# Standard Notation Calculator vs Calcsharp Pro

The clearest difference is price: Standard Notation Calculator at Free against Calcsharp Pro's $1.99. Standard Notation Calculator also leads on iOS requirement (10.0 vs 16.0). Calcsharp Pro's advantage is update cadence (every 2 days vs every 9 months). On ads, in-app purchases and device support there is nothing between them.

Standard Notation Calculator is free to download; Calcsharp Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Standard Notation Calculator ships an update every 9 months, Calcsharp Pro every 2 days. The most recent releases landed on September 13, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Standard Notation Calculator | Calcsharp Pro |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 days** |
| Size | 28 MB | 4 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Sattar](https://appshunter.io/developer/1458483953) | [Nikola Stepan](https://appshunter.io/developer/398370680) |

## What reviewers say

### Standard Notation Calculator

[App page](https://appshunter.io/ios/app/standard-notation-calculator/id1601032021)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calcsharp Pro

[App page](https://appshunter.io/ios/app/calcsharp-pro/id1644401194)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Standard Notation Calculator free?

Standard Notation Calculator is free to download, with no in-app purchases.

### Is Calcsharp Pro free?

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

### Do Standard Notation Calculator or Calcsharp Pro have ads?

Neither Standard Notation Calculator nor Calcsharp Pro shows ads.

### Which is updated more often, Standard Notation Calculator or Calcsharp Pro?

Standard Notation Calculator ships an update every 9 months, and Calcsharp Pro every 2 days. Most recently, Standard Notation Calculator was updated on September 13, 2026 and Calcsharp Pro on September 22, 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.*