NumVerify offers a full-featured yet simple RESTful JSON API for international phone number validation & information lookup for 232 countries around the world. Requested numbers are processed in real-time, cross-checked with international databases.
Castle blocks neighbor spoofing robocalls instantly, simply enter the first 6 digits of the phone number and it's done, no need to access your contacts.
At best, these calls annoy. At worst, they defraud to the tune of $20 billion a year just in the us. We're here to use an algorithmic approach to combat this epidemic.
Callwarden lets you create a new phone number to give to strangers and keep your personal number private. Stop giving out your personal number. Instead, use a callwarden number and respond to voicemails at your leisure.
Kyte is a smart SMS app that blocks spam and automatically organizes your inbox. It is intended for the Indian market where SMS is the primary mode of communication for finance and commerce transactions and 60% of messages are spam. SMS alerts usage in India has exploded over the last three years and spam is an unsolved problem.