# Guitar Intervals Pro vs Flat or Sharp

The clearest difference is price: Flat or Sharp at Free against Guitar Intervals Pro's $1.99. Guitar Intervals Pro's advantage is in-app purchases (none vs 7) and chart position (#174 vs unranked). On update cadence, ads and device support there is nothing between them.

Flat or Sharp is free to download; Guitar Intervals Pro costs $1.99 up front. Flat or Sharp sells 7 in-app purchases, starting at $2.99 per month. Guitar Intervals Pro asks for nothing beyond the download.

Guitar Intervals Pro ships an update every 40 months, Flat or Sharp every 65 months. The most recent releases landed on September 10, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Guitar Intervals Pro | Flat or Sharp |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/flat-or-sharp/id1522100449/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 40 months** | Every 65 months |
| Monetization | — | Freemium |
| Best chart rank | **#174** | — |
| Size | 6 MB | 4 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andrii Pirumov](https://appshunter.io/developer/1301462412) | [Euphorophonics, LLC](https://appshunter.io/developer/1464810513) |

## What reviewers say

### Guitar Intervals Pro

[App page](https://appshunter.io/ios/app/guitar-intervals-pro/id1335328670)

**Currently charting:** #174 Top Paid · Music (US App Store)

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

**In-app purchases:** none


### Flat or Sharp

[App page](https://appshunter.io/ios/app/flat-or-sharp/id1522100449)

This app helps you improve your musical ear by training you to identify flat or sharp intonation in musical intervals. It offers customizable difficulty levels, various interval types, and detailed progress tracking to guide your learning journey.

**Highlights:** Identify flat/sharp intonation, All musical intervals included, Customizable difficulty levels, Melodic and harmonic intervals, Progress tracking and streaks, Practice suggestions and tips

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flat or Sharp Premium (Monthly) | $2.99 | per month |
| Flat or Sharp Premium (Annual) | $14.99 | per year |
| Both Interval Directions | $0.99 | one-time |
| Remove Banner Ad | $0.99 | one-time |
| All Duration Options | $1.99 | one-time |
| All Accuracy Options | $2.99 | one-time |
| BUNDLE - All Premium Options | $4.99 | one-time |


## Frequently asked questions

### Is Guitar Intervals Pro free?

Guitar Intervals Pro costs $1.99, with no in-app purchases.

### Is Flat or Sharp free?

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

### Do Guitar Intervals Pro or Flat or Sharp have ads?

Neither Guitar Intervals Pro nor Flat or Sharp shows ads.

### Which is updated more often, Guitar Intervals Pro or Flat or Sharp?

Guitar Intervals Pro ships an update every 40 months, and Flat or Sharp every 65 months. Most recently, Guitar Intervals Pro was updated on September 10, 2026 and Flat or Sharp on June 10, 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.*