myCRMSIM vs Linq

Compare myCRMSIM and Linq side by side: iMessage features, channels, developer tools, pricing and compliance, checked on each provider's own site.

myCRMSIM

Send iMessage, SMS, WhatsApp and RCS from your own devices
Starting price
$29/month per iMessage line ($24.17/month billed annually)
Free plan
None; 30-day money-back guarantee

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

myCRMSIM supports 29 of the 77 features compared here, and Linq supports 63.

Feature comparison

FeaturemyCRMSIMLinq
iMessage messaging
iMessage
SupportedSent through your own iPhone and a supported Mac running the myCRMSIM app.
Supported
Group chats
SupportedCreate iMessage groups from contacts and follow them in the inbox. No voice notes to groups yet.
SupportedPro plan. Up to 31 recipients. No read or delivery receipts in groups.
Group management
PartialGroups are created in the dashboard. Adding or removing members, and API support, are not documented.
SupportedAdd and remove participants and leave a group, iMessage groups only, 3-member minimum.
Group name and photo
Not listed
SupportedSet display_name and group_chat_icon on group chats.
Mentions
Not listed
SupportedGroup chats only. Notifies iMessage recipients even in a muted chat.
Tapbacks
Not listed
SupportedSix classic tapbacks or any emoji, send and receive via reaction webhooks.
Threaded replies
Not listed
Supportedreply_to with optional part_index. iMessage only.
Typing indicators
Not listed
SupportedSend and receive, in direct and group chats. iMessage only.
Read receipts
Not listed
SupportedMark chats read and receive message.read. One-to-one chats only.
Edit and unsend
Not listed
PartialEdit text up to 5 times within 15 minutes. Delete does not unsend from the recipient's device.
Message effects
Not listed
Supported11 screen and 4 bubble effects.
Animated text effects
Not listed
Supportedtext_decorations animations: big, small, shake, nod, explode, ripple, bloom, jitter.
Stickers
Not listed
SupportedPeel emoji or images onto messages, send stickers, or place them inline in text.
Formatted text
Not listed
SupportedBold, italic, underline and strikethrough ranges, plus animated text. iMessage only.
Attachments
SupportedOne attachment per API message, up to 5 MB.
SupportedUp to 10MB by URL, 100MB with pre-upload.
Live Photos
Not listed
Not listed
Rich link previews
Not listed
Supportedlink parts render as rich previews on iMessage and RCS.
Voice messages
SupportedVoice notes arrive as a native iMessage audio bubble.
SupportedDedicated voice memo endpoint renders the native iMessage voice bubble.
Contact cards
Not listed
SupportedSend .vcf files as media parts.
Polls
Not listed
SupportedCreate, add options, vote and read tallies, with poll webhooks. Not as a chat's first message.
Chat backgrounds
Not listed
SupportedColor, animated or photo backgrounds, in direct and group chats.
Location sharing
Not listed
SupportedRequest, read and stop Find My shares. Live location is a $79/mo add-on on Pro.
iMessage apps
Not listed
SupportedPro plan. Cards from your own Messages extension, or Linq-hosted cards (Experiences).
Live app cards
Not listed
SupportedUpdate App Card replaces a delivered iMessage app or Experience card in place.
Sender name and photo
Not listed
SupportedContact card API sets name and photo, shared per chat via Name and Photo Sharing.
FaceTime calls
PartialFaceTime Audio calls from the contact record. Needs calling enabled on the line and a calling plan.
Not supportedDocs say the API does not place or answer calls.
Delivery status
SupportedStatus lifecycle queued, webhook_sent, accepted, sent, delivered or failed per message.
Supportedsent, delivered, read and failed webhooks. Groups report sent only.
iMessage availability check
Not listed
Supportedcheck_imessage and check_rcs endpoints.
Focus and Notify Anyway
Not listed
Not listed
Numbers and delivery
Managed lines
Not supportedYou supply the iPhone and a Mac, or rent a cloud Mac from partner HostMyApple.
Supported
Dedicated numbers
PartialEach line is your own SIM and Apple ID. myCRMSIM does not supply numbers.
SupportedPaid lines are dedicated. Provisioned by Linq, no self-serve number API.
Shared numbers
Not listed
SupportedFree Hobby tier uses a Shared Line, inbound-first, 20 contacts.
Bring your own number
SupportedUse your own iPhone and keep your existing number.
Not listed
Line pooling
Not listedSeveral iMessage numbers can be assigned to users in one HighLevel sub-account. Automatic balancing not documented.
SupportedManaged load balancing (Pro): send without from and Linq picks and fails over lines.
SMS fallback
SupportedThe iPhone falls back to SMS from the same number when a connected SMS setup is in place.
Supported
RCS fallback
PartialWorkspace routing sets primary and fallback channels, including RCS. Each channel needs its own device and plan.
SupportedOrder is iMessage, then RCS, then SMS.
Outbound-first messaging
SupportedRecommended limit of 50 new contacts per day per Apple ID.
SupportedFree Hobby tier is inbound-first. Docs recommend inbound-first flows to avoid flagging.
Calls on the iMessage number
PartialFaceTime Audio from the line in the dashboard. The calling page says details are pending confirmation.
PartialAPI forwards inbound calls on the line; outbound needs caller-ID masking via another provider.
Other channels
