This are the top 100 most popular Reference apps iOS iTunes USA today December 18, 2018. Browse the charts from other apps genres to find more amazing new apps to download.

1 Ancestry Ancestry
Ancestry.com
2 Whitepages People Search Whitepages People Search
Whitepages.com
3 Sky Guide Sky Guide
Fifth Star Labs LLC
4 Translate Now - Translator Translate Now - Translator
Wzp Solutions Lda
5 Night Sky Night Sky
iCandi Apps
6 30 Day Bible Study 30 Day Bible Study
iDailybread Co., Limited
7 Reverse Phone Lookup Intelius Reverse Phone Lookup Intelius
PeopleConnect, Inc.
8 MyHeritage - Family tree MyHeritage - Family tree
MyHeritage.com
9 D&D Beyond D&D Beyond
Curse, Inc.
10 Spam - Phone & People Lookup Spam - Phone & People Lookup
The Spam Company
11 Camera Translator: Translate+ Camera Translator: Translate+
Vulcan Labs Company Limited
12 Bible · Bible ·
Luni
13 Character Test Pro Character Test Pro
动起体育
14 ASVAB Mastery: AFQT Practice ASVAB Mastery: AFQT Practice
Higher Learning Technologies
15 Dialog - Translate Speech Dialog - Translate Speech
Dream App Studio UAB
16 She Reads Truth She Reads Truth
She Reads Truth
17 Look Up - Reverse Phone Lookup Number & Caller ID Look Up - Reverse Phone Lookup Number & Caller ID
Appsverse Inc.
18 Sibley Birds 2nd Edition Sibley Birds 2nd Edition
mydigitalearth.com
19 Bible † Bible †
HarperCollins Christian Publishing, Inc.
20 iDisciple iDisciple
iDisciple LLC
21 iTranslate Voice iTranslate Voice
iTranslate
22 Daily Bible Verse Devotional Daily Bible Verse Devotional
Impressive Sounding, LLC
23 Muslim Pro: Azan, Quran, Qibla Muslim Pro: Azan, Quran, Qibla
Bitsmedia Pte Ltd
24 iBird Pro Guide to Birds iBird Pro Guide to Birds
Mitch Waite Group
25 Dictionary.com: English Words Dictionary.com: English Words
Dictionary.com, LLC
26 Daily Bible Verse Inspirations Daily Bible Verse Inspirations
scott hamilton
27 Bible Memory: Scripture Typer Bible Memory: Scripture Typer
Millennial Apps, LLC
28 Dwell: Audio Bible Dwell: Audio Bible
Dwell, LLC
29 Oxford Dictionary of English Oxford Dictionary of English
MobiSystems, Inc.
30 Translate.com Platinum Translate.com Platinum
Emerge Media, Inc.
31 NEC 2014 Edition NEC 2014 Edition
NFPA
32 WolframAlpha WolframAlpha
Wolfram Group LLC
33 upshotTest upshotTest
Diodato Grisi
34 e-Sword LT: Bible Study to Go e-Sword LT: Bible Study to Go
Rick Meyers
35 Take a Name LDS Family History Take a Name LDS Family History
Kinpoint
36 Coptic Reader Coptic Reader
Coptic Orthodox Diocese of the Southern USA
37 BirdsEye Bird Finding Guide BirdsEye Bird Finding Guide
Birds In The Hand, LLC
38 Oxford Advanced Learner’s Dict Oxford Advanced Learner’s Dict
Oxford University Press
39 Merriam-Webster Dictionary Pro Merriam-Webster Dictionary Pro
Merriam-Webster, Inc.
40 Speak & Translate: Translator Speak & Translate: Translator
Apalon Apps
41 People Search by PeopleLooker People Search by PeopleLooker
PeopleLooker LLC
42 The Study Bible The Study Bible
Grace To You
43 Pleco Chinese Dictionary Pleco Chinese Dictionary
Pleco Inc.
44 PANTONE Studio PANTONE Studio
Pantone
45 NIV Bible* NIV Bible*
Just1Word, Inc.
46 Bible Gateway Bible Gateway
HarperCollins Christian Publishing, Inc.
47 Logos Bible Study Tools Logos Bible Study Tools
Faithlife Corporation
48 EMRA Antibiotic Guide EMRA Antibiotic Guide
Emergency Medicine Residents' Association
49 Bible from eBible.com with NIV NKJV KJV ESV NLT Amplified Message Chinese Spanish Bible from eBible.com with NIV NKJV KJV ESV NLT Amplified Message Chinese Spanish
Osprit Inc.
