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Enfour

For language professionals, writers, and students requiring authoritative, offline-capable dictionaries and thesauruses.

33apps3.5(6.6K) Multi-theme

Snapshot

Who is Enfour?

Providing authoritative, offline-capable linguistic and professional reference tools for writers, students, and specialists.

Target audience

Language professionalsWritersStudents requiring authoritative

Top rival

MobiSystems

Other rivals

Portfolio

Free 4
33
apps
Reference20
辞書/辞典/その他3
Business2
Education2

Last updated

Roget's II: New Thesaurus

v1.5.2

1.5y ago

Active

Publisher DNA

What defines Enfour?

Publisher DNA

Primary focus

Digital reference and linguistic tools

Scale

studio

Target audience

Language professionals, writers, and students requiring authoritative, offline-capable dictionaries and thesauruses.

Active

Portfolio momentum

Released 29 updates in the last 6 months with the most recent major release occurring 5 days ago, indicating an active maintenance and optimization cycle.

Last release 5d agoActive apps 14Abandoned 7

Portfolio

What does Enfour ship?

Apps

33 apps analysed

Distributed across 12 markets, strongest in Europe.

Based on 4 of 33 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (3)

  • United States4 / 4
  • Mexico2 / 4
  • Brazil1 / 4

Europe (7)

  • Spain2 / 4
  • France1 / 4
  • Germany1 / 4
  • Italy1 / 4
  • Netherlands1 / 4
›+2 more europe markets
  • Portugal1 / 4
  • Sweden1 / 4

Asia-Pacific (2)

  • Japan4 / 4
  • South Korea1 / 4

Core markets (4/4 apps)

JapanUnited States

Rivals

Who does Enfour compete with?

The rivals identified

Nemeses(3)

Farlex

known forDictionary.

4 apps4.9Reference

Both apps target students and writers needing reliable word definitions, creating direct competition for the same user base despite different monetization models.

Curiosity Media

known forDictionary.com: English Words

1 app4.2Reference

Both apps target students and professionals seeking English language references, creating direct competition for users prioritizing either offline reliability or massive, ad-supported content libraries.

FB PUBLISHING

known forBurmese-English Dictionary

3 apps4.6Reference

This app serves as a specialized translation utility for Burmese speakers, complementing the general-purpose linguistic reference focus of Companion Synonyms.

Contenders(20)

MobiSystems

known forOxford Dictionary & Thesaurus

1 app4.3Reference

Both apps target academic and professional users requiring offline-capable, authoritative language references, creating direct competition for the same user base.

INVENTO ONE PRIVATE

known forEnglish Dictionary *

1 app4.6Reference

Both apps target students and professionals with offline-capable English language databases, creating direct competition for users seeking portable reference tools.

JDMI Kft.

known forAdvanced English Dictionary.

3 apps4.8Reference

Both applications target students and professionals with linguistic reference tools, competing directly for users seeking word definitions and etymologies.

Merriam-Webster

known forMerriam-Webster Dictionary

1 app4.8Reference

Both apps target students and language enthusiasts, competing for the same user base seeking authoritative English reference tools.

MobiSystems

known forCollins Dictionary & Thesaurus

2 apps4.7Reference

This app targets the same professional user base as Companion Synonyms but differentiates through a high-cost, unabridged content model.

Antony Lewis

known forChambers Thesaurus

1 app4.9Reference

Offers a high-capacity offline thesaurus for users who prioritize deep linguistic data over the visual features of American Heritage Dictionary 5.

Bravolol

known forDictionary & Translator

1 app4.7Reference

Both apps compete for users seeking language reference tools, but the rival captures the bilingual market segment that American Heritage® Dictionary ignores by offering translation pairs.

Kirill Evstigneev

known forVocabulary Builder: Apt Words

1 app0.0Reference

Targets advanced learners who want a private, ad-free vocabulary ritual instead of the ad-supported American Heritage Dictionary 5.

Pleco

known forPleco Chinese Dictionary

1 app4.6Reference

Both apps serve language learners and writers requiring offline reference tools, though they target distinct linguistic domains of English and Chinese.

Squircle Apps LLP

known forLookUp: English Dictionary

1 app4.7Reference

Both apps target students and language learners, competing for the same user base seeking English language reference tools.

ZeeAlpha Tech

known forEnglish Dictionary - Offline

1 app4.6Reference

Both apps target students and language learners with freemium reference tools, creating direct competition for users seeking English language definitions and usage resources.

