# Interval Sight singing Lite vs Harmonic Analysis

The clearest difference is review sentiment: Interval Sight singing Lite at 100% against Harmonic Analysis's 50%. Interval Sight singing Lite also leads on in-app purchases (none vs 3) and rating (5.0 vs 4.8). Harmonic Analysis's advantage is update cadence (every 2 days vs every 12 months) and ratings volume (22 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. Harmonic Analysis sells 3 in-app purchases, starting at $3.99 per month. Interval Sight singing Lite asks for nothing beyond the download.

Interval Sight singing Lite holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Harmonic Analysis has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Interval Sight singing Lite's written reviews are positive against 50% of Harmonic Analysis's.

Interval Sight singing Lite ships an update every 12 months, Harmonic Analysis every 2 days. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Interval Sight singing Lite | Harmonic Analysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/interval-sight-singing-lite/id1347186534/reviews)** | [4.8 (22 ratings)](https://appshunter.io/ios/app/harmonic-analysis-theory/id1366920484/reviews) |
| Number of ratings | 2 | **22** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Size | 19 MB | 84 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jun-sig Kim](https://appshunter.io/developer/1344663773) | [Deeryard LLC](https://appshunter.io/developer/966765345) |

## What reviewers say

### Interval Sight singing Lite

[App page](https://appshunter.io/ios/app/interval-sight-singing-lite/id1347186534)

Practice sight singing with customizable exercises. Select key signatures, intervals, melody length, and more to generate unique practice pieces. Compare your performance with playback options and track your progress.

**Highlights:** Customizable practice exercises, Select key signature, intervals, direction, melody length, range, Generate unique practice pieces, Play composed pieces for comparison, Track practice count, Reset practice counter

**Features:** macOS Compatibility

**In-app purchases:** none


### Harmonic Analysis

[App page](https://appshunter.io/ios/app/harmonic-analysis-theory/id1366920484)

Master music theory with interactive exercises focused on chord and Roman numeral analysis. Practice constructing chords, analyzing progressions, and improving your musical ear through various training modes and customizable settings.

**Highlights:** Chord to Roman numeral training, Chord construction exercises, Chord construction with keyboard, Chord progression analysis, Selectable difficulty levels, Support for inverted chords, Performance reports

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access Monthly | $3.99 | per month |
| Premium Access Yearly | $39.99 | per year |
| One-time Payment | $159.99 | one-time |


## Frequently asked questions

### Is Interval Sight singing Lite free?

Interval Sight singing Lite is free to download, with no in-app purchases.

### Is Harmonic Analysis free?

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

### Which has better reviews, Interval Sight singing Lite or Harmonic Analysis?

Interval Sight singing Lite is rated higher. Interval Sight singing Lite averages 5.0 out of 5 from 2 ratings, while Harmonic Analysis averages 4.8 from 22 ratings.

### Do Interval Sight singing Lite or Harmonic Analysis have ads?

Neither Interval Sight singing Lite nor Harmonic Analysis shows ads.

### Which is updated more often, Interval Sight singing Lite or Harmonic Analysis?

Interval Sight singing Lite ships an update every 12 months, and Harmonic Analysis every 2 days. Most recently, Interval Sight singing Lite was updated on October 3, 2026 and Harmonic Analysis on October 6, 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.*