sound doesn't work (silent app)
Show 3 more
  • Notes don't fade when tilting
  • Songbook display issue (guide remains visible)
  • Sound continues playing when receiving emails

Requested features

18 requests
  • Add more types of trombones (Bass, Valve, Alto, Soprano, Piccolo)
  • Add more songs to the songbook
  • Ability to input custom notes for playback
  • Integrate with music apps for playback
  • Add iTunes music control within the app
Show 13 more
  • Add a volume slider for the app
  • Add support for tilting device for volume control
  • Add pedal tones/notes
  • Add support for turning the iPad
  • Add mutes
  • Add trigger for bass trombone option
  • Add vibrato control
  • Make the trombone image semi-transparent
  • Option to make notes brighter
  • Make an app for trumpet or other instruments
  • Add French note names
  • Improve high/low note range
  • Add more difficult pieces to songbook

Harmony Cloud Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

iBone

One-time7
  • Jesu with Dreidel Song Pack$0.99
  • First Noel at Midnight Song Pack$0.99
  • O, O Song Pack$0.99
Show 4 more
  • Hark, Joy! Song Pack$0.99
  • Bells and Rest Song Pack$0.99
  • Sloop and Sorrow Song Pack$0.99
  • House of the Rising Sun and John Barleycorn Song Pack$0.99
2 purchases

Harmony Cloud Pro

Subscriptions2
  • Monthly7 Days trial$5.991 Month
  • Annual7 Days trial$59.991 Year

Questions

Is iBone free?
iBone costs $2.99, and also offers in-app purchases.
Is Harmony Cloud Pro free?
Harmony Cloud Pro is free to download, with in-app purchases available.
Which has better reviews, iBone or Harmony Cloud Pro?
Harmony Cloud Pro is rated higher. iBone averages 4.7 out of 5 from 21 ratings, while Harmony Cloud Pro averages 5.0 from 69 ratings.
Do iBone or Harmony Cloud Pro have ads?
Neither iBone nor Harmony Cloud Pro shows ads.
Which is updated more often, iBone or Harmony Cloud Pro?
iBone ships an update every 4 months, and Harmony Cloud Pro weekly. Most recently, iBone was updated on October 27, 2026 and Harmony Cloud Pro on October 25, 2026.

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