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

Title Score Score (w/installs) Installs Category Released
Our Solar System
4.8
8.8
10,000+
08 Nov 2022
Our Daily Bread
4.5
13.9
5,000,000+
30 Aug 2011
Ouachita Parish Public Library
4
5.5
1,000+
13 Mar 2018
OTTER SPOTTER App
0
0.0
500+
30 Aug 2020
Otomi, Tenango Bible
0
0.0
10,000+
07 Nov 2022
Otomí Tenango Bible
0
0.0
100+
07 Nov 2022
Otomí Querétaro Bible
0
0.0
100+
07 Nov 2022
Otomi Mezquital Bible
0
0.0
500+
07 Nov 2022
Otomí Estado de México Bible
0
0.0
100+
07 Nov 2022
Ọtakada Ọla Ọjọ Plus
0
0.0
5,000+
27 Jun 2021
Ọtakada Ọla Ọjọ
0
0.0
10,000+
02 May 2021
Oska Birim Fiyat
0
0.0
1,000+
05 Nov 2022
Orthodox Synaxarion
4.9
8.4
5,000+
31 Oct 2022
Orthodox Prayers Book
4.9
9.0
10,000+
31 Oct 2022
Orthodox Prayer Book
5
8.5
5,000+
31 Oct 2022
Orthodox Mezmurs ኦርቶዶክሳዊ መዝሙራት
4.7
10.8
100,000+
31 Oct 2022
Orthodox Daily Prayer
0
0.0
500+
31 Oct 2022
Orthodox Christian Prayers
0
0.0
1,000+
31 Oct 2022
Orthodox Christian Library 中文
4.9
6.7
1,000+
31 Oct 2022
Oromo, Eastern Bible
4.9
10.6
50,000+
08 Nov 2022