# Post vs Piano Visualizer

The clearest difference is rating: Post at 4.3 against Piano Visualizer's 1.0. Post also leads on price ($4.99 vs $9.99) and chart position (#196 vs unranked). Piano Visualizer's advantage is device support (4 vs 2). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Post costs $4.99 and Piano Visualizer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Post holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Post has 6 ratings behind it against 1, so its average is the more settled of the two.

Post ships an update every 2 months, Piano Visualizer every 3 months. The most recent releases landed on August 9, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Post | Piano Visualizer |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/post-tonal-tool-kit/id626579886/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/piano-visualizer/id6739029911/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | Paid |
| Best chart rank | **#196** | — |
| Size | 1 MB | 247 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [A Squared Applications](https://appshunter.io/developer/626580049) | [Weida Fan](https://appshunter.io/developer/1622755748) |

## What reviewers say

### Post

[App page](https://appshunter.io/ios/app/post-tonal-tool-kit/id626579886)

**Currently charting:** #196 Top Paid · Music (US App Store)

This app provides tools for analyzing post-tonal music, including pitch-class set and tone row calculations. It helps users identify Forte names, normal forms, prime forms, and relationships within musical sets.

**Highlights:** PC Set Calculator, Subset/Superset Calculator, Matrix Calculator, Forte name analysis, Normal form calculation, Prime form identification, Tone row analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Piano Visualizer

[App page](https://appshunter.io/ios/app/piano-visualizer/id6739029911)

Experience piano music like never before with detailed 3D animations of a grand piano's inner workings. Watch any music or MIDI file come to life with real-time, mechanically accurate visuals, including augmented reality and tactile feedback options.

**Highlights:** Mechanically accurate 3D grand piano model, Versatile audio and MIDI input, Live, real-time animation, Transparent view mode, Augmented Reality mode, Tactile feedback (iOS)

**In-app purchases:** none


## Frequently asked questions

### Is Post free?

Post costs $4.99, with no in-app purchases.

### Is Piano Visualizer free?

Piano Visualizer costs $9.99, with no in-app purchases.

### Which has better reviews, Post or Piano Visualizer?

Post is rated higher. Post averages 4.3 out of 5 from 6 ratings, while Piano Visualizer averages 1.0 from 1 ratings.

### Do Post or Piano Visualizer have ads?

Neither Post nor Piano Visualizer shows ads.

### Which is updated more often, Post or Piano Visualizer?

Post ships an update every 2 months, and Piano Visualizer every 3 months. Most recently, Post was updated on August 9, 2026 and Piano Visualizer on September 9, 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.*