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

	Title	Score	Score (w/installs)	Installs	Category	Released
	Skinny Mobile	4.4	11.5	500,000+	Communication	13 Oct 2014
	skEYEwatch Push To Talk (PTT)	5	6.9	1,000+	Communication	01 Nov 2018
	SKC SmartWave	0	0.0	1,000+	Communication	05 Nov 2022
	SIU Alumni	5	6.9	1,000+	Communication	24 Jan 2021
	SIT Alumni	0	0.0	1,000+	Communication	15 Aug 2021
	Sirajul Huda Official	0	0.0	10,000+	Communication	18 Feb 2021
	Sipdroid	3	8.4	1,000,000+	Communication	03 Nov 2022
	sipcall	0	0.0	10,000+	Communication	31 Oct 2022
	sip:phone	0	0.0	5,000+	Communication	31 Oct 2022
	Sioux Valley Dakota Nation	0	0.0	100+	Communication	15 Aug 2022
	Sinirji Responder	4.3	6.0	1,000+	Communication	10 Nov 2022
	SINGHA MYCLUB	0	0.0	10,000+	Communication	09 Nov 2022
	Síndico Noir	0	0.0	10+	Communication	10 Feb 2023
	Simulatore Concorsi	0	0.0	50,000+	Communication	25 Apr 2018
	Simpplr	3.9	7.2	10,000+	Communication	05 Mar 2018
	Simplifi Scout	4.2	3.9	100+	Communication	20 Jan 2021
	SimpleX Chat	4.3	9.9	100,000+	Communication	28 Feb 2022
	Simple Solutions	1.3	3.1	100,000+	Communication	24 Sep 2015
	Simple Obfuscation	4.6	10.7	100,000+	Communication	07 Feb 2017
	Simple Mobile International	3.8	8.8	100,000+	Communication	11 Nov 2022