Comparison

iAutoharp 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

iAutoharp

Easily play chords and strum along to popular tunes without musical training. Reconfigure chord buttons for over 150 chords per key and experiment with melodies by picking subsets of strings.

Highlights
  • Tap chord buttons to strum
  • Switch keys and chords effortlessly
  • Reconfigure over 150 chords per key
  • Pick out melodies by pinching strings
  • Accompaniment for singing or playing along
Read full description

The iAutoharp is easy and fun to play; just tap a chord button and strum to hear that chord played as sweetly as if on the actual 37-string instrument. * Switch keys and chords effortlessly. No musical training is required, and the interface is well designed for the small screen. * Use any of six chord buttons, initially set to common chords so you can easily accompany your singing or play along on most popular tunes. * Reconfigure chord buttons to get any of more than 150 possible chords for each key. You don't need to understand music theory, but if want to learn more about it, the autoharp is a great way to experiment. * Try picking out a melody by "pinching" subsets of strings with two fingers. Please look for other apps by HotPaw Productions in the Music category of the App store: the inTuna Strobe Guitar Tuner, Music Spectrograph, and Sing-inTuna, to visualize if you can sing in tune.

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

iAutoharp1 screens
Hyperion Synthesizer1 screens

Verdict

The call

The clearest difference is review sentiment: iAutoharp at 19% against Hyperion Synthesizer's 0%. iAutoharp also leads on price ($1.99 vs $4.99). Hyperion Synthesizer's advantage is update cadence (every 7 months vs every 15 months) and iOS requirement (10.0 vs 15.2). 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

iAutoharp costs $1.99 and Hyperion Synthesizer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iAutoharp ships an update every 15 months, Hyperion Synthesizer every 7 months. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
iAutoharp versus Hyperion Synthesizer: the parameters behind the verdict, then further details
ParameteriAutoharpHyperion Synthesizer
Price$1.99 — better$4.99
Rating2.7 (3 ratings) — better—
Positive reviews18.8% of reviews — better0.0% of reviews
Number of ratings3 — better—
Update frequencyEvery 15 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.210.0 — better
Further details — not scored
Size4 MB10 MB
Age rating4+4+
DeveloperHotPaw ProductionsAleksandar Mlazev

Customer experience

iAutoharp

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews16 reviews
Positive18.8%
Neutral0.0%
Negative81.3%

Hyperion Synthesizer

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

In-app purchases

None

iAutoharp

No in-app purchases

None

Hyperion Synthesizer

No in-app purchases

Questions

Is iAutoharp free?
iAutoharp costs $1.99, with no in-app purchases.
Is Hyperion Synthesizer free?
Hyperion Synthesizer costs $4.99, with no in-app purchases.
Do iAutoharp or Hyperion Synthesizer have ads?
Neither iAutoharp nor Hyperion Synthesizer shows ads.
Which is updated more often, iAutoharp or Hyperion Synthesizer?
iAutoharp ships an update every 15 months, and Hyperion Synthesizer every 7 months. Most recently, iAutoharp was updated on October 31, 2026 and Hyperion Synthesizer on October 24, 2026.

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