# Erol Singer's Studio vs Interval Sight singing Lite

The clearest difference is in-app purchases: Interval Sight singing Lite at none against Erol Singer's Studio's 5. Interval Sight singing Lite also leads on review sentiment (100% vs 85%) and rating (5.0 vs 4.8). Erol Singer's Studio's advantage is update cadence (every 6 weeks vs every 12 months) and ratings volume (3.4K vs 2). On price, ads and device support there is nothing between them.

Both are free to download. Erol Singer's Studio sells 5 in-app purchases, starting at $1.99 per 7 days. 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: Erol Singer's Studio has 3.4K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 85% of Erol Singer's Studio's written reviews are positive against 100% of Interval Sight singing Lite's.

Erol Singer's Studio ships an update every 6 weeks, Interval Sight singing Lite every 12 months. The most recent releases landed on October 29, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Erol Singer's Studio | Interval Sight singing Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3.4K ratings)](https://appshunter.io/ios/app/erol-singers-studio/id502780186/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/interval-sight-singing-lite/id1347186534/reviews)** |
| Number of ratings | **3.4K** | 2 |
| Positive reviews | 85.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 12 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 108 MB | 19 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erol Studios](https://appshunter.io/developer/502780529) | [Jun-sig Kim](https://appshunter.io/developer/1344663773) |

## What reviewers say

### Erol Singer's Studio

[App page](https://appshunter.io/ios/app/erol-singers-studio/id502780186)

Learn to sing with structured lessons and advanced pitch tracking. This app provides techniques to improve vocal range, power, and clarity, preventing common singing mistakes. It's designed for all skill levels, from beginners to those seeking to refine their voice.

**Highlights:** Progressive vocal lessons, Super-smooth pitch tracking, Technique and sound training, Prevent common singing mistakes, Optional exercise editor, Award-winning coach designed

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $1.99 | per 7 days |
| Add-ons for permanent licenses | $2.99 | per month |
| All Access | $6.99 | per month |
| Add-ons for permanent licenses | $24.99 | per year |
| All Access | $49.99 | per year |

**What reviewers like**

- 🚀 Excellent vocal training tool
- 👍 Intuitive and user-friendly interface
- 🎨 Visually appealing with clear feedback
- 💪 Helps improve vocal range and pitch
- 🎯 Accurate pitch detection and tracking

**What reviewers complain about**

- 💰 Subscription model can be expensive
- 🚫 Lack of Bluetooth headphone support
- 🤔 Unclear progression requirements
- 🔇 Lack of audio examples/demonstrations
- 🕰️ Exercises can feel repetitive over time

**Reported bugs**

- App crashes when using Bluetooth headphones
- Occasional loss of progress and purchased content

**Requested features**

- Add more exercise variety and song options
- Implement cloud sync and cross-device support
- Provide more customization options for exercises
- Include a metronome and tempo adjustment features
- Add community-created content and sharing


### 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


## Frequently asked questions

### Is Erol Singer's Studio free?

Erol Singer's Studio is free to download, with in-app purchases available.

### Is Interval Sight singing Lite free?

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

### Which has better reviews, Erol Singer's Studio or Interval Sight singing Lite?

Interval Sight singing Lite is rated higher. Erol Singer's Studio averages 4.8 out of 5 from 3.4K ratings, while Interval Sight singing Lite averages 5.0 from 2 ratings.

### Do Erol Singer's Studio or Interval Sight singing Lite have ads?

Neither Erol Singer's Studio nor Interval Sight singing Lite shows ads.

### Which is updated more often, Erol Singer's Studio or Interval Sight singing Lite?

Erol Singer's Studio ships an update every 6 weeks, and Interval Sight singing Lite every 12 months. Most recently, Erol Singer's Studio was updated on October 29, 2026 and Interval Sight singing Lite on October 3, 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.*