Linq Alternatives with Uptime SLA
31 providers support uptime SLA: uptime SLA (contractual).
Providers with uptime SLA
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)
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
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
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
Miss Blue
Dedicated iMessage line with API, team inbox and calling
- Starting price
- $99/month per number (launch price)
- Free plan
- Free sandbox; 30-minute live demo line
Bland
Voice AI platform with SMS, RCS and branded iMessage agents
- Starting price
- Custom (iMessage is Enterprise only); SMS from $29.99/month on the Agent Phone Plan
- Free plan
- Start plan: free, with credits and an inbound number, for voice
Dial
Phone numbers with calls, SMS and iMessage for AI agents
- Starting price
- $3/month per standard number; $250/month per iMessage number
- Free plan
- $5 free credit, no credit card required
MessageBlue
iMessage API for agents, with bring-your-own-number
- Starting price
- $100/month per line
- Free plan
- $0 with your own number and Mac, all features, limited seats
autoMessage
iMessage API, MCP server and webhooks on your own Mac
- Starting price
- $59/month (Solo)
- Free plan
- 14-day free trial, no credit card to start
Twilio
Global CPaaS for SMS, RCS, WhatsApp and voice
- Starting price
- $0.0083 per US SMS segment
- Free plan
- 30-day free trial, no card, with 100 SMS and 75 voice minutes
Blue Replies
iMessage and FaceTime API with a free phone-bound sandbox
- Starting price
- Custom quote
- Free plan
- Sandbox: free, no expiry, your own phone plus up to 5 verified contacts
Orbit by Devotel
Pay-as-you-go CPaaS with AI agents on every channel
- Starting price
- $0.0075 per US SMS segment
- Free plan
- Free signup with simulated sandbox sends
Telnyx
Low per-part SMS pricing with carrier fees at cost
- Starting price
- $0.004 per US SMS part plus carrier fee
- Free plan
- Trial account with $5 testing credit
Vonage
Messages API for SMS, RCS, WhatsApp, Viber and email
- Starting price
- $0.00860 per US SMS on a long virtual number, plus carrier fees
- Free plan
- Free credit at signup with no card, and a free Messages API Sandbox capped at 100 messages a month
Sinch
CPaaS with 13 messaging channels in one API
- Starting price
- $0.0078 per US 10DLC SMS, plus carrier fees
- Free plan
- Free developer account with an SMS sandbox and test credit
Plivo
Voice AI and CPaaS with SMS, WhatsApp and SIP APIs
- Starting price
- $1,000/month Enterprise minimum for SMS; US SMS $0.0077 per message plus carrier fees
- Free plan
- $10 in free credits on pay as you go (voice and SIP; no SMS in the US)
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
Gupshup
Conversational AI platform for WhatsApp, RCS, SMS and voice
- Starting price
- $99/month plus per-message rates
- Free plan
- None on the self-serve plan; a WhatsApp offer page lists 3 months free
Webex Connect
Cisco's enterprise CPaaS with Apple Messages for Business
- Starting price
- Custom (contact Cisco)
- Free plan
- Free sandbox: 10,000 SMS and WhatsApp requests within 365 days, up to 5 verified numbers
CM.com
One messaging API for SMS, RCS, WhatsApp and more
- Starting price
- $58/month (Channels Go, 1 profile) plus usage
- Free plan
- Business Messaging trial without onboarding
SignalWire
Voice, messaging and AI agents from the FreeSWITCH team
- Starting price
- $0.00415 per US 10DLC SMS segment plus carrier fees
- Free plan
- Trial mode at signup; add $5 credit to exit
Clerk AI
AI voice, RCS and SMS agents for outbound lead qualification
- Starting price
- $0 (Pay as you Go, 100 credits); Startup $149/month