崇伟 柳

known forEtymonline English Dictionary

1 app4.9Reference

Both apps target language enthusiasts and students, competing for the same user base seeking reliable English language reference tools on mobile devices.

Cambridge University Press & Assessment (App)

known forCambridge English Dictionary

1 app3.0Reference

Both apps target language learners and professionals with freemium monolingual dictionary content, creating direct competition for users seeking authoritative English reference tools.

Donik Ariyanto

known forEtymology Dictionary Offline

1 app3.7Reference

Both apps target students and language learners seeking linguistic reference tools, with both providing etymological data as a core utility.

Nasar Kaliyarakath

known forEnglish Dictionary 2.0

1 app1.0Reference

Both apps target users seeking English language reference tools, competing for the same audience on mobile platforms.

Ngoc Anh

known forLatin synonym handbook

1 app0.0Reference

Both applications target language students and enthusiasts, competing for the same user base seeking vocabulary reference tools.

Picup

known forLook Up: Pronunciation Checker & Dictionary

1 app4.9Reference

Both apps target users seeking language reference tools, with Look Up competing for the pronunciation and definition lookup audience through a free, multi-language model.

Puju Dekivadiya

known forEnglish Dictionary : Offline

1 app4.5Reference

Both applications target the same mobile user base seeking English language reference tools, competing directly through free access to dictionary content on iOS devices.

Sajid Ali

known forEnglish Dictionary

1 app4.1Reference

Both applications target the same user base of language learners and professionals by providing free English reference tools, creating direct competition for daily utility.

soumaya Jameleddine

known forVocabulary Builder: 1983

1 app5.0Reference

Both applications target language enthusiasts seeking vocabulary expansion, competing for the same user base through distinct approaches to word discovery and reference.

Same space(34)

Thanh Nguyen

known forSanskrit Etymology Dictionary

2 apps5.0Reference

Sanskrit Etymology bridges academic research with vocabulary learning for a specific language, appealing to the same scholarly audience as American Heritage.

Conem Labs

known forPocket Thesaurus

1 appReference

Provides an offline-only synonym lookup for users who need quick access without data connectivity.

Piet Jonas

known forThesaurus App

2 apps1.9Reference

Offers a lightweight reference tool with specific support for Apple Watch and iPad multitasking.

Power Thesaurus

known forPower Thesaurus

1 appReference

Offers a specialized synonym and antonym lookup tool for users who find the definitions in American Heritage Dictionary 5 insufficient for writing tasks.

Ahmad Rahimi

known forSynonyms - English dictionary

1 app2.5Reference

Targets professional communication by focusing on quick, one-button synonym retrieval.

Aung min Naing

known forEng-Mm Dictionary

1 app4.5Reference

Eng-Mm offers bilingual utility for Myanmar speakers, serving a specific regional need not addressed by the monolingual American Heritage.

Daniel Bryant

known forWord Checker Dictionary

1 app5.0Reference

Specializes in game-state validation rather than general-purpose vocabulary reference.

DeepL SE

known forDeepL Translate

1 app4.7Reference

DeepL Translate serves professional users needing multilingual communication, contrasting with the monolingual focus of American Heritage.

Fabien Maurice

known forWord Checker for Scrabble®

1 app4.8Reference

Targets the competitive word-game segment that requires official, verified word lists.

FemeAves

known forTricky Brain: Annoying Puzzle

1 app3.8Games

This app competes for the same logic-focused user base by blending traditional puzzle mechanics with prank-oriented, unconventional humor.

Huong Nguyen

known forMastering French Synonyms

2 apps0.0Reference

This app functions as a specialized educational subset for French learners, providing granular context that complements the broader scope of Companion Synonyms.

ILHWAN CHO

known forAll English Dictionary

1 app4.8Reference

All English Dictionary aggregates multiple external sources, offering a broader search scope than the single-source database of American Heritage.

john mckenna

known forWord Radicals: Etymology

1 app5.0Reference

Word Radicals explores historical word origins, providing deeper etymological context than the standard definitions in American Heritage.

Jordan Zeleny

known forThesaurus Keyboard - Synonyms

1 app4.2Reference

This keyboard-integrated tool competes for the same writing-focused audience but shifts the utility from a standalone reference app to a system-wide input extension.

