Comparison

Music Spectrograph vs Hyperion Synthesizer

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

Head to head
About

Music Spectrograph

Visually reverse engineer sound and music in real-time with a live MIDI piano roll displaying pitch and frequency. Slow down or stop audio to analyze musical patterns, aiding in music transcription and learning.

Highlights
  • Real-time MIDI piano roll
  • Pitch and frequency visualization
  • Slow down and stop audio
  • Music transcription aid
  • Adjustable playback speed
  • Color-coded pitch graph
Features
Read full description

Music Spectrograph allows you to visually reverse engineer sound and music, in real-time. See a live MIDI piano roll showing pitch and frequency. When playing music files, you can slow down, and even stop sound in time. Music Spectrograph is being using in college music programs to aid in learning music transcription. The Hotpaw Music Spectrograph presents a high-resolution scrolling spectrogram as you listen, so that you can see these patterns in sound and music, as well as how sound corresponds to notes on a piano keyboard. This piano alignment makes it far easier to spot which frequencies in sounds correspond to which musical notes. Features include: - 12th-octave MIDI-pitch-centered spectrograph (also called a sonogram) - Usable with live audio, tunes from your iOS device's music library, or a file downloaded via a URL (web address) - Records up to a 4 minute spectrograph history you can stop, scroll back and review - Slow Down music files by up to 8X, or speed music up by 3X to skip sections faster - Stop music in time, and still hear the music frequencies present via re-synthesis (scroll back a little in time to bring up the ReSynth switch). - Play tunes in mono, left or right channel only, or with center-panned vocals reduced - Color the pitch graph to see if notes are in-tune or out-of-tune - Color the spectrograph for loudness, or graph in black-and-white or with Pastel colors - Mid-pitch filtering to remove some of the higher overtones Use the Input? button to select a tune from your library (DRM protected iTunes files not supported). Use the Gear button to select among several viewing modes. There's a volume control to manually set the sensitivity threshold. Stop playing or recording to scroll back and review or resynthesize sound. Touch the keyboard during resynthesis to isolate one note. For many musical sounds, this app will show you many overtones and harmonics, not just the fundamental pitch of notes. Some musical experience is required to tell musical notes from their overtones and harmonic frequencies.

About

Hyperion Synthesizer

Explore vast sonic landscapes with an advanced FM synthesizer. This app features morphing waves technology, extensive sound effects, and MIDI keyboard support for professional music creation.

Highlights
  • Morphing waves technology
  • AUV3 (Audio Unit) support
  • MIDI keyboard support
  • Stereo and tremolo effects
  • Reverb and echo effects
  • Multiple morph and harmonics modes
Features
Read full description

Morphing waves technology for great space sounds. AUV3 (Audio Unit) and midi keyboard support! In Hyperion I have used everything I know so far to create most full and nice sounding FM synth based on my sound engine. Hyperion Synthesizer has: - Morph speed control - Morph depth control - phase shift control - stereo shift control - tremolo sound effect - reverb effect - volume control - envelope controls - speaker simulation (mode) - echo - 4 morph modes - 7 harmonics modes - supports MIDI keyboards via USB (full velocity and pitch shift support) - works as Audio Unit instrument plug-in AUV3

Screenshots

Music Spectrograph2 screens
Hyperion Synthesizer1 screens

Verdict

The call

The clearest difference is review sentiment: Music Spectrograph at 50% against Hyperion Synthesizer's 0%. Music Spectrograph also leads on update cadence (every 6 weeks vs every 7 months). Hyperion Synthesizer's advantage is price ($4.99 vs $9.99) and iOS requirement (10.0 vs 12.4). On ads, in-app purchases, monetization model 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

Music Spectrograph costs $9.99 and Hyperion Synthesizer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Music Spectrograph ships an update every 6 weeks, Hyperion Synthesizer every 7 months. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Music Spectrograph versus Hyperion Synthesizer: the parameters behind the verdict, then further details
ParameterMusic SpectrographHyperion Synthesizer
Price$9.99$4.99 — better
Rating2.5 (4 ratings) — better—
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings4 — better—
Update frequencyEvery 6 weeks — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.410.0 — better
Further details — not scored
Size1 MB10 MB
Age rating4+4+
DeveloperHotPaw ProductionsAleksandar Mlazev

Customer experience

Music Spectrograph

All ratings4 ratings
Positive25.0%
Neutral25.0%
Negative50.0%
Written reviews8 reviews
Positive50.0%
Neutral12.5%
Negative37.5%

Hyperion Synthesizer

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Music Spectrograph

No in-app purchases

None

Hyperion Synthesizer

No in-app purchases

Questions

Is Music Spectrograph free?
Music Spectrograph costs $9.99, with no in-app purchases.
Is Hyperion Synthesizer free?
Hyperion Synthesizer costs $4.99, with no in-app purchases.
Do Music Spectrograph or Hyperion Synthesizer have ads?
Neither Music Spectrograph nor Hyperion Synthesizer shows ads.
Which is updated more often, Music Spectrograph or Hyperion Synthesizer?
Music Spectrograph ships an update every 6 weeks, and Hyperion Synthesizer every 7 months. Most recently, Music Spectrograph was updated on October 17, 2026 and Hyperion Synthesizer on October 24, 2026.

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