# Standard Notation Calculator vs Dr.Ahmed Esmail Academy

The clearest difference is update cadence: Dr.Ahmed Esmail Academy at every 6 weeks against Standard Notation Calculator's every 9 months. Standard Notation Calculator's advantage is iOS requirement (10.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Standard Notation Calculator ships an update every 9 months, Dr.Ahmed Esmail Academy every 6 weeks. The most recent releases landed on October 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Standard Notation Calculator | Dr.Ahmed Esmail Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 6 weeks** |
| Size | 28 MB | 274 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Sattar](https://appshunter.io/developer/1458483953) | [Mohamed Ahmed Radwan](https://appshunter.io/developer/1586606710) |

## What reviewers say

### Standard Notation Calculator

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Dr.Ahmed Esmail Academy

[App page](https://appshunter.io/ios/app/drahmed-esmail-academy/id6444013824)

**Features:** macOS Compatibility, 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 Dr.Ahmed Esmail Academy free?

Dr.Ahmed Esmail Academy is free to download, with no in-app purchases.

### Do Standard Notation Calculator or Dr.Ahmed Esmail Academy have ads?

Neither Standard Notation Calculator nor Dr.Ahmed Esmail Academy shows ads.

### Which is updated more often, Standard Notation Calculator or Dr.Ahmed Esmail Academy?

Standard Notation Calculator ships an update every 9 months, and Dr.Ahmed Esmail Academy every 6 weeks. Most recently, Standard Notation Calculator was updated on October 27, 2026 and Dr.Ahmed Esmail Academy on October 14, 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.*