# PentaMonochord vs Come & Sing

The clearest difference is price: Come & Sing at Free against PentaMonochord's $1.99. Come & Sing also leads on update cadence (every 4 months vs every 24 months). PentaMonochord's advantage is in-app purchases (none vs 10) and iOS requirement (12.0 vs 15.0). On ads and device support there is nothing between them.

Come & Sing is free to download; PentaMonochord costs $1.99 up front. Come & Sing sells 10 one-off in-app purchases. PentaMonochord asks for nothing beyond the download.

PentaMonochord ships an update every 24 months, Come & Sing every 4 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | PentaMonochord | Come & Sing |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pentamonochord/id1582880506/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 12 MB | 14 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lucy Hudson](https://appshunter.io/developer/1179157812) | [Anke Bolz](https://appshunter.io/developer/1711377137) |

## What reviewers say

### PentaMonochord

[App page](https://appshunter.io/ios/app/pentamonochord/id1582880506)

Explore the relationship between pitch and string length with a digital monochord. Build scales, hear intervals, and learn about Pythagorean music theory through interactive blocks and historical context.

**Highlights:** Build two-octave G pentatonic scales, Hear and see interval relationships, View Hertz frequencies and string lengths, Play pentatonic tunes, Scale-building game mode, Background information on monochord system, Historical timeline

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Come & Sing

[App page](https://appshunter.io/ios/app/come-and-sing/id6469041096)

An audio songbook for harmony singing, offering over 100 polyphonic titles from global cultures. Learn parts, practice with guitar accompaniment, and sync lyrics. Discover live singing events and new songs regularly.

**Highlights:** Over 100 polyphonic world music titles, Learn and practice individual vocal parts, Guitar accompaniment tracks, Synchronized lyrics, Live singing event calendar, Free download with 3 titles

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Om mani (with Philipp Stegmüller) | $2.99 | one-time |
| Oma Emilia | $2.99 | one-time |
| Peace Songs (with Lea Morris) | $2.99 | one-time |
| Romale | $2.99 | one-time |
| Sa kore sam | $2.99 | one-time |
| Song of the stars | $2.99 | one-time |
| Woods | $2.99 | one-time |
| The Power is here now | $2.99 | one-time |
| Together | $2.99 | one-time |
| Wieder nach vorn schaun(with Iria) | $2.99 | one-time |


## Frequently asked questions

### Is PentaMonochord free?

PentaMonochord costs $1.99, with no in-app purchases.

### Is Come & Sing free?

Come & Sing is free to download, with in-app purchases available.

### Do PentaMonochord or Come & Sing have ads?

Neither PentaMonochord nor Come & Sing shows ads.

### Which is updated more often, PentaMonochord or Come & Sing?

PentaMonochord ships an update every 24 months, and Come & Sing every 4 months. Most recently, PentaMonochord was updated on October 30, 2026 and Come & Sing on October 30, 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.*