Linq Alternatives with Threaded replies

Providers with threaded replies

Photon

Open-source agent framework with managed iMessage

Starting price

$25/month (Pro)

Free plan

Free: shared iMessage lines, up to 10 users (2.0 beta: 25 shared iMessage assignments and $100 credit)

Supported

Visit PhotonRead more

Linq

iMessage, RCS and SMS API with flat monthly pricing

Starting price

$260/month (Pro)

Free plan

Hobby: $0, up to 20 contacts, used through the CLI

Supportedreply_to with optional part_index. iMessage only.

Visit LinqRead more

Blooio

One API for iMessage, WhatsApp and Apple Messages

Starting price

$39/month (Starter, shared number)

Free plan

Free trial: 20 messages total on a shared number, no credit card

Supportedreply_to on sends.

Visit BlooioRead more

Sendblue

iMessage API and CRM texting for sales and agents

Starting price

$100/month per line

Free plan

Free sandbox: shared number, up to 10 verified contacts, no webhooks

Supportedreply_to on V2 iMessage lines, in direct and group chats.

Visit SendblueRead more

LoopMessage

iMessage, SMS, RCS and WhatsApp on one number

Starting price

$59.99/month per sender (Light)

Free plan

Sandbox: $0, 5 contacts, testing only; free shared plan for schools and non-profits

Supportedreply_to_id on send; inbound webhooks carry a thread object.

Visit LoopMessageRead more

BlueBubbles

Free, open-source iMessage bridge you host on a Mac

Starting price

Free

Free plan

Free and open source (Apache-2.0)

SupportedReply by message GUID and part; Private API (SIP disabled), macOS 11+

Visit BlueBubblesRead more

Claw Messenger

iMessage for personal AI agents, no Mac needed

Starting price

$5/month for 250 messages

Free plan

7-day free trial, card required

SupportedreplyTo on send; inbound messages carry replyTo

Visit Claw MessengerRead more

messages.dev

TypeScript-first iMessage, RCS and SMS API

Starting price

$99/month per line

Free plan

Sandbox: 50 messages a day to your own paired phone

Supportedreply_to with a message ID or GUID.

Visit messages.devRead more

Not supported or not listed

• Chert
  Not listedHomepage mentions reply context; no reply-to field in the API docs.
• MessageBlue
  Not listed
• Texting Blue
  Not listed
• Apple Messages for Business
  Not listed
• Twilio
  Not supportedNo iMessage support
• Sinch
  Not supportedNo iMessage support
• Telnyx
  Not supportedNo iMessage support
• Vonage
  Not supportedNo iMessage support
• Bird
  Not supportedNo iMessage support
• Infobip
  Not supportedNo iMessage support

Other imessage messaging features