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

	Title	Score	Score (w/installs)	Installs	Category	Released
	MechTab	4.4	12.0	1,000,000+	Books & Reference	07 Nov 2022
	Christian Hymn Book	4.4	11.4	500,000+	Books & Reference	09 Nov 2022
	AskRail	4.4	8.0	10,000+	Books & Reference	07 Nov 2022
	Bible Hub	4.4	11.4	500,000+	Books & Reference	18 Nov 2020
	Biblia de Estudio Adventista	4.3	9.4	50,000+	Books & Reference	05 Nov 2022
	Hebrew Interlinear Old Testame	4.3	8.0	10,000+	Books & Reference	06 Nov 2022
	Audubon Bird Guide	4.3	11.4	500,000+	Books & Reference	28 Jun 2010
	ThriftBooks: New & Used Books	4.3	12.0	1,000,000+	Books & Reference	25 Feb 2017
	Deep Sea ID	4.3	7.4	5,000+	Books & Reference	26 Aug 2015
	Wird Book - كتاب الأوراد	4.3	8.0	10,000+	Books & Reference	06 Dec 2018
	Insight Devotional	4.3	8.0	10,000+	Books & Reference	07 Nov 2022
	DBRL Mobile	4.3	7.4	5,000+	Books & Reference	09 Nov 2022
	InfoSoup Libraries	4.3	6.0	1,000+	Books & Reference	04 Mar 2023
	U.S. Air Force Airman's Manual	4.3	5.4	500+	Books & Reference	02 Nov 2022
	Pashto Bible/ Injil پښتو انجیل	4.3	8.0	10,000+	Books & Reference	12 Nov 2022
	The Bible in Xitsonga	4.3	9.4	50,000+	Books & Reference	12 Nov 2022
	Mission Bible	4.3	9.4	50,000+	Books & Reference	01 Nov 2022
	SCHUBERT-Audio+Video	4.3	9.4	50,000+	Books & Reference	31 Oct 2022
	Siddur & Tehilim סידור ותהילים	4.3	10.0	100,000+	Books & Reference	06 Nov 2022
	BiblioTech Public Library	4.3	6.0	1,000+	Books & Reference	09 Nov 2022