PolyHarp vs Superpowered Universal App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PolyHarp
This app offers a virtual musical instrument inspired by chorded zithers, featuring extensive chord customization, multi-string capabilities, and massive polyphony. It serves as a platform for harmonic theory exploration and a powerful MIDI controller, with numerous presets and the ability to create unique instruments.
- Extensive chord customization
- Multi-string and polyphony support
- Harmonic theory testbed
- MIDI controller functionality
- Large preset library
- Audiobus 3 and IAA support
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PolyHarp is a virtual musical instrument and a thought experiment. It takes the basic idea of a chorded zither and extends it to large numbers of chord choices, made out of any kinds of intervals, multi-string courses, fretting, and massive polyphony. It's a testbed for harmonic theory as well as a great multi touch simulation of the good old "idiot zither" you have in the attic. PolyHarp can translate many of these innovations to MIDI and is a powerful MIDI controller. PolyHarp comes with a large number of presets, exploring many variants on stringed instruments, but its real power is its ability to build strange new chords, layouts, and controls into otherwise impossible instruments. PolyHarp supports Audiobus 3, including saving setups, and IAA.
Superpowered Universal App
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Built with the robust SuperpoweredSDK, this app offers a seamless DJing experience with high-performance audio processing and low latency for live mixing. Key Features: - Dual-deck layout with responsive touch controls for real-time manipulation. - Roll effects with selectable beats for dynamic transitions and drops. - Independent pitch control and tempo sliders for precise beat matching. - High-pass and low-pass filters to sculpt your sound on the fly. - Intuitive crossfader for smooth blending between tracks. - Start/Stop button for accurate cueing and playback control.
Screenshots
Verdict
The clearest difference is price: Superpowered Universal App at Free against PolyHarp's $4.99. Superpowered Universal App also leads on update cadence (every 3 days vs every 4 weeks) and device support (3 vs 1). PolyHarp's advantage is iOS requirement (12.4 vs 15.0). On ads and in-app purchases 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
Superpowered Universal App is free to download; PolyHarp costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PolyHarp ships an update every 4 weeks, Superpowered Universal App every 3 days. The most recent releases landed on September 11, 2026 and September 4, 2026 respectively.
| Parameter | PolyHarp | Superpowered Universal App |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.9 (11 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 4 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 16 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Henry Lowengard | SUPERPOWERED INC |
In-app purchases
PolyHarp
No in-app purchases
Superpowered Universal App
No in-app purchases


