Karix is the enterprise messaging business of Tanla Platforms, one of India's largest A2P messaging companies. It says it has powered India's business messaging for over 25 years and handles 8 billion interactions a month for banks, apps, government services and brands. It lists ISO 27001 on its about page.
Prices are not published. Karix asks enterprises to speak with its sales team.
Karix has no iMessage. Both offer SMS and RCS with SMS fallback. Karix adds WhatsApp, Truecaller, voice campaigns and email for the Indian market, while Linq's WhatsApp API is in beta. Linq publishes a flat monthly price from $260 with no per-message fees.
Large enterprises in India that need high-volume OTPs, alerts and RCS or WhatsApp campaigns with DLT compliance.