# Notevision vs Piano Key Detector

The clearest difference is review sentiment: Notevision at 88% against Piano Key Detector's 25%. Notevision also leads on rating (4.8 vs 2.3) and ads (none vs shown). Piano Key Detector's advantage is iOS requirement (12.1 vs 16.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Notevision sells 1 one-off in-app purchase and Piano Key Detector sells 3 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

Notevision holds the better App Store score, 4.8 against 2.3. That said, the two scores are not equally well evidenced: Notevision has 3.3K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 88% of Notevision's written reviews are positive against 25% of Piano Key Detector's.

Notevision ships an update weekly, Piano Key Detector every 5 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Notevision | Piano Key Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.3K ratings)](https://appshunter.io/ios/app/notevision-sight-reading/id874386416/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/piano-key-detector/id1612601920/reviews) |
| Number of ratings | **3.3K** | 3 |
| Positive reviews | **88.2% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 57 MB | 149 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ryan Newsome](https://appshunter.io/developer/307084497) | [Dmitry Stolets](https://appshunter.io/developer/1595588193) |

## What reviewers say

### Notevision

[App page](https://appshunter.io/ios/app/notevision-sight-reading/id874386416)

Master sight-reading and build musical skill with interactive exercises. Practice using a MIDI instrument, microphone, or on-screen keyboard. Learn music theory and chords with adaptive difficulty and progress tracking.

**Highlights:** Interactive sight-reading exercises, MIDI, microphone, or on-screen keyboard input, Adaptive difficulty levels, Music theory lessons, Interactive chord reference, Progress tracking, Songs and randomized practice

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |

**What reviewers like**

- 🚀 Excellent Sight Reading Tutor
- 🚀 Improved Sight Reading Quickly
- 👍 Great App
- 👍 Helpful for Learning Notes
- 👍 Fantastic Tool

**What reviewers complain about**

- 🐛 Microphone Input from Piano Does Not Work
- 🐛 Keyboard Covers Notes on iPhone
- 🐛 Incorrect Note Detection
- 🐛 Microphone Feature Not Working
- 🔒 Sneaky and Frustrating Premium Update

**Reported bugs**

- Microphone Input from Piano Does Not Work
- Keyboard Covers Notes on iPhone
- Incorrect Note Detection
- Microphone Feature Not Working

**Requested features**

- Ability to Practice Chords and Chord Progressions
- Option to Practice Both Hands Playing at the Same Time
- Ability to Import MIDI Files
- Metronome and Rhythm Practice
- User Profiles to Track Individual Progress


### Piano Key Detector

[App page](https://appshunter.io/ios/app/piano-key-detector/id1612601920)

This app uses machine learning to accurately identify piano keys played into your device's microphone. It can help with piano tuning, learning, and verifying correct notes. Save sequences of recognized chords and access support in 127 languages.

**Highlights:** Accurate piano key detection, Machine learning recognition, Piano tuning assistance, Learning aid, Chord designation saving, 127 language support

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove advertising | $1.49 | per month |
| Remove Ads (Premium) | $3.99 | per month |
| Remove Ads (Premium) | $29.99 | per year |


## Frequently asked questions

### Is Notevision free?

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

### Is Piano Key Detector free?

Piano Key Detector is free to download, with in-app purchases available.

### Which has better reviews, Notevision or Piano Key Detector?

Notevision is rated higher. Notevision averages 4.8 out of 5 from 3.3K ratings, while Piano Key Detector averages 2.3 from 3 ratings.

### Do Notevision or Piano Key Detector have ads?

Piano Key Detector shows ads; Notevision does not.

### Which is updated more often, Notevision or Piano Key Detector?

Notevision ships an update weekly, and Piano Key Detector every 5 months. Most recently, Notevision was updated on October 26, 2026 and Piano Key Detector on October 24, 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.*