# Pendulum Lab vs Sharp

The clearest difference is price: Sharp at Free against Pendulum Lab's $0.99. Sharp also leads on update cadence (every 8 days vs every 5 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Sharp is free to download; Pendulum Lab costs $0.99 up front. Pendulum Lab sells 1 one-off in-app purchase and Sharp sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Pendulum Lab ships an update every 5 weeks, Sharp every 8 days. The most recent releases landed on September 17, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Pendulum Lab | Sharp |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sharp-ear-training/id6755658343/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | — | Freemium |
| Size | 4 MB | 42 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hyeonsu jeong](https://appshunter.io/developer/1628268684) | [Alejandro Jimenez](https://appshunter.io/developer/1759471257) |

## What reviewers say

### Pendulum Lab

[App page](https://appshunter.io/ios/app/pendulum-lab/id6661026555)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Triple Pendulum Unlock | $0.99 | one-time |


### Sharp

[App page](https://appshunter.io/ios/app/sharp-ear-training/id6755658343)

This app helps musicians improve their ability to recognize musical sounds, sing more accurately, and understand music theory. It offers a variety of exercises, daily routines, and progress tracking to build stronger pitch, intonation, and confidence. Practice essential skills like intervals, chords, scales, and rhythm in just a few minutes a day.

**Highlights:** Pitch and interval recognition, Chord and scale identification, Microphone-based singing practice, Rhythm and tempo training, Daily practice routines, Progress tracking and analytics, Music theory exercises

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sharp Pro Monthly | $8.99 | per month |
| Sharp Pro Annually | $89.99 | per year |
| Sharp Pro Unlimited | $239.99 | one-time |


## Frequently asked questions

### Is Pendulum Lab free?

Pendulum Lab costs $0.99, and also offers in-app purchases.

### Is Sharp free?

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

### Do Pendulum Lab or Sharp have ads?

Neither Pendulum Lab nor Sharp shows ads.

### Which is updated more often, Pendulum Lab or Sharp?

Pendulum Lab ships an update every 5 weeks, and Sharp every 8 days. Most recently, Pendulum Lab was updated on September 17, 2026 and Sharp on September 27, 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.*