# calcMod vs Essential Words

The clearest difference is price: Essential Words at Free against calcMod's $0.99. Essential Words also leads on update cadence (every 2 days vs every 6 days). calcMod's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Essential Words is free to download; calcMod costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

calcMod ships an update every 6 days, Essential Words every 2 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | calcMod | Essential Words |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.5 (76 ratings)](https://appshunter.io/ios/app/essential-words-4000/id6449967910/reviews)** |
| Number of ratings | — | **76** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 days | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 1 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alain Cardinaux](https://appshunter.io/developer/1443066124) | [Son Le](https://appshunter.io/developer/1595071046) |

## What reviewers say

### calcMod

[App page](https://appshunter.io/ios/app/calcmod-prox/id1443066125)

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

**In-app purchases:** none


### Essential Words

[App page](https://appshunter.io/ios/app/essential-words-4000/id6449967910)

Master 4000 essential English words through definitions, examples, and audio pronunciations. Learn vocabulary in context with engaging stories and bookmark words for review. Ideal for all English learners.

**Highlights:** 4000 essential English words, Detailed definitions and examples, Audio pronunciation, Engaging stories for context, Bookmark words for review

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is calcMod free?

calcMod costs $0.99, with no in-app purchases.

### Is Essential Words free?

Essential Words is free to download, with no in-app purchases.

### Do calcMod or Essential Words have ads?

Essential Words shows ads; calcMod does not.

### Which is updated more often, calcMod or Essential Words?

calcMod ships an update every 6 days, and Essential Words every 2 days. Most recently, calcMod was updated on November 2, 2026 and Essential Words on November 3, 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.*