# Standard Notation Calculator vs How to Pronounce Dictionary

The clearest difference is in-app purchases: Standard Notation Calculator at none against How to Pronounce Dictionary's 2. Standard Notation Calculator also leads on ads (none vs shown) and iOS requirement (10.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. How to Pronounce Dictionary sells 2 in-app purchases, starting at $29.99 per year. Standard Notation Calculator asks for nothing beyond the download.

Standard Notation Calculator ships an update every 9 months, How to Pronounce Dictionary every 5 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Standard Notation Calculator | How to Pronounce Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (10 ratings)](https://appshunter.io/ios/app/how-to-pronounce-dictionary/id6744858052/reviews)** |
| Number of ratings | — | **10** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | — | Ad-supported |
| Size | 28 MB | 63 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Sattar](https://appshunter.io/developer/1458483953) | [JanoGroup LLC](https://appshunter.io/developer/1781461557) |

## What reviewers say

### Standard Notation Calculator

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

**Features:** macOS Compatibility

**In-app purchases:** none


### How to Pronounce Dictionary

[App page](https://appshunter.io/ios/app/how-to-pronounce-dictionary/id6744858052)

Instantly find definitions, synonyms, antonyms, and pronunciations for English words. Save favorites, track your history, and learn new vocabulary with a clean, user-friendly interface. This app works offline for recently accessed words and prioritizes user privacy.

**Highlights:** Fast English definitions, Synonyms and antonyms, Audio pronunciation, Favorites and search history, Offline access for recent words, Clean, distraction-free design

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual - Premium 29.99 7 days free | $29.99 | per year |
| Annual — Premium 1st Month Intro | $29.99 | per year |


## Frequently asked questions

### Is Standard Notation Calculator free?

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

### Is How to Pronounce Dictionary free?

How to Pronounce Dictionary is free to download, with in-app purchases available.

### Do Standard Notation Calculator or How to Pronounce Dictionary have ads?

How to Pronounce Dictionary shows ads; Standard Notation Calculator does not.

### Which is updated more often, Standard Notation Calculator or How to Pronounce Dictionary?

Standard Notation Calculator ships an update every 9 months, and How to Pronounce Dictionary every 5 months. Most recently, Standard Notation Calculator was updated on November 7, 2026 and How to Pronounce Dictionary on October 30, 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.*