- Free plan
- Pay as you Go: free with 100 credits, then $0.045 per credit
Pinnacle
RCS and SMS API with voice and per-account iMessage
- Starting price
- $0.015 per SMS segment plus a quoted monthly base
- Free plan
- None stated; self-serve sandbox and test numbers
Sent
One API for SMS, WhatsApp and RCS with automatic routing
- Starting price
- $0.015 per active contact a month plus carrier fees (US SMS shown at $0.0047)
- Free plan
- Light onboarding: 6 pre-built OTP templates, 500 sends a day, no card
VoidFix Gateway
SMS, WhatsApp and iMessage from your own phones
- Starting price
- $99/month per iMessage line (your own iPhone)
- Free plan
- 7-day trials for SMS and WhatsApp only; none for iMessage
SentFromAI
Email inboxes for AI agents, with iMessage in early access
- Starting price
- $19/month (Pro, email)
- Free plan
- Free: 5 inboxes, 5,000 emails a month, 5 GB storage, no card (email only)
Dexatel
SMS, Viber, WhatsApp and OTP API with channel fallback
- Starting price
- $0.0229 per US SMS
- Free plan
- 30-day free trial with test credits, no card
Saperly
Phone numbers with voice and SMS for AI agents
- Starting price
- Numbers from $2/month plus usage
- Free plan
- $5 signup credit that never expires, no card to start
smsmode
French SMS, RCS, WhatsApp and TTS messaging platform
- Starting price
- €9/month (Basic) or €61 for a 1,000 SMS prepaid pack (France)
- Free plan
- 20 free test credits
Vernacular
iMessage lines with AI-drafted replies you approve
- Starting price
- $899/month per line (Growth); Support has $1,000 setup and no minimum
- Free plan
- Free trial offered; terms not stated
Signalmash
US SMS, RCS, voice and SIP with managed 10DLC compliance
- Starting price
- $19/month platform fee plus $0.0039 per SMS segment
- Free plan
- None found
Not supported or not listed
- LoopMessage
- ChertNot listed
- Claw Messenger
- Texting Blue
- BlueBubbles
- Apple Messages for BusinessNot listed
- Bird
- InfobipNot listedNo SLA figure in the public terms, which promise reasonable skill and care
- adit
- AgentCallNot listed
- AgenticMail
- AgentLine
- AgentMessage
- AgentNumberNot listed
- AgentPhone
- Apple Messages MCP
- ArtilNot listedTerms provide the service as is; a status page exists but no SLA was found.
- Beam
- beeperbox
- Blue ReacherNot listed
- BlueSendr
- CaspianNot listed
- Chatbubbles
- Comms by OsisNot listed
- Crypton.sh Blue Relay
- imsg (gnufood)
- GoGHL
- Hail
- iBlueText
- imbridge
- iMessage Max
- iMessage Relay
- imessage-rs
- imessage-sdk
- iMessage Sender
- InkboxNot listed
- iSnap
- Mac Messages MCP
- mautrix-gmessages
- mautrix-imessage
- myCRMSIMNot listed
- OpenClaw imsg
- OpenMessage
- Project BlueNot listedSite cites a 99.9% uptime record and a public status page. No contractual SLA found.
- rustpush
- Sendara
- senderZ
- SendiMessage
- Tuco AINot listedGrowth lists a 4-hour support SLA. No uptime SLA found.
- UnipileNot listedSecurity page shows 99.9% uptime over 24 months; no contractual SLA found.
- ZernioNot listedSite states 99.97% uptime; no contractual SLA found.
- ZeroSettle
- BandwidthNot listedSite cites 99.999% core network uptime; no contractual SLA terms found
- Cadence
- ClickSendNot listed
- CommioNot listed
- ContiguityNot listedDocs say Contiguity aims for over 99.99%; no contractual SLA found
- GatewayAPINot listedAn extended support SLA is an add-on; the site cites historical uptime above 99.99%
- MessenteNot listed
- Mobile Text AlertsNot listed
- RouteeNot listed
- Signal HouseNot listed
- SurgeNot listedPublic status page; no SLA figure found
- TelgorithmNot listedPublic status page; no SLA figure found
- TextGrid
- TXTImpactNot listed