SMS
SupportedFrom your own Android phone and SIM.
Supported
RCS
SupportedFrom a supported Android phone.
Supported
WhatsApp
SupportedFrom your own WhatsApp account and phone.
BetaSeparate WhatsApp API in beta. Access by request, no SLA.
Telegram
Not supportedNot offered
Not supportedNot offered
Slack
Not supported
Not supported
Email
Not supported
Not supportedNot offered. iMessage can be sent to Apple ID email handles.
Phone calls
PartialDashboard calls on SMS lines in the US and Australia only. Other Android calls stay on the device.
PartialAPI does not place or answer calls; it forwards inbound calls. Calling lives in the Linq Blue app.
Apple Messages for Business
Not supportedNot offered
Not listedAI context page mentions it, but no product page or docs were found.
Unified channel API
SupportedOne messages endpoint across SMS, WhatsApp, iMessage and RCS, with workspace routing.
PartialiMessage, RCS and SMS share one API. WhatsApp is a separate API with its own keys and SDKs.
Developer tools
REST API
SupportedREST API with OAuth 2.0 and scoped JWT tokens. Sends are capped at 30 messages per 15 minutes per workspace.
Supported
TypeScript SDK
Not listed
Supported@linqapp/sdk
Python SDK
Not listed
Supportedlinq-python
Other SDKs
Not listed
SupportedOfficial Go SDK.
CLI
Not listed
Supported@linqapp/cli: signup, sending, and a local webhook listener.
Webhooks
SupportedInbound webhook per workspace, plus delivery status lookups.
Supported
Signed webhooks
PartialCustom headers such as a shared secret are sent with each delivery. No HMAC signing documented.
SupportedHMAC-SHA256, Standard Webhooks format, with replay protection.
MCP server
Not listedThe features page describes an MCP server, but the API page FAQ says MCP is a planned capability.
Supported@linqapp/sdk-mcp with docs search and code execution tools.
Open source
Not listed
PartialSDKs, CLI and adapters are Apache-2.0 or MIT on GitHub. The messaging platform is closed.
Self-hosting
Not listedYou run the iPhone and Mac; the platform itself is hosted on AWS.
Not supportedLinq describes itself as fully managed, in contrast to self-hosted options.
Local testing
Not listed
Not listedThe CLI streams webhooks locally, but tests still use a real phone.
Custom channel providers
Not listed
Not listed
Event replay
Not listed
PartialRetries for 30 minutes; after that, re-fetch chats or ask Linq for a manual replay.
OpenTelemetry
Not listed
PartialW3C trace IDs on every response and webhook for OTel backends. No export of Linq spans by default.
No-code integrations
SupportedHighLevel, Make and Zapier.
SupportedLinq Blue works as a GoHighLevel messaging provider. No n8n, Make or Zapier found for the API.
CRM integrations
SupportedHubSpot, Salesforce and Zoho.
SupportedVia Linq Blue: GoHighLevel, HubSpot and Salesforce.
Built for AI agents
Agent framework
PartialSimi AI prepares campaigns, messages and follow-ups for a person to review. Not an autonomous agent.
PartialNo own framework. Maintains a Vercel Chat SDK adapter and OpenClaw and Hermes plugins.
Agent framework integrations
Not listed
SupportedLinq-maintained Vercel Chat SDK adapter, plus OpenClaw and Hermes Agent plugins.
Streaming replies
Not listed
Not supportedDocs say the Chat SDK adapter buffers streams into one final message.
Agent group chats
Not listed
Not listed
Human handoff
SupportedSimi plans need a person to review and launch them, and teammates can pick up conversations.
Not listed
Audit logs
Not listed
SupportedDashboard Activity page plus account-change webhooks with actor and origin.
Message history API
SupportedList inbound and outbound messages across all four channels with filters.
Supported
Plans and compliance
Free plan
Not supportedSupport article says there are no free trials. A 30-day money-back guarantee is offered.
SupportedHobby: $0, up to 20 contacts, through the CLI.
Public pricing
SupportediMessage is $29/month per line for 1 to 10 lines, $19 for 11 or more.
SupportedPro from $260/mo. Enterprise is custom.
No per-message fees
SupportedFixed monthly cost with no per-message billing.
Supported
Uptime SLA
Not listed
SupportedContractual SLAs on the Enterprise plan; marketing cites 99.95%
Isolated infrastructure
SupportedMessages go out through a device you connect, not a shared gateway.
SupportedDedicated lines across 4 data centers on paid plans; Hobby uses a shared line
SOC 2 Type II
Not listed
SupportedType I and Type II, reports for 2022, 2024, 2025 and 2026.
GDPR
Not listed
SupportedDPA covers GDPR and UK GDPR, with Standard Contractual Clauses.

Checked on each provider's own site and docs on 2026-10-25. “Not listed” means the provider does not mention it.

Pricing

myCRMSIM

iMessage lines cost $29 a month each for 1 to 10 lines and $19 a month each for 11 or more, or $290 per line per year, with no per-message fees; you supply the iPhone and Mac.

Pricing model: flat per line, bring your own devices

Source

Linq

Hobby is free with up to 20 contacts through the CLI, Pro starts at $260 a month with a 7-day free trial, and Enterprise is custom.

Pricing model: flat monthly, no per-message fees

Source

Which should you choose?

Choose myCRMSIM if you need FaceTime calls, bring your own number and human handoff.

Choose Linq if you need group name and photo, mentions, tapbacks and threaded replies.

Frequently asked questions