iAutoharp vs Hyperion Synthesizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Morphing waves technology
- AUV3 (Audio Unit) support
- MIDI keyboard support
- Stereo and tremolo effects
- Reverb and echo effects
- Multiple morph and harmonics modes
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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
Verdict
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
iAutoharp costs $1.99 and Hyperion Synthesizer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | iAutoharp | Hyperion Synthesizer |
|---|---|---|
| Price | $1.99 — better | $4.99 |
| Rating | 2.7 (3 ratings) — better | — |
| Positive reviews | 18.8% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | — |
| Update frequency | Every 15 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.2 | 10.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | HotPaw Productions | Aleksandar Mlazev |
Customer experience
iAutoharp
Hyperion Synthesizer
In-app purchases
iAutoharp
No in-app purchases
Hyperion Synthesizer
No in-app purchases
Questions
Is iAutoharp free?
Is Hyperion Synthesizer free?
Do iAutoharp or Hyperion Synthesizer have ads?
Which is updated more often, iAutoharp or Hyperion Synthesizer?
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