50 The Holy Bible App The Holy Bible App
Texas PFCG Aplicativos Ltda
51 Luminos Luminos
Wobbleworks LLC
52 TraduCam - Translate Photo TraduCam - Translate Photo
Wzp Solutions Lda
53 SkySafari 6 Plus SkySafari 6 Plus
Simulation Curriculum Corp.
54 Scrapbook Photo Collage Frames Scrapbook Photo Collage Frames
Alan Cushway
55 Game Net for - Human: Fall Flat Game Net for - Human: Fall Flat
Andre Marcin
56 iCollect Everything iCollect Everything
iCollect
57 Hot Hashtags for Instagram, Facebook & Twitter Hot Hashtags for Instagram, Facebook & Twitter
Yang Min
58 Merriam-Webster Dictionary Merriam-Webster Dictionary
Merriam-Webster, Inc.
59 Turbo Translator Translate App Turbo Translator Translate App
Vulcan Labs Company Limited
60 NFPA 70®: NEC® 2017 Edition NFPA 70®: NEC® 2017 Edition
NFPA
61 Legal Heat - 50 State Guide to Firearm Law Legal Heat - 50 State Guide to Firearm Law
National Training Solutions, Inc.
62 CCW – Concealed Carry 50 State CCW – Concealed Carry 50 State
Workman Consulting LLC
63 Wheel for Fortnite - Drop In Wheel for Fortnite - Drop In
Adam Feragne
64 California Crime Finder-iPhone California Crime Finder-iPhone
The PlacerGroup
65 Verses - Bible Memory Verses - Bible Memory
Verses, Ltd. Co.
66 Tuggl Tuggl
App Cart
67 NKJV Bible by Olive Tree NKJV Bible by Olive Tree
HarperCollins Christian Publishing, Inc.
68 Fighter Verses: memorize Bible Fighter Verses: memorize Bible
Children Desiring God
69 RhymeZone RhymeZone
Datamuse Corporation
70 Knots 3D Knots 3D
Nynix
71 Buddha Quotes Buddhism Dhamma Buddha Quotes Buddhism Dhamma
Daily Apps
72 SCRABBLE Dictionary SCRABBLE Dictionary
Merriam-Webster, Inc.
73 Encyclopædia Britannica Encyclopædia Britannica
Encyclopaedia Britannica, Inc
74 Reverso translate and learn Reverso translate and learn
Theo Hoffenberg
75 Quotes⋆ Quotes⋆
Dragon Game Studio
76 Life Application Study Bible Life Application Study Bible
Tecarta, Inc.
77 Questia Research Questia Research
Questia Media Inc.
78 US Coin Collector US Coin Collector
SaintSoft LLC
79 LDS Daily Verse LDS Daily Verse
LDS Mobile Apps LLC
80 穿梭-海外华人专业网络优化加速 穿梭-海外华人专业网络优化加速
Transmoon
81 Mood Wallpaper & Savour Mood Wallpaper & Savour
Jessie Edword
82 1-Step Metric Calculator 1-Step Metric Calculator
1-Step Metric
83 NPMA Mobile Field Guide NPMA Mobile Field Guide
National Pest Management Association
84 He Reads Truth He Reads Truth
She Reads Truth
85 Quran Explorer Quran Explorer
Noble Education Foundation, Inc.
86 柯林斯 COBUILD 高级英汉双解词典 柯林斯 COBUILD 高级英汉双解词典
物書堂
87 TransKey - Chat Translator TransKey - Chat Translator
Aleksander Skjoelsvik
88 The ESO App The ESO App
Andrew Carlton
89 Orthodox Study Bible Orthodox Study Bible
VDUB Software, LLC
90 VR Movies - 3D Virtual Reality VR Movies - 3D Virtual Reality
Thien Chu
91 Kabbalistic Calendar Kabbalistic Calendar
The Kabbalah Centre International
92 Maps for Minecraft PE (Minecraft Maps) Maps for Minecraft PE (Minecraft Maps)
NuApps
93 TX Penal Code 2018 - Texas Law TX Penal Code 2018 - Texas Law
PDA Wizard
94 TX Laws, Texas Statutes - 85th TX Laws, Texas Statutes - 85th
Nirmala T V
95 iCorps - Pocket Reference iCorps - Pocket Reference
Sandbox Family Communication, Inc
96 Satellite Tracker by Star Walk Satellite Tracker by Star Walk
Vito Technology Inc.
97 Writing Magazine Writing Magazine
Warners Group Publications PLC
98 Dictionary.com Pro Learn Words Dictionary.com Pro Learn Words
Dictionary.com, LLC
99 SkySafari 6 Pro SkySafari 6 Pro
Simulation Curriculum Corp.
100 California - Pocket Brainbook California - Pocket Brainbook
Jason Weil

The top 100 Reference apps chart is updated daily using actual iTunes data.