# Lexicon vs DooDoo دودو

The clearest difference is update cadence: DooDoo دودو at every 3 days against Lexicon's every 3 weeks. DooDoo دودو also leads on iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Lexicon sells 8 one-off in-app purchases and DooDoo دودو sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Lexicon ships an update every 3 weeks, DooDoo دودو every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Lexicon | DooDoo دودو |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lexicon-master-english/id6757132710/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 92 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lojas Software Corp](https://appshunter.io/developer/1799458054) | [Abdullah khidr](https://appshunter.io/developer/1854544400) |

## What reviewers say

### Lexicon

[App page](https://appshunter.io/ios/app/lexicon-master-english/id6757132710)

This app offers a comprehensive English language curriculum with interactive tools for grammar, writing, literature, and professional communication. It provides detailed explanations, progress tracking, and diverse question formats to enhance learning.

**Highlights:** University-grade English curriculum, 16 distinct disciplines covered, Interactive learning tools, Diverse question formats, Smart hints system with video explanations, Detailed feedback for retention, Progress tracking across subjects

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Page Turner | $0.99 | one-time |
| Inkwell & Quill | $0.99 | one-time |
| Deus Ex Machina | $1.99 | one-time |
| Scholar's Anthology | $1.99 | one-time |
| The Lost Tomes | $3.99 | one-time |
| Speed Reader | $3.99 | one-time |
| The Grand Encyclopedia | $7.99 | one-time |
| The Ghostwriter | $7.99 | one-time |


### DooDoo دودو

[App page](https://appshunter.io/ios/app/doodoo/id6768412335)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DooDoo Pro Monthly | $0.99 | per month |
| DooDoo Pro Term | $2.99 | per 3 months |
| DooDoo Pro Yearly | $5.99 | per year |


## Frequently asked questions

### Is Lexicon free?

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

### Is DooDoo دودو free?

DooDoo دودو is free to download, with in-app purchases available.

### Do Lexicon or DooDoo دودو have ads?

Both Lexicon and DooDoo دودو show ads.

### Which is updated more often, Lexicon or DooDoo دودو?

Lexicon ships an update every 3 weeks, and DooDoo دودو every 3 days. Most recently, Lexicon was updated on October 31, 2026 and DooDoo دودو on October 31, 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.*