# Sing Sharp vs Vocal Warmups with Kathleen

The clearest difference is monetization model: Sing Sharp at free with in-app purchases against Vocal Warmups with Kathleen's subscription. Sing Sharp also leads on update cadence (every 5 weeks vs every 7 months) and ratings volume (14K vs 37). Vocal Warmups with Kathleen's advantage is ads (none vs shown) and rating (4.5 vs 4.3). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Sing Sharp sells 10 in-app purchases, starting at $19.99 per month and Vocal Warmups with Kathleen sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Vocal Warmups with Kathleen holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Sing Sharp has 14K ratings behind it against 37, so its average is the more settled of the two. Written reviews point the same way: 70% of Sing Sharp's written reviews are positive against 78% of Vocal Warmups with Kathleen's.

Sing Sharp ships an update every 5 weeks, Vocal Warmups with Kathleen every 7 months. Both last shipped on September 26, 2026.

## The numbers

| Metric | Sing Sharp | Vocal Warmups with Kathleen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (14K ratings)](https://appshunter.io/ios/app/sing-sharp-singing-lessons/id772052329/reviews) | **[4.5 (37 ratings)](https://appshunter.io/ios/app/vocal-warmups-with-kathleen/id1584560633/reviews)** |
| Number of ratings | **14K** | 37 |
| Positive reviews | 69.6% of reviews | **78.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 7 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | **#200** | — |
| Size | 215 MB | 24 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Singing Lessons & Vocal Training Academy Learn Singing with Pro Vocal Coaches & Voice Trainers](https://appshunter.io/developer/1784397967) | [Kathleen Hansen](https://appshunter.io/developer/1710455317) |

## What reviewers say

### Sing Sharp

[App page](https://appshunter.io/ios/app/sing-sharp-singing-lessons/id772052329)

**Currently charting:** #200 Top Grossing · Music (US App Store)

This app acts as a personal vocal coach, offering real-time feedback on pitch and resonance. It provides interactive video lessons, personalized exercises, and challenges to help users expand their vocal range and improve their singing skills.

**Highlights:** Real-time pitch and resonance feedback, Interactive video lessons, Personalized vocal exercises, Vocal range expansion training, Perfect pitch training, Progress tracking

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sing Sharp Membership -1 Month | $19.99 | per month |
| Sing Sharp Membership -3 Month | $39.99 | per 3 months |
| Sing Sharp Membership -1 Year | $99.99 | per year |
| Package of 5 Basic Warm Up Exercises | $0.99 | one-time |
| Package of 5 Intermediate Warm Up Exercises | $0.99 | one-time |
| Package of 5 Advanced Warm Up Exercises | $0.99 | one-time |
| Package of 3 Melodic Warm Up - A | $0.99 | one-time |
| Package of 3 Melodic Warm Up - B | $0.99 | one-time |
| Remove Ad | $2.99 | one-time |
| 1 Year Membership Subscription | $29.99 | one-time |

**What reviewers like**

- 👍 Friendly, encouraging teacher
- 👍 Easy to use
- 👍 Helps find vocal range
- 👍 Accessible and motivating for beginners
- 👍 Tracks voice and shows notes in real-time

**What reviewers complain about**

- 💰 Expensive subscription
- 🎵 Limited song selection
- 🔊 Loud and unbalanced audio
- 🔍 Microphone compatibility issues
- 🤔 Confusing to use at times

**Reported bugs**

- App crashes frequently
- Subscription issues and lack of customer support
- Inconsistent performance and glitches

**Requested features**

- Expand song library to include more genres and artists
- Improve song selection for beginners
- Provide option to purchase individual songs without subscription
- Enhance progress tracking and goal-setting features
- Improve microphone compatibility and voice recognition


### Vocal Warmups with Kathleen

[App page](https://appshunter.io/ios/app/vocal-warmups-with-kathleen/id1584560633)

Improve your singing voice with a comprehensive library of guided vocal warmups and skill-building exercises. Developed by a vocal coach, this app helps singers of all levels enhance their range, consistency, and vocal health. It's like having a personal vocal coach available anytime, anywhere.

**Highlights:** Over 60 vocal warmup playlists, Skill-building exercises, Save favorites and download for offline access, User-friendly play, pause, repeat controls, Curated warmup collections, Timed warmups for specific skills, Ongoing content updates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vocal Warmups With Kathleen | $3.99 | per month |
| Vocal Warmups with Kathleen | $39.99 | per year |


## Frequently asked questions

### Is Sing Sharp free?

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

### Is Vocal Warmups with Kathleen free?

Vocal Warmups with Kathleen is free to download, with in-app purchases available.

### Which has better reviews, Sing Sharp or Vocal Warmups with Kathleen?

Vocal Warmups with Kathleen is rated higher. Sing Sharp averages 4.3 out of 5 from 14K ratings, while Vocal Warmups with Kathleen averages 4.5 from 37 ratings.

### Do Sing Sharp or Vocal Warmups with Kathleen have ads?

Sing Sharp shows ads; Vocal Warmups with Kathleen does not.

### Which is updated more often, Sing Sharp or Vocal Warmups with Kathleen?

Sing Sharp ships an update every 5 weeks, and Vocal Warmups with Kathleen every 7 months. Most recently, Sing Sharp was updated on September 26, 2026 and Vocal Warmups with Kathleen on September 26, 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.*