Business text messaging covers A2P SMS/MMS for notifications, conversations, and marketing. In the US, 10DLC registration, brand/campaign vetting, and carrier filtering shape deliverability as much as API polish.
Score registration support, throughput, inbound/two-way tooling, compliance (opt-in/opt-out), and whether you need a full lifecycle suite or a raw messaging API.
Fit map: Twilio, Bandwidth, Sinch, and Vonage for platform/API builders; Attentive and similar for ecommerce revenue SMS; SimpleTexting/TextRequest for SMB send-and-respond; sales-engagement tools when SMS sits beside dialers.
Shortlist below with eyes open on 10DLC timelines. Pair with SIP trunks if voice and messaging share a CPaaS strategy.
Browse 12 providers
Filter by team size or budget. Each card includes starting price (or Custom when list pricing is unpublished), highlights, pros and cons, and a full profile drawer.
Twilio
Dev Favorite
The developer's toolkit
★
4.6 (scores from published listings)
Starting price
Usage
pay-as-you-go
Best for
Developers building custom apps
Not a phone system app, but a box of legos. Build the phone system you want.
Bandwidth: Carrier-grade messaging for platforms and enterprises.
Pricing caveats
SMS pricing is usage- or credit-based; enterprise CPaaS adds surcharges and carrier fees. 10DLC brand/campaign fees are separate. Never compare sticker rates without deliverability and registration costs.
Published plan pricing
These figures are verified by our editorial team. Prices below reflect the plans we track, not introductory marketing rates. Always confirm taxes, regulatory recovery fees, and add-ons on the quote.
Provider
Starting Price
Plans on File
Twilio
Usage pay-as-you-go
Usage-Based: Usage/min/msg
Telnyx
Usage pay-as-you-go
SIP Trunking: 0.005/per min
Bandwidth
Usage per minute / number
Usage / Custom: Custom
Plivo
Usage per minute
Usage / Custom: Custom
Sinch
Custom usage / enterprise
Usage / Custom: Custom
Infobip
Custom usage / enterprise
Usage / Custom: Custom
SimpleTexting
$39.00 per mo (500-credit class)
500 Credits: $39.00/mo
Higher credit tiers / Custom: Custom/mo
Salesmsg
Custom per user/mo (quote)
Usage / Custom: Custom
EZ Texting
Custom plan-based
Usage / Custom: Custom
Sakari
Custom per user/mo (quote)
Usage / Custom: Custom
Textedly
$14.00 per mo class plans
Entry: $14.00/mo class plans
Growth / Enterprise: Custom
Attentive
Custom enterprise quote
Usage / Custom: Custom
Scenario verdicts
Your situation
Start here
Why
Ecommerce SMS revenue program
Attentive
Lifecycle journeys
Retail focus
Growth playbooks
Global WhatsApp + SMS
Sinch
Global channels
Enterprise messaging
CPaaS breadth
Cost-sensitive startup APIs
Plivo
Competitive usage
SMS + voice
Developer docs
Local business promos
Textedly
Simple plans
Campaign basics
SMB onboarding
Five capabilities that change buying outcomes
Pressure-test these on your shortlist—what each capability does, and the buyer outcome it unlocks.
10DLC / brand & campaign registration
US A2P traffic needs brand and campaign registration. Providers differ in guided setup, status visibility, and support when carriers stall.
Buyer outcome: treat registration as a project plan, not a checkbox—delays hit launch dates.
Deliverability & carrier filtering
Throughput and filtering depend on use case, content, and reputation. Marketing and mixed-use traffic need different designs than pure OTPs.
Buyer outcome: ask for deliverability playbooks and sample campaign structures for your traffic type.
Two-way conversations & agent tools
Notifications are one-way; support/sales need shared inboxes, assignments, and CRM sync.
Buyer outcome: decide API-only vs agent workspace before you shortlist.
Opt-in, STOP handling, and audit trails
Consent and HELP/STOP handling are table stakes. Weak audit trails create legal and carrier risk.
Buyer outcome: require documented consent flows and exportable logs.
MMS, short codes, and toll-free options
Rich media, short codes, and toll-free SMS fit different volumes and brands. Not every provider is strong across all three.
Buyer outcome: match number types to use case instead of defaulting to long code everywhere.
Frequently asked questions
What is 10DLC and why do I care?
10DLC is the US framework for A2P messaging over local 10-digit numbers. Brands and campaigns are registered so carriers can evaluate traffic and apply limits.
If you skip or misregister, messages fail or land in spam-like filtering. It affects marketers and developers alike.
Build registration into your project plan before cutover day.
Should I use a toll-free number for SMS instead?
Toll-free SMS has its own verification process and can suit some use cases, but it is not a free pass on compliance. Local 10DLC remains common for many conversational use cases.
Ask providers which number types fit your campaign classes and deliverability goals.
Choose based on use case and verification timelines, not folklore.
CPaaS API or SMB SMS platform?
Use CPaaS when messaging is inside your product or you need programmable workflows at scale. Use SMB platforms when marketers need self-serve campaigns and inboxes without engineering.
Mid-market revenue teams often land on CRM-centric SMS tools as a middle path.
You can dual-stack—Twilio for product OTP plus SimpleTexting for promos—if governance is clear.
How do I compare SMS price honestly?
Include carrier fees, MMS premiums, failed-message retries, number rental, platform minimums, and registration fees. International adds another matrix.
Cheap messages that do not deliver are infinitely expensive. Add a deliverability score to the RFP.
Request sample invoices from references in your industry.
Can I text customers without explicit consent?
US marketing texts generally require proper consent and opt-out handling; transactional messages have different norms but still need careful legal review. This page is not legal advice—involve counsel.
Platforms provide tools; they do not absorb your compliance obligations. Misuse gets numbers shut down.
Document consent source on every campaign before scale.
How does business SMS relate to our phone system?
Some UCaaS vendors include SMS on business numbers; others do not. High-volume A2P often moves to specialized messaging platforms even if calling stays on UCaaS.
Avoid splitting customer identity across unrelated numbers without a plan. Align caller ID and SMS sender strategy.
See /compare for phone systems and this page for A2P depth.
What KPIs matter for SMS programs?
Deliverability, opt-out rate, response time for conversational SMS, conversion for marketing, and cost per successful notification for product traffic.
For sales SMS, measure meetings booked and CRM logging completeness—not raw send volume.
Review carrier rejection codes monthly; silent degradation is common.
How long does migration between SMS providers take?
Number transfers, campaign re-registration, template rewrites, and integration rewiring drive the timeline—often weeks, not hours. Parallel-running old and new paths reduces risk.
Freeze noncritical campaign experiments during cutover. Keep OTP paths on the most trusted route until metrics stabilize.
Assign a single deliverability owner for the migration window.
