Two-way texting and shared SMS inbox

Two-way texting software with a shared SMS inbox: every reply threaded to the contact.

When a voter asks where to vote, a customer asks about store hours, or a donor replies to a thank-you message, the reply arrives in one shared SMS inbox, attached to that contact, with the full conversation history and every tag visible alongside it. Two-way texting is a $12.49/month add-on and is included on the Enterprise plan.

Two people side by side, one replying to a text message: the two-way SMS conversation that turns a broadcast into a real customer relationship

01 | Unified SMS inbox

Unified SMS inbox: one threaded conversation per contact across every campaign.

If a voter replied to three different GOTV (get-out-the-vote) messages, all three replies appear in one conversation, with timestamps, the campaign each message came from, and any tags attached. You do not have to search several inboxes or piece the context back together.

  • One thread per contact across every campaign
  • Full message history, inbound and outbound
  • Read / unread filtering and search
  • Reply from a computer or a phone, in the same inbox
Two-way SMS inbox showing a threaded conversation with inbound messages, outbound replies, and per-message delivery status

02: Contact context

Contact profile and history visible next to every SMS thread.

The contact profile sits beside the thread, so tags, groups, custom fields, DNC (Do Not Call) status, opt-in source (where the person signed up), and notes stay visible while you type the reply. The person replying does not have to guess, and a teammate who takes over a conversation starts with the full context.

  • Contact profile alongside every thread
  • Tags, groups, and custom fields visible
  • Consent status and opt-in source attached to the contact
  • Internal notes to share context with teammates
Two-way SMS contact profile panel with tags, groups, and conversation history

03: Automatic opt-out handling

STOP, HELP, and UNSUBSCRIBE handled automatically across the account.

When someone replies STOP, UNSUBSCRIBE or another opt-out word (with or without the two-way add-on), the platform honors it immediately. The contact is removed from every future send, a confirmation goes out, and the audit trail records it. A HELP reply gets an automatic message with your business name, how to reach you and how to stop. You never keep an opt-out list by hand.

  • STOP / HELP / UNSUBSCRIBE honored platform-wide
  • Automatic confirmation reply on opt-out
  • Contact removed from every future campaign
  • Logged with timestamp for audit trail
Hand holding a smartphone mid-conversation, a customer replying to a two-way SMS marketing message

Two-way texting use cases

Two-way texting use cases for political operations and customer-facing businesses.

A broadcast goes from you to many people at once, while a two-way SMS conversation is between you and one person. Two-way texting is the right tool whenever the customer's reply matters as much as the message you sent.

Political operations

Two-way texting for one-to-one voter conversations and donor stewardship.

When a voter asks a question, a canvasser asks for a shift swap, or a donor wants a receipt, a live conversation works better than a second broadcast.

  • VOTERSQuestions about polling locations, ID rules, ballot drop-off
  • VOLUNTEERSShift swaps, confirmations, day-of coordination
  • DONORSThank-you replies, receipts, matching-gift clarifications
  • RAPIDRapid-response threads when a news cycle breaks
Business marketing

Two-way texting for customer service, appointment scheduling, and lead follow-up.

Customers get an answer faster than by email and without waiting on hold. Two-way texting handles the questions that come in after a broadcast.

  • SUPPORTOrder status, hours, store location questions
  • APPOINTMENTSReply C to confirm, R to reschedule
  • LEADSInbound inquiries from a flash sale or product launch
  • FEEDBACKQuick-poll replies after a service or purchase

TCPA compliance, built in

Two-way texting compliance: opt-outs and audit trail managed automatically.

/01

STOP handled platform-wide

We honor inbound STOP, HELP, and UNSUBSCRIBE immediately, whether or not the add-on is enabled.

/02

Automatic confirmation

The platform sends the opt-out confirmation reply automatically, so there's no manual step to forget.

/03

Audit trail

We log every inbound message, outbound message, opt-in, and opt-out with a timestamp and its source.

/04

Quiet hours

Replies you send still follow quiet hours based on each contact's time zone, so replying from the inbox cannot get around them.

Two-way texting FAQ

Two-way texting FAQ: pricing, seats, and what's included.

How is two-way priced?

Two-way is a $12.49/mo add-on on Pay-as-you-go, Basic, and Pro, and it's included on Enterprise at no extra cost.

Do I need two-way enabled for STOP to work?

You don't need it. We handle STOP, HELP, and UNSUBSCRIBE platform-wide, even without the two-way add-on. The add-on gives you the inbox and the ability to reply to regular messages.

Can a team share the inbox?

Yes, and the number of included seats depends on your plan: 1 on Pay-as-you-go and Basic, 2 on Pro, and 5 on Enterprise. Additional seats are $25/user, and everyone on the account sees the same threads.

Do incoming messages cost extra?

Messages you send count against your plan (or bill per segment on Pay-as-you-go). Messages you receive don't use up your included SMS. The add-on fee covers the cost of running the inbox.

What happens if I reply during quiet hours?

If someone texts you at 11 p.m., the reply you write still follows the recipient's local quiet-hours window. It waits in a queue and is delivered when sending is allowed.

What is two-way SMS?

Two-way SMS means the same phone number that sends your campaigns also receives replies, and those replies are routed into a threaded inbox tied to the contact who sent them. The alternative is one-way (broadcast-only) SMS, where incoming texts are discarded or sent to an address nobody reads. Two-way is what lets a customer ask "what time do you close?" and reach a person instead of getting no answer.

How is two-way texting different from group texting?

Group texting (iMessage-style "everyone replies to everyone") is built for small social groups. It does not work for large lists, has no way to record consent, and is not safe for marketing under the TCPA (the federal Telephone Consumer Protection Act). Business two-way SMS sends one message to many people (each recipient gets a private thread), and each reply comes back one-to-one (it arrives only in your inbox, not in a group). Each conversation stays private between you and that one contact.

Can multiple teammates share a two-way SMS inbox?

Yes, the inbox is account-wide: every seat on your account sees the same threads, the same contact history, and the same tags. Pro includes 2 seats, Enterprise includes 5, and extra seats are $25/user. Assignment, read and unread status, and notes on each thread are handled in the platform, so several people can answer different threads at the same time without getting in each other's way.

Can I forward two-way replies to email or Slack?

The inbox is the main place to read replies, but notifications of new replies can go to one designated email address per account. Webhook export (sending replies automatically to another system) is on the roadmap. Most teams just leave the inbox open on a second monitor or check it the way they check email.

Related reading

Start sending

Start your two-way texting program today.

Start with a toll-free number. Open an account and add the two-way SMS inbox add-on. Once the phone carriers verify your number, usually in about three business days, replies arrive in a threaded inbox. For teams that receive a steady volume of replies, 10DLC carrier registration (for a registered local number) is the recommended long-term path. We submit it at the same time, and you can send from your toll-free number while the carriers review it.

Fastest start
Toll-free, about 3 business days
Onboarding
Real person, not a chatbot
Free trial
100 free SMS, number $5 a month