# PolyHarp vs Trapezoid

The clearest difference is rating: PolyHarp at 4.9 against Trapezoid's 3.9. PolyHarp also leads on review sentiment (100% vs 91%). Trapezoid's advantage is update cadence (every 4 days vs every 4 weeks) and price ($2.99 vs $4.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

PolyHarp costs $4.99 and Trapezoid $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PolyHarp holds the better App Store score, 4.9 against 3.9. Both are backed by a comparable volume of ratings — 11 and 7 respectively. Written reviews point the same way: 100% of PolyHarp's written reviews are positive against 91% of Trapezoid's.

PolyHarp ships an update every 4 weeks, Trapezoid every 4 days. The most recent releases landed on September 30, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | PolyHarp | Trapezoid |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/polyharp/id961772600/reviews)** | [3.9 (7 ratings)](https://appshunter.io/ios/app/trapezoid-hammered-dulcimer/id1062108541/reviews) |
| Number of ratings | **11** | 7 |
| Positive reviews | **100.0% of reviews** | 90.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Monetization | Paid | Paid |
| Size | 16 MB | 73 MB |
| Requires iOS | 12.4 | **10.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Henry Lowengard](https://appshunter.io/developer/288419654) | [Michael Eskin](https://appshunter.io/developer/342739369) |

## What reviewers say

### PolyHarp

[App page](https://appshunter.io/ios/app/polyharp/id961772600)

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.

**Highlights:** Extensive chord customization, Multi-string and polyphony support, Harmonic theory testbed, MIDI controller functionality, Large preset library, Audiobus 3 and IAA support

**In-app purchases:** none


### Trapezoid

[App page](https://appshunter.io/ios/app/trapezoid-hammered-dulcimer/id1062108541)

This virtual instrument app offers an authentic hammered dulcimer experience on iPad. It features a full range of notes, customizable tunings, and realistic playing mechanics like drag rolls. Advanced users can connect MIDI controllers for enhanced performance and control.

**Highlights:** Authentic hammered dulcimer sound and playability, Full range of a 15/14 instrument, Standard and Michigan (octave) tunings, Drag roll effects for repeated notes, Hard or soft hammer sound options, MIDI keyboard support with velocity sensitivity, Adjustable volume, panning, and strike zones

**In-app purchases:** none


## Frequently asked questions

### Is PolyHarp free?

PolyHarp costs $4.99, with no in-app purchases.

### Is Trapezoid free?

Trapezoid costs $2.99, with no in-app purchases.

### Which has better reviews, PolyHarp or Trapezoid?

PolyHarp is rated higher. PolyHarp averages 4.9 out of 5 from 11 ratings, while Trapezoid averages 3.9 from 7 ratings.

### Do PolyHarp or Trapezoid have ads?

Neither PolyHarp nor Trapezoid shows ads.

### Which is updated more often, PolyHarp or Trapezoid?

PolyHarp ships an update every 4 weeks, and Trapezoid every 4 days. Most recently, PolyHarp was updated on September 30, 2026 and Trapezoid on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*