Report updated Jun 20, 2026
Dictionary of Collocations
For english language learners seeking to improve natural-sounding speech and writing through structured vocabulary practice.
Dictionary of Collocations is an established reference app that is free with in-app purchases. With a 3.3/5 rating from 3 reviews, it shows polarized user reception.
What is Dictionary of Collocations?
Dictionary of Collocations is an offline reference tool for English language learners on iOS and Android.
Users hire this app to master natural word combinations, but the static format fails to provide the active fluency practice that modern AI-driven tutors now deliver.
Current Momentum
v2.0 · 4mo ago
Steady- Last major update Feb 2025.
- No new feature releases recorded.
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Access to 22,000 entries and 260,000 collocations without internet connectivity
User-defined vocabulary collections for personalized study
Graphical resources and quizzes to test collocation knowledge
How much does it cost?
- iOS: $0.99
- Android: Free with ads
Monetization is split by platform, utilizing a low-cost paid model on iOS and an ad-supported model on Android.
Who Built It?
Bui Hoai Trang
Providing specialized reference tools for English language learners and academic writers. Helping users master vocabulary, idioms, and technical syntax.
Portfolio
13
Apps
What other apps does Bui Hoai Trang make?
Explore the full Bui Hoai Trang report
Portfolio breakdown, audience, momentum, and every app published by Bui Hoai Trang.
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Dictionary of Collocations?
How's The Reference Market?
How does it evolve in the Reference market?
The app maintains a #28 Paid rank in the Reference category (BH/MM), but the lack of review volume suggests limited market penetration compared to general-purpose dictionary rivals.
Rank progression
7 active rankings tracked — 30-day window
Which niche is Dictionary of Collocations in?
to improve English vocabulary and natural phrasing
Explore the full Language Learning Dictionarys niche
Every app in this space — 250 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
This app dominates the reference category with massive scale, directly competing for the same English-learning user base that seeks offline dictionary utility.
Contenders(4)
Competes for the same educational reference audience by offering a bidirectional dictionary and language learning games.
Directly overlaps with our focus on word combinations by specializing in idioms and proverbs for language learners.
Targets the same offline-first language learning demographic with a focus on corpus-based content and frequency analysis.
Competes for the same educational reference market by providing a structured, verified database for language learners.
Same space(3)
Competes for the same language-learning audience by providing specialized mobile tutoring for writing proficiency.
Differentiators
- Provides a highly specialized mobile tutoring environment tailored specifically for high-stakes language proficiency exams
- Maintains a high release cadence to ensure content remains aligned with current exam curriculum standards
Targets the same language-learning demographic but focuses on real-time voice interaction and persona-based coaching.
Differentiators
- Features persona-based language tutors that allow users to practice English in specific, role-played scenarios
- Utilizes real-time voice interaction to bridge the gap between dictionary lookup and actual spoken fluency
Directly competes for the English-learning audience by offering AI-driven conversation practice and feedback.
Differentiators
- Offers real-time AI conversation practice that simulates human interaction for immediate speaking and grammar feedback
- Provides personalized insights and mock testing to track user progress over time more effectively
Compare Dictionary of Collocations against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Dictionary of Collocations
Strengths to defend, gaps to attack
Core Strengths
- Offline-first architecture ensures utility in low-connectivity environments
- Specialized collocation database provides deeper context than general-purpose dictionaries
Critical Frictions
- Lack of native audio support limits pronunciation training
- Fragmented monetization complicates cross-platform feature parity
Growth Levers
- Integration of AI-driven pronunciation feedback would bridge the gap to active speaking tools
- Expansion into B2B educational partnerships for classroom vocabulary lists
Market Threats
- AI-native conversational tutors are rapidly commoditizing static lookup tools
- High-frequency update cadences from exam-prep rivals threaten to make static content obsolete
What are the next best moves?
Ship native audio pronunciation support because competitors offer it → increase user retention
Competitors like Algerian Phrasebook and German English XL leverage audio to provide a more comprehensive learning experience.
Trade-off: Deprioritize the Android ad-network audit — audio features have a higher impact on core value perception.
Unify monetization model across platforms because fragmented pricing creates inconsistent user expectations → improve brand cohesion
Current split between $0.99 iOS paid and Android ad-supported models complicates cross-platform feature parity.
Trade-off: Pause new content entry development — cross-platform consistency is a higher priority for long-term growth.
A counter-intuitive read
The app's static, offline nature is a strength in emerging markets where data costs are high, but the developer is failing to monetize this by ignoring B2B school partnerships.
Feature Gaps vs Competitors
- Native audio support (available in German English XL and Algerian Phrasebook but absent here)
- OCR camera search (available in English Dictionary - Offline but absent here)
Key Takeaways
The app serves a niche need for collocation data, but the lack of audio and interactive feedback leaves it vulnerable to AI-driven rivals, so the PM should prioritize audio integration to defend against conversational tutors.
Where Is It Heading?
Stable
The reference category is consolidating around AI-driven, interactive tools that provide real-time feedback. The subject app remains in maintenance mode, which will lead to gradual user attrition as learners migrate to platforms that offer active speaking practice.
Recent updates focused on stability rather than feature expansion, signaling a maintenance-mode posture in a high-competition category.
The entry of AI-native conversational tutors pulls attention away from static lookup tools, accelerating the obsolescence of text-only dictionary apps.