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+
01 Jan 1970
Sky Map
4.2
14.7
50,000,000+
01 Jan 1970
Wikipedia
4.5
16.1
50,000,000+
12 Jan 2012
Dictionary - WordWeb
4.5
13.9
5,000,000+
21 Jan 2012
Libby, by OverDrive
4.6
14.3
5,000,000+
16 Jan 2017
FamilySearch Tree
4.7
13.0
1,000,000+
14 Jul 2014
Inkitt: Books, Novels, Stories
4.5
12.4
1,000,000+
06 Jan 2017
Dictionary Linguee
4.8
13.2
1,000,000+
12 Apr 2016
hoopla Digital
4.7
13.0
1,000,000+
24 May 2013
FanFiction.Net
4.1
11.2
1,000,000+
17 May 2015
Diccionario RAE y ASALE (DLE)
4.5
12.5
1,000,000+
29 Nov 2015
Portuguese Dictionary Offline
4.1
11.4
1,000,000+
01 Aug 2016
DeepL Translate
4.8
13.2
1,000,000+
29 Jan 2022
Offline Survival Manual
4.7
12.9
1,000,000+
15 Sep 2016
Google I/O 2019
4.3
12.0
1,000,000+
10 Jun 2014
cloudLibrary
4.5
11.9
500,000+
03 Oct 2011
FamilySearch Memories
4.7
12.3
500,000+
10 Feb 2015
myBricks
4.6
10.7
100,000+
26 Apr 2012
Rebin Dictionary Plus - Kurdish
4.2
9.7
100,000+
15 May 2018
Free Gurukul
4.7
10.8
100,000+
13 Aug 2017