English Mastery vs DevGuide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
English Mastery
Enhance your English proficiency for exams like TOEIC, IELTS, and TOEFL, or for everyday communication. Access a vast vocabulary database, comprehensive grammar lessons, and effective speaking practice tools. Prepare for tests with realistic mock exams and detailed explanations.
- Vast vocabulary database with 100,000 words
- Interactive vocabulary learning with flashcards and games
- Comprehensive grammar lessons with detailed explanations
- Effective speaking practice with scoring and feedback
- Realistic TOEIC mock tests and section-specific practice
- Personalized word lists and lock screen reminders
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English Mastery - TOEIC, IELTS, TOEFL: Boost Your English Skills! Master English for TOEIC, IELTS, TOEFL and real-world communication with English Mastery! This all-in-one app provides comprehensive tools to expand your vocabulary, solidify your grammar, perfect your speaking, and ace your exams. Whether you're aiming for a high TOEIC, IELTS or TOEFL score, or simply want to become a more confident English speaker, English Mastery has you covered. ***** KEY FEATURES **** VAST VOCABULARY DATABASE: Unlock nearly 100,000 English words with detailed definitions. Our extensive dictionary is categorized to help you focus: • TOEIC 600 Essential Words: Crucial for TOEIC success. • 3000 Common English Words: Strong foundation for daily communication. • IELTS Vocabulary: Targeted word lists for the IELTS exam. • Specialized Vocabulary: Terms for Tourism & Hospitality, Accounting, IT, Finance & Banking, and Medical fields. • Interactive Learning: Utilize flashcards and engaging vocabulary games for retention. • Personalized Word Lists: Create custom vocabulary sets for focused practice. • Lock Screen Reminders: Learn on the go with word reminders. COMPREHENSIVE GRAMMAR LESSONS: From basic to advanced, our grammar section covers it all. Each lesson includes detailed explanations and practice exercises with in-depth answer breakdowns for true understanding. EFFECTIVE SPEAKING PRACTICE: Improve fluency and pronunciation. • Topic-Based Practice: Engage in conversations on various themes. • Custom Sentence Creation: Create and practice your own sentences. • Scoring and Evaluation: Receive immediate feedback and scores to track progress. TOEIC EXAM PREPARATION: Prepare confidently with up-to-date resources. • Latest TOEIC Format: All materials follow the current exam structure. • Detailed Answer Explanations: Understand why each answer is correct. • Realistic Mock Tests: Experience the actual exam environment with full-length simulations. • Section-Specific Practice: Target weaknesses in individual sections. • Short Quizzes & Full Tests: Choose based on your study schedule. WHY CHOOSE ENGLISH MASTERY - TOEIC, IELTS, TOEFL? English Mastery is your ultimate English learning companion, offering robust features for all skill levels. Our app combines extensive content with interactive tools, making learning engaging and effective. Achieve your English language goals! DOWNLOAD ENGLISH MASTERY - TOEIC, IELTS, TOEFL TODAY AND TRANSFORM YOUR ENGLISH LEARNING JOURNEY! --- TERMS OF AUTO-RENEWABLE SUBSCRIPTION (English Mastery Membership): • English Mastery offers Auto-Renewable Subscriptions. • Billed monthly or every 3 months. A one-time payment option is also available. • Subscriptions automatically renew unless canceled 24 hours prior to period end. Subscribers get full access. • Fee charged to your iTunes account on purchase confirmation. Manage subscriptions/auto-renewal in Account Settings. • Active subscriptions cannot be canceled. Refunds not provided for unused portions. • Privacy Policy: https://toeicexamstore.com/privacy/englishtestprivacy.pdf • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ TOEIC is a registered trademark of Educational Testing Service (ETS). This app is not endorsed by ETS.
DevGuide
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DevGuide – Interview Preparation for Developers Prepare confidently for software engineering interviews with DevGuide, a structured learning app built for developers at all levels. DevGuide provides concise, interview-focused questions and answers across modern programming languages and frameworks — optimized for quick revision and deep understanding. What You’ll Learn Swift & SwiftUI – Optionals, closures, concurrency, protocols Java – Collections, Streams, JVM, concurrency Android – Kotlin, Java, Jetpack, architecture SQL – Joins, indexes, transactions, performance Python – OOP, async, data structures React & React Native – Hooks, state, performance Flutter – Widgets, state management Angular, Vue, Svelte, Node.js, Go, C#, PHP & more Key Features 1000+ curated interview questions Short, clear answers for fast revision Search & smart category filters Mark favorites for quick access Designed for iPhone & iPad Real-world interview concepts Why DevGuide? No long tutorials — only what interviewers ask Structured by topics & categories Perfect for last-minute prep or daily practice Clean, distraction-free UI Whether you’re preparing for your first interview or aiming for your next big role, DevGuide helps you revise smarter and faster. Built by developers, for developers.
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Verdict
The clearest difference is in-app purchases: DevGuide at none against English Mastery's 5. DevGuide also leads on ads (none vs shown) and update cadence (every 3 days vs every 10 days). English Mastery's advantage is iOS requirement (15.5 vs 18.2). On price 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
Both are free to download. English Mastery sells 5 in-app purchases, starting at $6.99 per month. DevGuide asks for nothing beyond the download.
English Mastery ships an update every 10 days, DevGuide every 3 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | English Mastery | DevGuide |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (444 ratings) — better | — |
| Positive reviews | 72.6% of reviews | — |
| Number of ratings | 444 — better | — |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 18.2 |
| Further details — not scored | ||
| Size | 119 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Doan Dat | Ramasamy M |
Bugs and requests
English Mastery
Reported bugs
12 issues- Ads blocking question content and answers
- Ads appearing even after purchasing premium
- Answers saved incorrectly during full tests
- App crashes on question 180+ during full tests
- MacBook button click not registering
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- Audio not starting or being cut off
- Voice recording not capturing properly
- App not launching after updates
- Incorrect answer scoring despite correct selections
- Language settings not applying consistently across all sections
- Missing audio files in some lessons
- Automatic progression without user input in listening sections
Requested features
10 requests- Offline download capability for lessons
- Web version of the application
- Speaking/conversation practice scenarios
- Ability to increase font size on MacOS
- Slide view for iPad note-taking
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- Spider chart for overall skill assessment
- More recent ETS test sets (2022-2023)
- Swipe gesture for flashcard navigation
- Remove ads without premium subscription
- Better grammar explanation for Parts 5-6
DevGuide
Not enough reviews yet to summarise bugs or requests.
In-app purchases
English Mastery
- Monthly Premium Membership$6.991 Month
- 3-Month Premium Membership3 Days trial$14.993 Months
- Annual Premium Membership3 Days trial$34.991 Year
- Remove Ads$19.99
- Lifetime Membership$79.99
DevGuide
No in-app purchases
Questions
Is English Mastery free?
Is DevGuide free?
Do English Mastery or DevGuide have ads?
Which is updated more often, English Mastery or DevGuide?
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