# ChoirKey vs Howli

The clearest difference is in-app purchases: ChoirKey at none against Howli's 3. ChoirKey also leads on iOS requirement (15.0 vs 17.0). Howli's advantage is update cadence (every 3 days vs every 10 days). On price, ads and device support there is nothing between them.

Both are free to download. Howli sells 3 in-app purchases, starting at $3.99 per month. ChoirKey asks for nothing beyond the download.

ChoirKey ships an update every 10 days, Howli every 3 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ChoirKey | Howli |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (21 ratings)](https://appshunter.io/ios/app/howli-learn-to-sing-harmonies/id6762453643/reviews)** |
| Number of ratings | — | **21** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 13 MB | 94 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tristan Russcher](https://appshunter.io/developer/1462678255) | [CandidGO Ltd](https://appshunter.io/developer/1848321804) |

## What reviewers say

### ChoirKey

[App page](https://appshunter.io/ios/app/choirkey/id1488600597)

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

**In-app purchases:** none


### Howli

[App page](https://appshunter.io/ios/app/howli-learn-to-sing-harmonies/id6762453643)

This app allows users to practice and record vocal harmonies. Users can record individual parts, duet with friends, or create multi-layered vocal tracks. It offers tools for creating and sharing custom vocal arrangements with visual feedback.

**Highlights:** Practice vocal parts with pitch and lyric guides, Record harmonies solo or duet with friends, Create layered harmony videos, Freestyle recording for a cappella or choir effects, Import MIDI and MusicXML for custom arrangements, Save and share videos with or without camera, Adjust reverb and voice pitch

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Howli Unlimited Monthly | $3.99 | per month |
| Howli Unlimited Yearly | $14.99 | per year |
| Howli Unlimited Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is ChoirKey free?

ChoirKey is free to download, with no in-app purchases.

### Is Howli free?

Howli is free to download, with in-app purchases available.

### Do ChoirKey or Howli have ads?

Neither ChoirKey nor Howli shows ads.

### Which is updated more often, ChoirKey or Howli?

ChoirKey ships an update every 10 days, and Howli every 3 days. Most recently, ChoirKey was updated on November 3, 2026 and Howli on November 5, 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.*