Search for really free Android Books and reference apps with no IAP and no ADS

Title Score Score (w/installs) Installs Category Released
YouVersion Bible App + Audio
4.9
18.0
100,000,000+
31 Dec 1969
Google Play Books & Audiobooks
4.1
16.8
1,000,000,000+
04 Dec 2010
Wikipedia
4.5
16.1
50,000,000+
11 Jan 2012
JW Library
4.9
15.7
10,000,000+
01 Jul 2013
Sky Map
4.1
14.7
50,000,000+
31 Dec 1969
Gospel Library
4.7
14.5
5,000,000+
26 May 2010
English Dictionary - Offline
4.4
14.2
10,000,000+
19 Mar 2012
Bible - Audio & Video Bibles
4.6
14.1
5,000,000+
23 Aug 2010
Audiobooks.com: Books & More
4.6
14.0
5,000,000+
20 Aug 2012
Dictionary - WordWeb
4.5
13.9
5,000,000+
20 Jan 2012
Libby, by OverDrive
4.5
13.8
5,000,000+
15 Jan 2017
네이버 - NAVER
3.7
13.8
100,000,000+
23 Feb 2010
Libro Total Libros AudioLibros
4.9
13.6
1,000,000+
21 Nov 2017
Dua & Azkar
4.9
13.6
1,000,000+
30 Aug 2010
Barnes & Noble NOOK
4.2
13.5
10,000,000+
20 Jul 2010
Merlin Bird ID by Cornell Lab
4.9
13.4
1,000,000+
24 Jun 2014
Al Quran (Tafsir & by Word)
4.8
13.4
1,000,000+
24 Aug 2016
iGranth Gurbani Search
4.8
13.2
1,000,000+
02 Dec 2014
Liturgia Diária - Canção Nova
4.8
13.2
1,000,000+
03 Sep 2014
FamilySearch Tree
4.7
13.1
1,000,000+
13 Jul 2014