Comparison

Lexicon vs DooDoo دودو

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lexicon

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
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Master Every Aspect of the English Language. Lexicon: Master English is the ultimate study companion for students, professionals, and language enthusiasts. Going far beyond basic grammar and vocabulary, Lexicon offers a massive, university-grade curriculum covering 16 distinct disciplines of English. Whether you are analyzing Shakespeare, preparing a business presentation, or studying linguistic evolution, Lexicon has a test for you. Why Choose Lexicon? UNRIVALED CURRICULUM DEPTH: Access hundreds of topics organized into 16 comprehensive subjects: The Fundamentals: Master Grammar (Word Types, Tenses), Vocabulary (Synonyms, Idioms), Spelling & Usage (Roots, Confusing Words), and Reading Comprehension. Advanced Writing Skills: Perfect your craft with Writing Mechanics (Punctuation, Structure), Creative Writing (Story Elements, Character Development), and Journalism (News Writing, Media Literacy). Literature & Culture: Dive deep into Literary Analysis (Poetry, Devices), Shakespeare Studies (Plays, Sonnets, Language), and Mythology & Folklore (Greek, Roman, Archetypes). Professional Mastery: Excel in your career with Business English (Professional Writing, Workplace Communication) and Speech & Debate (Public Speaking, Argumentation). Academic & Theoretical English: Tackle high-level subjects including Rhetoric & Logic (Persuasion, Fallacies), Academic Research (Citations, Sourcing), Linguistics (Phonetics, Semantics), and the History of English (Old/Middle English, Evolution). INTERACTIVE LEARNING TOOLS: Diverse Question Formats: From multiple-choice to error identification and concept matching. Smart Hints System: Stuck on a logical fallacy or a Shakespearean term? Watch a quick video to get a definition or clue without spoiling the answer. Detailed Explanations: Learn the "why" behind every answer. Whether it's the etymology of a word or the rule for a semicolon, detailed feedback ensures you retain information. Progress Tracking: Monitor your proficiency across specific subjects. See exactly where you excel (e.g., Creative Writing) and where you need practice (e.g., Phonetics). WHO IS LEXICON FOR? Literature & Arts Students: Perfect for AP English, A-Level English Literature, or university students studying Humanities. Professionals: Essential for anyone wanting to improve business emails, public speaking confidence, and workplace rhetoric. Aspiring Writers & Journalists: Sharpen your storytelling, learn to avoid logical fallacies, and master the rules of editing. History & Language Buffs: Explore the fascinating origins of English, from Beowulf to modern semantics. ESL Learners: Advanced learners ready to move beyond basic fluency into native-level cultural and academic nuances. Topics Include: Verb Tenses & Sentence Structure Rhetorical Persuasion & Logical Fallacies Greek & Roman Mythology Phonetics & Semantics Shakespearean Language & Plays News Writing & Media Literacy Citations & Academic Sourcing Public Speaking & Debate Strategies Download Lexicon today and unlock the full power of the English language!

About

DooDoo دودو

Features
Read full description

دودو DooDoo - ذاكر انجليزي المنهج بذكاء ومتعة دودو مش مجرد تطبيق لتعلم الإنجليزي، ده رفيقك في مذاكرة منهج المدرسة لطلاب المرحلة الإعدادية. بدل قوائم الكلمات العشوائية، دودو بيمشي معاك خطوة بخطوة على نفس وحدات ودروس صفك، وبيحول المذاكرة لعادة يومية ممتعة. منهجك.. مترتب ومتقسم • وحدات ودروس منظمة حسب صفك الدراسي (الأول - الثاني - الثالث الإعدادي) • حدد سنتك الدراسية مرة واحدة، وكل المحتوى يظبط نفسه على مستواك • دروس قواعد (Grammar) تفاعلية: القاعدة، الأمثلة، وتمارين ترتيب وتكوين جمل بطاقات كلمات تفاعلية • راجع مفردات كل درس ببطاقات: الكلمة، المعنى، مثال، والنطق الصحيح • اسحب البطاقة واحفظ أسرع وتذكر أكتر اختبارات بنفس أسلوب امتحان المدرسة • اختيار من متعدد • أكمل الفراغ • توصيل الكلمات • اكتب الجملة • ألغاز المرادفات • بعد كل إجابة تعرف الصح وتفهم غلطتك فورا حافز يومي يخليك مستمر • سلسلة أيام متتالية (Streak) تبني عادة المذاكرة • اجمع نقاط القوة وافتح شارات وإطارات مميزة لصورتك • تنبيهات بتفكرك بمذاكرتك اليومية تحديات ولوحة متصدرين • تحديات بوقت محدد ومكافآت للي يخلص بدري • ترتيب أسبوعي وشهري ونافس زمايلك على المركز الأول دودو برو DooDoo Pro • تعلم بدون إعلانات • قلوب غير محدودة • كل التحديات المميزة • اصنع امتحانك: اختار الدروس وعدد الأسئلة وراجع الأسئلة اللي غلطت فيها قبل كده دودو مناسب لطلاب الإعدادي اللي عايزين يرفعوا درجاتهم في الإنجليزي، ولأولياء الأمور اللي بيدوروا على طريقة مذاكرة آمنة وممتعة لأولادهم. حمل دودو دلوقتي وخلي 5 دقائق يوميا تفرق في درجتك! للدعم والاستفسارات: doodoo.crp@gmail.com

Screenshots

Lexicon4 screens
DooDoo دودو4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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

Scorecard2 real differences · 7 level
Lexicon versus DooDoo دودو: the parameters behind the verdict, then further details
ParameterLexiconDooDoo دودو
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 3 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size13 MB92 MB
Age rating4+4+
DeveloperLojas Software CorpAbdullah khidr

In-app purchases

8 purchases

Lexicon

One-time8
  • Page Turner$0.99
  • Inkwell & Quill$0.99
  • Deus Ex Machina$1.99
Show 5 more
  • Scholar's Anthology$1.99
  • The Lost Tomes$3.99
  • Speed Reader$3.99
  • The Grand Encyclopedia$7.99
  • The Ghostwriter$7.99
3 purchases

DooDoo دودو

Subscriptions3
  • DooDoo Pro Monthly$0.991 Month
  • DooDoo Pro Term$2.993 Months
  • DooDoo Pro Yearly$5.991 Year

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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