String

String is a cloud-based business phone and messaging platform that gives companies a direct line for SMS marketing, one-to-one conversations, mass texting, and calling. It solves the problem of coordinating customer outreach across channels by centralizing contacts, conversations, and campaigns in one workspace, with support for existing landline numbers and new local, toll-free, or vanity numbers.

Core capabilities include contact importing, tagging, and segmentation; mass and group messaging; keyword responders and drip campaigns; message templates; personalization fields; SMS and MMS; WiFi calling; voicemail transcription; call forwarding; missed-call and away auto-replies; and inbox, list, search, and filter views. It connects to apps such as Zapier, Salesforce, Slack, HubSpot, Mailchimp, Square, Shopify, and QuickBooks, and runs on iOS, Android, and the web.

String is aimed at small businesses and organizations across industries including churches, gyms, hospitality, nonprofits, real estate, retail, restaurants, and sports teams. It offers a 30-day free trial with two monthly plans: Essential for two-way texting and calling, and Elite for mass texting, contact tagging, keyword campaigns, and app integrations. Mass messaging uses credits that roll over, while conversational texting is unlimited; there is no contract, and multiple users can share an inbox at no extra charge.