rustpush vs Linq

rustpush supports 39 of the 77 features compared here, and Linq supports 63.

Feature comparison

Feature	rustpush	Linq
iMessage messaging
iMessage	SupportedRegisters as an Apple device and talks to Apple's servers directly; read from source, no docs	Supported
Group chats	SupportedConversations carry a participant list and optional group name	SupportedPro plan. Up to 31 recipients. No read or delivery receipts in groups.
Group management	SupportedChangeParticipants messages add or remove members	SupportedAdd and remove participants and leave a group, iMessage groups only, 3-member minimum.
Group name and photo	SupportedRename and IconChange messages set a group's name and photo	SupportedSet display_name and group_chat_icon on group chats.
Mentions	SupportedMention message parts	SupportedGroup chats only. Notifies iMessage recipients even in a muted chat.
Tapbacks	SupportedSix classic tapbacks plus emoji; sticker tapbacks are receive only	SupportedSix classic tapbacks or any emoji, send and receive via reaction webhooks.
Threaded replies	Supportedreply_guid and reply_part on messages	Supportedreply_to with optional part_index. iMessage only.
Typing indicators	SupportedTyping message type	SupportedSend and receive, in direct and group chats. iMessage only.
Read receipts	SupportedRead and Delivered message types	SupportedMark chats read and receive message.read. One-to-one chats only.
Edit and unsend	SupportedEdit and Unsend message types	PartialEdit text up to 5 times within 15 minutes. Delete does not unsend from the recipient's device.
Message effects	Supportedeffect field on messages	Supported11 screen and 4 bubble effects.
Animated text effects	SupportedBig, small, shake, nod, explode, ripple, bloom and jitter	Supportedtext_decorations animations: big, small, shake, nod, explode, ripple, bloom, jitter.
Stickers	PartialSticker tapbacks are received; the code marks sending them as unsupported	SupportedPeel emoji or images onto messages, send stickers, or place them inline in text.
Formatted text	SupportedBold, italic, underline and strikethrough	SupportedBold, italic, underline and strikethrough ranges, plus animated text. iMessage only.
Attachments	SupportedInline data or MMCS (iCloud) file transfer	SupportedUp to 10MB by URL, 100MB with pre-upload.
Live Photos	PartialReceived attachments carry a Live Photo flag; uploads always set it to false	Not listed
Rich link previews	SupportedLinkMeta with LPLinkMetadata rich link data	Supportedlink parts render as rich previews on iMessage and RCS.
Voice messages	Supportedvoice flag on messages	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	SupportedSetTranscriptBackground sets or removes a chat background	SupportedColor, animated or photo backgrounds, in direct and group chats.
Location sharing	PartialFind My clients read friends' and items' locations; OpenBubbles says sharing live location is unsupported	SupportedRequest, read and stop Find My shares. Live location is a $79/mo add-on on Pro.
iMessage apps	SupportedExtension app balloons with template layouts	SupportedPro plan. Cards from your own Messages extension, or Linq-hosted cards (Experiences).
Live app cards	SupportedUpdateExtension messages update a sent app balloon	SupportedUpdate App Card replaces a delivered iMessage app or Experience card in place.
Sender name and photo	SupportedShare Name and Photo, including contact posters	SupportedContact card API sets name and photo, shared per chat via Name and Photo Sharing.
FaceTime calls	SupportedCreate, ring, join and leave FaceTime sessions	Not supportedDocs say the API does not place or answer calls.
Delivery status	SupportedDelivered and Read receipts plus error messages	Supportedsent, delivered, read and failed webhooks. Groups report sent only.
iMessage availability check	SupportedIDS lookups validate targets before sending	Supportedcheck_imessage and check_rcs endpoints.
Focus and Notify Anyway	SupportedNotifyAnyways messages; StatusKit shares and receives Focus status	Not listed
Numbers and delivery
Managed lines	Not supportedA library; you register your own Apple ID and device identity	Supported
Dedicated numbers	Not supportedNot offered	SupportedPaid lines are dedicated. Provisioned by Linq, no self-serve number API.
Shared numbers	Not supported	SupportedFree Hobby tier uses a Shared Line, inbound-first, 20 contacts.
Bring your own number	SupportedYour own Apple ID; a phone number registers through an iPhone running a relay app	Not listed
Line pooling	Not listed	SupportedManaged load balancing (Pro): send without from and Linq picks and fails over lines.
SMS fallback	Not listed	Supported
RCS fallback	Not listed	SupportedOrder is iMessage, then RCS, then SMS.
Outbound-first messaging	SupportedSend to any handle after an IDS key lookup	SupportedFree Hobby tier is inbound-first. Docs recommend inbound-first flows to avoid flagging.
Calls on the iMessage number	PartialFaceTime on the same Apple ID; no phone calls	PartialAPI forwards inbound calls on the line; outbound needs caller-ID masking via another provider.
Other channels
SMS	PartialSMS message type, sent through text forwarding from a registered iPhone	Supported
RCS	Not listed	Supported
WhatsApp	Not supportedNot offered	BetaSeparate WhatsApp API in beta. Access by request, no SLA.
Telegram	Not supported	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 supportedNot offered; FaceTime only	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	PartialiMessage and forwarded SMS share one message type; no other channels	PartialiMessage, RCS and SMS share one API. WhatsApp is a separate API with its own keys and SDKs.
Developer tools
REST API	Not supportedRust library only; no HTTP API	Supported
TypeScript SDK	Not listedRust crate only	Supported@linqapp/sdk
Python SDK	Not listed	Supportedlinq-python
Other SDKs	PartialThe library itself is a Rust crate; no other language bindings found	SupportedOfficial Go SDK.
CLI	Not listed	Supported@linqapp/cli: signup, sending, and a local webhook listener.
Webhooks	Not supportedLibrary only; your code receives messages directly, no webhooks	Supported
Signed webhooks	Not supportedNo webhooks	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	PartialSource under SSPL v1; the Mac validation-data module is a closed-source stub	PartialSDKs, CLI and adapters are Apache-2.0 or MIT on GitHub. The messaging platform is closed.
Self-hosting	SupportedRuns inside your own application	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	Not listed	SupportedLinq Blue works as a GoHighLevel messaging provider. No n8n, Make or Zapier found for the API.
CRM integrations	Not listed	SupportedVia Linq Blue: GoHighLevel, HubSpot and Salesforce.
Built for AI agents
Agent framework	Not listed	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	Not listed	Not listed
Audit logs	Not listed	SupportedDashboard Activity page plus account-change webhooks with actor and origin.
Message history API	SupportedMessages in iCloud sync for chats, messages and attachments	Supported
Plans and compliance
Free plan	SupportedFree source under SSPL v1	SupportedHobby: $0, up to 20 contacts, through the CLI.
Public pricing	Not listedNo prices or commercial license terms published	SupportedPro from $260/mo. Enterprise is custom.
No per-message fees	SupportedNo fees; free source	Supported
Uptime SLA	Not supportedSSPL disclaims all warranty	SupportedContractual SLAs on the Enterprise plan; marketing cites 99.95%
Isolated infrastructure	SupportedRuns in your own process and infrastructure	SupportedDedicated lines across 4 data centers on paid plans; Hobby uses a shared line
SOC 2 Type II	Not listedSelf-hosted; compliance is up to the operator	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

Which should you choose?

Choose rustpush if you need Live Photos, FaceTime calls, Focus and Notify Anyway and bring your own number.

Choose Linq if you need contact cards, polls, managed lines and dedicated numbers.

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