# Read Notes vs Calc Pass

The clearest difference is ads: Calc Pass at none against Read Notes's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Read Notes sells 1 one-off in-app purchase and Calc Pass sells 3 in-app purchases, starting at $49.99 per 3 months. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Read Notes | Calc Pass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/read-notes-sight-reading/id6744292747/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 73 MB | 38 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [minjae Lee](https://appshunter.io/developer/1692529440) | [Clinical Biostats, LLC.](https://appshunter.io/developer/6798880948) |

## What reviewers say

### Read Notes

[App page](https://appshunter.io/ios/app/read-notes-sight-reading/id6744292747)

Enhance your musical abilities with interactive games focused on sight-reading, ear training, and chord recognition. Practice essential music theory concepts and improve your performance on any instrument with daily exercises and challenges.

**Highlights:** Sight reading practice with multiple clefs, Ear training for notes, intervals, and chords, Chord recognition and virtual keyboard, 100-song library with challenges, Progress tracking and leaderboards, Multiple difficulty levels and practice modes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $7.99 | one-time |


### Calc Pass

[App page](https://appshunter.io/ios/app/calc-pass/id6798880946)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcPass+ 3 Months | $49.99 | per 3 months |
| CalcPass+ 6 Months | $89.99 | per 6 months |
| CalcPass+ 1 Year | $149.99 | per year |


## Frequently asked questions

### Is Read Notes free?

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

### Is Calc Pass free?

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

### Do Read Notes or Calc Pass have ads?

Read Notes shows ads; Calc Pass does not.

### Which is updated more often, Read Notes or Calc Pass?

Read Notes ships an update weekly, and Calc Pass weekly. Most recently, Read Notes was updated on October 10, 2026 and Calc Pass on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*