Comparison

iMusicInstruments vs Mandel Draw

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

Head to head
About

iMusicInstruments

Explore a diverse collection of musical instruments from around the globe. This app offers a simulated keyboard with various sounds, allowing users to play melodies and entertain others. It supports transposition and spans 3 octaves, making it a fun tool for musical exploration.

Highlights
  • Simulated music keyboard
  • Global instrument sounds
  • 3-octave span
  • Transposition feature
  • Supports phones and tablets
  • 76+ musical instruments and sounds
Features
Read full description

Music Instruments Music Instruments from all over the world Have fun playing sounds on a music keyboard. Entertain your family and friends with this very easy to use simulated music keyboard. Play any melody you like in different music sounds. Look, listen and play the sounds of music from different cultures and countries around the world. Musical keyboard spans 3 octaves. Music transposition up or down half a tone on the musical keyboard. Transpose the sound to make it easy to accompany other music instruments. Works with telephones and tablets. 76 musical instruments or sound available : Wind : trumpet, oboe, clarinet, accordion, harmonica, banoneon, trombone, tuba, french horns, saxophone, english horn, bassoon, piccolo, flute, recorder, panflute, bottle blow, shakuhachi, whistle, ocarina, bagpipe, shanai Strings : guitar, violin, viola, cello, contrabass, harp, sitar, banjo, shamisen, koto, fiddle Percussion : vibraphone, timpani, glockenspiel, music box, marimba, xylophone, tubular bell, santur, kalimba, tinkle bell, agogo, steel drums, wood block, taiko Keyboard : piano, organ, electric piano, honky tonk, harpsichord, clavichord, celesta, syncalliope Sounds : bird, telephone, choir aahs, voice oohs, space voice, ice rain, crystal, helicopter, applause, saw, sea shore, fifth saw wave, fantasia, star theme Notes on the keys available C D E F G A B C D E F G A H Do Ré Mi Fa Sol La Si Ni Pa Vu Ga Di Ke Zo Sa Re Ga Ma Pa Dha Ni ha ni ho he to i ro

About

Mandel Draw

Explore the infinite beauty of fractals with this intuitive drawing app. Generate Mandelbrot and Julia sets with numerous functions and color palettes. Enjoy simple touch controls for navigation and advanced settings for high-resolution output and iCloud syncing.

Highlights
  • Mandelbrot and Julia set generation
  • 80+ fractal functions
  • 20+ color palettes
  • Intuitive touch controls (drag, pinch, tap)
  • High-resolution output
  • iCloud Sync for favorites and palettes
Features
Read full description

Mandel Draw is an application that allows you to enjoy fractals, Mandelbrot sets and filled Julia sets, in a fast and comfortable way. The app allows you to draw an infinite number of fractal images from up to 80 different functions, 20+α color palettes, and freely configurable Julia parameters. Operation is simple. Drag to move, pinch to zoom in and out. Double- and triple-tap operations are also available. Convenient settings are also available. - Use DF64 operation: Double the float operation to make it possible to zoom in more. (Disabled in the Appendix 1,2) - Select render version: Two types of rendering methods can be selected. - Display coordinates and magnification: The current coordinates and magnification will be displayed on the screen. - Output detailed information: Add detailed information to the text when sharing. - High-resolution output: Outputs at 4 times the vertical and horizontal resolution when sharing. - iCloud Sync: Share favorites and My Palette with another iPhone or iPad. In addition, all functions are available when unlocked with in-app purchase. 1) All functions are selectable 2) All palettes can be selected 3) Up to 2000 favorites can be saved 4) Maximum number of My Palettes that can be saved is now 30. Now, please enjoy the wonderful and mysterious world of fractals. What is a fractal? Simply put, a fractal is a self-similar figure that does not lose its complexity no matter how much it is enlarged. (Though computers have their limitations.) There are various fractal shapes, such as the Koch curve, Sierpinski's gasket, and Menger's sponge. The Mandelbrot set and the filled Julia set are fractals drawn computationally on the complex plane.

Screenshots

iMusicInstruments4 screens
Mandel Draw4 screens

Verdict

The call

The clearest difference is review sentiment: iMusicInstruments at 100% against Mandel Draw's 53%. iMusicInstruments also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 1). Mandel Draw's advantage is price (Free vs $0.99) and update cadence (weekly vs every 12 months). On 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

Mandel Draw is free to download; iMusicInstruments costs $0.99 up front. Mandel Draw sells 1 one-off in-app purchase. iMusicInstruments asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iMusicInstruments holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Mandel Draw has 212 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of iMusicInstruments's written reviews are positive against 53% of Mandel Draw's.

UpkeepUpdate frequency

iMusicInstruments ships an update every 12 months, Mandel Draw weekly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard8 real differences · 2 level
iMusicInstruments versus Mandel Draw: the parameters behind the verdict, then further details
ParameteriMusicInstrumentsMandel Draw
Price$0.99Free — better
Rating5.0 (3 ratings) — better4.5 (212 ratings)
Positive reviews100.0% of reviews — better53.3% of reviews
Number of ratings3212 — better
Update frequencyEvery 12 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size10 MB22 MB
Age rating9+4+
DeveloperAlain KongKouji Mori

Customer experience

iMusicInstruments

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Mandel Draw

All ratings147 ratings
Positive87.1%
Neutral4.8%
Negative8.2%
Written reviews30 reviews
Positive53.3%
Neutral20.0%
Negative26.7%

In-app purchases

None

iMusicInstruments

No in-app purchases

1 purchases

Mandel Draw

One-time1
  • Unlock$1.99

Questions

Is iMusicInstruments free?
iMusicInstruments costs $0.99, with no in-app purchases.
Is Mandel Draw free?
Mandel Draw is free to download, with in-app purchases available.
Which has better reviews, iMusicInstruments or Mandel Draw?
iMusicInstruments is rated higher. iMusicInstruments averages 5.0 out of 5 from 3 ratings, while Mandel Draw averages 4.5 from 212 ratings.
Do iMusicInstruments or Mandel Draw have ads?
Neither iMusicInstruments nor Mandel Draw shows ads.
Which is updated more often, iMusicInstruments or Mandel Draw?
iMusicInstruments ships an update every 12 months, and Mandel Draw weekly. Most recently, iMusicInstruments was updated on November 2, 2026 and Mandel Draw on November 7, 2026.

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