VoidFix Gateway vs Linq

VoidFix Gateway supports 24 of the 77 features compared here, and Linq supports 63.

Feature comparison

Feature	VoidFix Gateway	Linq
iMessage messaging
iMessage	SupportedFrom a real iPhone line, triggered from GoHighLevel, Zapier or the API.	Supported
Group chats	Not listed	SupportedPro plan. Up to 31 recipients. No read or delivery receipts in groups.
Group management	Not listed	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	PartialImages, video and GIFs are listed for iMessage lines. The iMessage API send call takes text only.	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	PartialVoice notes are listed for iMessage lines. The iMessage API send call takes text only.	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	PartialContact Card branding shares your business name with recipients. How it is set is not documented.	SupportedContact card API sets name and photo, shared per chat via Name and Photo Sharing.
FaceTime calls	Not listed	Not supportedDocs say the API does not place or answer calls.
Delivery status	SupportedRead iMessages by GUID or by status; GoHighLevel shows delivery tracking.	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	SupportedFully Managed plan: VoidFix buys and runs the iPhone, SIM and Apple account. No Mac needed.	Supported
Dedicated numbers	SupportedEach line is one iPhone with its own number.	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	SupportedBring Your Own iPhone plan connects your iPhone and SIM for $99/month per line.	Not listed
Line pooling	PartialNumber Pool and device rotation are documented for SMS. iMessage sends name one deviceID.	SupportedManaged load balancing (Pro): send without from and Linq picks and fails over lines.
SMS fallback	Not supportedFAQ says iMessage lines do not reach Android; use the separate SMS product.	Supported
RCS fallback	Not supportedRCS not offered	SupportedOrder is iMessage, then RCS, then SMS.
Outbound-first messaging	SupportedUp to 50 new contacts per line per day, with Number Warmup on new lines.	SupportedFree Hobby tier is inbound-first. Docs recommend inbound-first flows to avoid flagging.
Calls on the iMessage number	Not listed	PartialAPI forwards inbound calls on the line; outbound needs caller-ID masking via another provider.
Other channels
SMS	SupportedSMS and MMS from your own Android phones and SIMs through the VoidFix Gateway app.	Supported
RCS	Not supportedNot offered	Supported
WhatsApp	SupportedLinks a normal WhatsApp or WhatsApp Business number by QR code, not the Business API.	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	Not supported	PartialAPI does not place or answer calls; it forwards inbound calls. Calling lives in the Linq Blue app.
Apple Messages for Business	Not supported	Not listedAI context page mentions it, but no product page or docs were found.
Unified channel API	Not supportedSMS, WhatsApp and iMessage are separate subscriptions and portals with their own endpoints.	PartialiMessage, RCS and SMS share one API. WhatsApp is a separate API with its own keys and SDKs.
Developer tools
REST API	SupportedFour iMessage endpoints: send, get by GUID, get by status and resend. OpenAPI 3.0 spec.	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	Not listediMessage webhooks are not documented. The developer hub points to the SMS API reference.	Supported
Signed webhooks	Not listed	SupportedHMAC-SHA256, Standard Webhooks format, with replay protection.
MCP server	Not listed	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 listedHosted platform. Self-hosting is not mentioned.	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	SupportedGoHighLevel, Zapier and n8n for iMessage; Make, Pabbly and Bubble.io for SMS.	SupportedLinq Blue works as a GoHighLevel messaging provider. No n8n, Make or Zapier found for the API.
CRM integrations	SupportedHubSpot and Zoho CRM for iMessage.	SupportedVia Linq Blue: GoHighLevel, HubSpot and Salesforce.
Built for AI agents
Agent framework	PartialHosted AI chatbot and auto replies are documented for SMS and WhatsApp, not iMessage.	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	PartialThe SMS and WhatsApp AI chatbot routes complex questions to a person.	Not listed
Audit logs	Not listed	SupportedDashboard Activity page plus account-change webhooks with actor and origin.
Message history API	SupportedGet iMessages by GUID, or by status within a date range.	Supported
Plans and compliance
Free plan	Partial7-day free trials for SMS and WhatsApp only. iMessage has no trial.	SupportedHobby: $0, up to 20 contacts, through the CLI.
Public pricing	Supported$99/month per line with your own iPhone, or $149/month plus $149 setup fully managed.	SupportedPro from $260/mo. Enterprise is custom.
No per-message fees	Supported	Supported
Uptime SLA	Partialllms-full.txt lists a 99.95% uptime SLA. The terms do not set one.	SupportedContractual SLAs on the Enterprise plan; marketing cites 99.95%
Isolated infrastructure	SupportedEach line is its own iPhone with its own SIM and Apple account.	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	PartialPrivacy policy sets out legal bases under GDPR and UK GDPR. No DPA found.	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

Which should you choose?

Choose VoidFix Gateway if you need bring your own number and human handoff.

Choose Linq if you need group chats, group management, group name and photo and mentions.

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