KEY MESSAGES app is an alternative that says it blocks ALL unknown SMS with a ONE TIME PAYMENT and without all the BS of joining up and giving away your contacts! I havent been able to pay for premium yet cos my bank is 'doing maintenance', but I will DELETE THIS if it fails to work.|||||||||||||||||||||||||||.Truecaller IS the spammy TIME-WASTER itself! They want all that private info, yet: 1) No way to block all SMS not in phonebook, that I can see 2) There are FOUR STEPS to block a number, unlike the inbuilt messaging app 3) I dont want to SEE the blocked sms in the list. No obvious way to prevent seeing them! 4) Proper blocking costs, even though people are HELPING TC by giving them the info about spam. So we give TC the info, they charge others for it. SERIOUSLY? Someone can surely make a better OPEN SOURCE app than this with a COMMUNITY. Truecaller IS the spammy timewaster! Truly, get f**d