If you already know ATS Mobile Softphone, this is the deeper bench. 194+ ats mobile softphone apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.
This VoIP softphone app allows users to make and receive calls, send SMS messages, and access voicemails from anywhere. It offers features like call transfers, app-to-app calls, and visual voicemail for enhanced communication.
This mobile SIP client integrates with cloud VoIP solutions, offering advanced call management and high-quality communication. It supports various codecs, multiple accounts, and secure calling features, with some premium functionalities available through in-app purchases.
Communicate with contacts through unlimited texts, photos, videos, and documents. Supports iMessage for Apple devices and RCS, SMS, and MMS for others. Features include message editing, unsending, and scheduling.