AI Agents via SMS: Overview, Uses, and Costs

Accessible assistants that can be contacted via simple messages are capable of connecting to your services, remembering context, and performing concrete tasks, from booking to delayed reminders. The offerings are expanding between generalists and specialists for family or travel, driven by ambitious funding rounds and public betas, while security concerns begin to shape the landscape.

Increased Autonomy, Dedicated Emails, and Initial Security Guarantees

Some agents are gaining autonomy and acting on behalf of the user, beyond simply responding to a request. Instinct has started assigning dedicated email addresses to its users to manage accounts without cluttering their personal inboxes. This level of autonomy has raised concerns regarding privacy and security. At the same time, safeguards are emerging: Ollie is among the first family assistants to achieve SOC 2 compliance, and Apple has validated Poke as the first AI agent on Apple Messages for Business.

Family, Travel, and Creation: Specialized Agents

Several services target domestic use cases. Fambot centralizes school communications, sports activities, meals, calendars, and other family tasks, operates via app and SMS, and sends a nightly summary of the next day’s events and to-dos; it is connected to Gmail and Google Calendar, with plans to add Outlook and Apple Calendar. The service is free during the beta period. Others are positioned around similar needs: Ohai helps process the daily flow of information through messages, email transfers, and voice requests; Ollie aggregates school messages, calendars, lists, and group discussions, and tracks calendars, emails, and reminders; Orbits gathers calendars, lists, and conversations and can execute tasks via app and text. Travel has its dedicated agent with Miso, which operates within iMessage and combines AI planning with support from a travel team. For creators, Stanley specifically targets content production, unlike general-purpose assistants.

Messaging and Voice as Interfaces for Generalist Assistants

Several assistants are multiplying access channels by leveraging existing messaging platforms. Caddy operates directly in iMessage and RCS, without an app or dedicated inbox, to transform scattered information into actions such as events, reminders, follow-ups, and searches, with a public beta open since April 2026. Folk connects via iMessage, WhatsApp, and Telegram, remembers personal context, manages reminders and emails, tracks flights, and makes restaurant reservations; it operates on a private cloud, executes complex tasks, is available for free, with a beta launched in May 2026 and a Pro option at $8.33 per month for unlimited background tasks. Instinct accepts exchanges via text or voice and can be connected to the user's applications and services. Iris, which relies on Hermes, allows the user to delegate tasks to iMessage after linking their applications. Martin can be contacted via SMS, phone, WhatsApp, email, Slack, as well as through an iOS app, and supports the management of calendars, emails, reminders, tasks, notes, and communications, with subscription plans starting at $21 per month. Pally offers a friendly exchange experience while allowing access to the user's applications. Launched in March 2026, Poke is used via text messages. Rene presents itself as the user's best contact and transforms a natural conversation into tasks, reminders, and summaries. Skye, in the form of an agentic home screen for iPhone, analyzes connected services and highlights information deemed relevant.

Funding, Pricing, and Availability Status

The segment is attracting significant capital: in September 2026, Instinct raised $1 billion, bringing its valuation to $10 billion. On the side of family startups, Fambot raised $3.5 million in pre-seed funding. Several services are in beta phase: Caddy has had a public beta since April 2026; Folk started its beta in May 2026 and remains accessible for free, with a Pro tier at $8.33 per month, while Martin charges starting at $21 per month. Poke was launched in March 2026. Some integrations are still forthcoming, such as the planned support for Outlook and Apple Calendar at Fambot.