Search for really free Android Communication apps with no IAP and no ADS

	Title	Score	Score (w/installs)	Installs	Category	Released
	OpenScape Mobile Pro	1.8	3.3	10,000+	Communication	25 Feb 2019
	OpenOcean Studio	0	0.0	100+	Communication	05 Nov 2022
	OpenKeychain: Easy PGP	4.1	10.7	500,000+	Communication	14 Jan 2013
	OpenDoor Keystep Solutions	0	0.0	100+	Communication	01 Nov 2022
	OpenDiag Mobile	3.8	10.5	1,000,000+	Communication	24 Jun 2014
	Open TV Browser	3.6	9.5	500,000+	Communication	18 Nov 2022
	Open Talk | Buddy Talk	4.3	11.8	1,000,000+	Communication	16 Aug 2021
	Open FTP Client	2.6	4.7	10,000+	Communication	12 Nov 2022
	Ooredoo SuperApp: Do it all!	2.1	5.5	500,000+	Communication	06 Nov 2022
	Ooredoo Qatar	3.8	10.4	1,000,000+	Communication	02 Nov 2022
	Ooredoo - حسابي	2.9	8.0	1,000,000+	Communication	02 Nov 2022
	Ooma Meetings	0	0.0	1,000+	Communication	07 Nov 2022
	Ooma Home Phone	4.6	10.5	100,000+	Communication	12 Nov 2022
	Ooma Enterprise	3.9	5.4	1,000+	Communication	11 Nov 2022
	OnTrack Go	0	0.0	10,000+	Communication	25 Dec 2016
	OnSolve MIR3	1.6	3.4	50,000+	Communication	07 Nov 2022
	OnSolve	2.8	5.2	10,000+	Communication	05 Nov 2022
	Onsignage	0	0.0	1,000+	Communication	09 Nov 2022
	OnSend	0	0.0	100+	Communication	23 Apr 2023
	Online Telecom Móvel	0	0.0	1,000+	Communication	02 Jul 2022