JoyGame Studio

known forBrain Puzzle 3: Crazy Mind

2 apps4.6Games

This app targets the same casual brain training audience as the source but utilizes a free-to-play model with high-frequency, varied puzzle content.

JUNPING

known forContext - Accurate Word Lookup

1 app2.3Reference

Uses camera-based lookup to provide definitions for users who need real-time context for words found in physical media.

KAT IP PTY

known forWord Hippo

1 app4.9Reference

Offers a broader set of word-game tools that extend the utility of a standard thesaurus.

LEAP STUDIO

known forThesaurus dictionary- Wordloop

1 app4.5Reference

Integrates directly into the system keyboard to remove the friction of switching between apps.

Learning Learn

known forVocabulary Builder by Learning

1 app4.7Reference

Targets the same professional and student audience as American Heritage Dictionary 5 but focuses on daily habit formation.

Magoosh

known forVocabulary Builder - Test Prep

1 app4.6Reference

Focuses on test preparation for students who use American Heritage Dictionary 5 for academic reference.

Matthew Williamson

known forE-Talk: English Pronunciation

1 app0.0Reference

E-Talk offers a basic pronunciation library for learners, though it lacks the active development and scale of American Heritage.

Mert TUZER

known forFree Offline English Dictionary

1 app5.0Reference

Free Offline English Dictionary provides a free, offline-capable monolingual reference that mirrors the core utility of American Heritage without the paid barrier.

Mitch Waite

known foriBird Pro Guide to Birds

1 app4.3Reference

iBird Pro targets offline-first users who require specialized, high-capacity reference databases for field identification.

Petter Scott

known forEnglish Pronunciation IPA

1 app4.5Reference

English Pronunciation IPA focuses on phonetic mastery, acting as a specialized training supplement to the audio pronunciations in American Heritage.

Phona

known forSay It: English Pronunciation

1 appReference

Say It provides interactive pronunciation feedback, shifting from the passive lookup model of American Heritage to active training.

Phuc Pham

known forThesaurus: Synonym Keyboard

1 app0.0Reference

Provides a system-wide keyboard utility that complements the source app's reference-first approach.

rakudoor

known forThesaurus Free

1 app3.7Reference

Provides visual mapping of word connections for users who prefer non-linear reference methods.

SAYAN YAZILIM TEKNOLOJI ANONIM SIRKETI

known forVocabulary Builder by Atlas

1 app4.8Reference

Provides a structured learning path for users who want to move beyond simple definitions found in American Heritage Dictionary 5.

Tatsuji Ueda

known forWord Word: Personal Dictionary

1 app3.2Reference

Allows users to build a custom dictionary, serving as a personal repository for words found in American Heritage Dictionary 5.

Trung Nguyen

known forEnglish Synonym and Antonym

1 app0.0Reference

Focuses on the test-prep market by providing deep linguistic analysis for a curated headword list.

Urban Dictionary

known forUrban Dictionary

1 app4.5Reference

Provides slang and cultural context that American Heritage Dictionary 5 lacks, catering to users who need to understand modern, informal language.

Vocabulous US

known forWord of the Day・Vocabulary

1 app4.7Reference

Focuses on daily vocabulary growth for the same user base that uses American Heritage Dictionary 5 for reference.

WordReference.com

known forWordReference Dictionary

1 app4.2Reference

WordReference provides linguistic context through community-driven forums, supplementing the static definitions found in American Heritage.

Yauhen Siarko

known forthe English Dictionary Offline

1 app0.0Reference

Prioritizes privacy and focus through a completely offline, minimalist language toolkit.

Frequently asked questions

How many apps does Enfour publish?
Enfour has 33 apps tracked by Marlvel, primarily in the Reference category.
What kind of apps does Enfour make?
Enfour's portfolio is concentrated in Reference and 辞書/辞典/その他, with an average rating of 3.5/5 across rated apps.
What is Enfour's top app?
By review volume across the portfolio, Roget's II: New Thesaurus is Enfour's best-known app tracked by Marlvel.
In how many countries are Enfour's apps available?
Marlvel has tracked Enfour's apps across 12 countries.

What fed this analysis

Apps analyzed:
22
With full intel:
0
With overview:
22
Website scraped:
yes
Social presence:
no

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Enfour, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Enfour intelligence.” Updated 2026-04-27. https://marlvel.ai/publishers/enfour-inc

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Data licensed under CC-BY-NC 4.0