VoiceMaker - Voicemaker is a web application with which you can convert your texts into audio by simply importing the text onto the dedicated text box.
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Notevibes - Online Text to Speech Converter with 57 natural voices. Download your files as mp3 and Wav. For business and personal usage.
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
Free TTS - Free TTS is a web application that can convert any text into audio.
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.