Market US

Platform Android

Reference Apps

112 apps

Definition

Looking up a constant, a statute, or a word should not require an account to read one page. Reference apps are dictionaries, unit tables, field manuals, and offline encyclopaedias. Education is a course; Books is a narrative; News is today's edition. The test is whether the entry cites something and whether the pack downloads. User-edited wikis go stale in public. If the app is a thin wrapper around a website, it will fail in a basement. Revision dates on an entry are part of the answer.

Common tasks

Look up a word, unit or statute without opening a browser
Download a pack for a field trip or a flight
Cite a source or a revision date on an entry
Search inside a manual you already paid for

Common constraints

User-edited entries go stale
Legal and medical texts may be incomplete for your region
Website wrappers die offline

Top current products

Dictionary.com: English Words Curiosity Media Improve your English vocabulary with a comprehensive dictionary and thesaurus app.

iPhone · iPad · Android

4.8 · 327K Free

Enriched

Wikipedia Wikimedia Foundation A free encyclopedia app that allows users to access and share knowledge on various topics

iPhone · iPad · Android

4.3 · 6.2K Free

Enriched

Star Walk 2 Pro: Sky Map Live Vito Technology Inc. Education

iPhone · iPad · Android

4.7 · 67K Paid · In-app purchases

Store data

Pleco Chinese Dictionary Pleco Inc. A Chinese learning companion with dictionary, document reader, and flashcard features.

iPhone · iPad · Android

4.7 · 1.9K Free · In-app purchases

Enriched

Ancestry: Family History & DNA Ancestry.com Discover and research your family history and ethnic origins

iPhone · iPad · Watch · Android

4.8 · 638K Free · In-app purchases

Enriched

Dictionary. Farlex, Inc. A dictionary and thesaurus app with offline access and translation capabilities

iPhone · iPad · Android

4.8 · 14K Free · In-app purchases

Enriched

Google Translate Google Google Translate is a language translation app that can help users communicate in multiple

iPhone · iPad · Android

4.3 · 83K Free

Enriched

Gospel Library The Church of Jesus Christ of Latter-day Saints Reference

iPhone · iPad · Android

4.4 · 13K Free

Store data

JW Library Watchtower Bible and Tract Society of New York, Inc. Reference

iPhone · iPad · Android

4.8 · 47K Free

Store data

FamilySearch Memories FamilySearch International Reference

iPhone · iPad · Android

4.8 · 19K Free

Store data

FamilySearch Tree FamilySearch International Reference

iPhone · iPad · Watch · Android

4.8 · 499K Free

Store data

Reverso translate and learn Theo Hoffenberg Reference

iPhone · iPad · Watch · Android

4.7 · 3.6K Free · In-app purchases

Store data

Oxford Dictionary & Thesaurus MobiSystems, Inc. Reference

iPhone · iPad · Android

4.6 · 28K Free · Subscription

Store data

Legal Dictionary Farlex, Inc. Reference

iPhone · iPad · Android

4.7 · 1.3K Free · In-app purchases

Store data

Idioms and Slang Dictionary Farlex, Inc. Reference

iPhone · iPad · Android

4.7 · 1.1K Free · In-app purchases

Store data

Dictionnaire Français. Farlex, Inc. Reference

iPhone · iPad · Android

4.5 · 4K Free · In-app purchases

Store data

Talk & Translate AI Translator MobiSystems, Inc. Reference

iPhone · iPad · Android

4.5 · 12K Free · Subscription

Store data

Solar Walk Lite - Planetarium Vito Technology Inc. Reference

iPhone · iPad · Android

4.6 · 32K Free

Store data

Билеты ПДД 2026: экзамен ГИБДД Amayama Auto LLC A driving exam preparation app

iPhone · iPad · Android

4.8 · 6.8K Free

Enriched

TV Show & Movie Tracker Jonathan ANTOINE Reference

iPhone · iPad · Android

4.7 · 961 Free · In-app purchases

Store data

Satellite Tracker by Star Walk Vito Technology Inc. Reference

iPhone · iPad · Android

4.6 · 69K Free · Subscription

Store data

Glorify: Devotional & Prayer Tupoe LTD Reference

iPhone · iPad · Android

4.9 · 98K Free · In-app purchases

Store data

DeepL Translate DeepL SE Reference

iPhone · iPad · Android

4.8 · 13K Free · In-app purchases

Store data

Sky Tonight - Stargazing Guide Vito Technology Inc. A stargazing guide app that helps users identify stars, planets, and constellations, and

iPhone · iPad · Android

4.8 · 74K Free · In-app purchases

Enriched

Compare

App	Price	Platforms	Rating	Offline	Account
Dictionary.com: English Words	Free	iPhone · iPad · Android	4.8	Unknown	Unknown
Wikipedia	Free	iPhone · iPad · Android	4.3	Unknown	Unknown
Star Walk 2 Pro: Sky Map Live	Paid · In-app purchases	iPhone · iPad · Android	4.7	Unknown	Unknown
Pleco Chinese Dictionary	Free · In-app purchases	iPhone · iPad · Android	4.7	Unknown	Unknown
Ancestry: Family History & DNA	Free · In-app purchases	iPhone · iPad · Watch · Android	4.8	Unknown	Unknown

Recently updated

Glorify: Devotional & Prayer Tupoe LTD Reference

iPhone · iPad · Android

4.9 · 98K Free · In-app purchases

Store data

Pocket Prep Professional 2026 Pocket Prep, Inc. Education

iPhone · iPad · Android

4.8 · 7K Free · In-app purchases

Store data

Numerade - Homework Help Numerade Labs Inc Education

iPhone · iPad · Android

4.3 · 643 Free · In-app purchases

Store data

Airport Guides Gregory Stoll Travel

iPhone · iPad · Android

4.2 · 44 Free · In-app purchases

Store data

SpanishDictionary.com Learning Curiosity Media Learn Spanish with interactive lessons and exercises

iPhone · iPad · Watch · Android

4.8 · 199K Free · In-app purchases

Enriched

Pleco Chinese Dictionary Pleco Inc. A Chinese learning companion with dictionary, document reader, and flashcard features.

iPhone · iPad · Android

4.7 · 1.9K Free · In-app purchases

Enriched

Google Translate Google Google Translate is a language translation app that can help users communicate in multiple

iPhone · iPad · Android

4.3 · 83K Free

Enriched

CloudLibrary OCLC Book

iPhone · iPad · Android

4.8 · 256K Free

Store data

Related jobs

Coverage

112 apps

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View JSON

GET /api/v3/categories/reference

{
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  "canonical_url": "https://appcorpus.com/categories/reference",
  "category_id": "reference",
  "label": "Reference",
  "definition": "Looking up a constant, a statute, or a word should not require an account to read one page. Reference apps are dictionaries, unit tables, field manuals, and offline encyclopaedias. Education is a course; Books is a narrative; News is today's edition. The test is whether the entry cites something and whether the pack downloads. User-edited wikis go stale in public. If the app is a thin wrapper around a website, it will fail in a basement. Revision dates on an entry are part of the answer.",
  "app_count": 112,
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}