SMS.to
SMS.to: A paid SMS platform for notifications, two-way messaging, and campaign workflows. Ranked #31 of 32 in SMS APIs by our editors (6.1/10); pricing: Paid; best for SMS notifications and campaign workflows.
At a glance
- Editor score6.1 / 10
- PricingPaid
- Best forSMS notifications and campaign workflows
- Free planNo
- Two-way SMSYes
- Facts checked17 Sep 2026
Where it wins
- REST API supports notifications, OTP, reminders, and two-factor authentication
- Two-way SMS includes inbound callbacks and virtual mobile numbers
- Campaign tools add tracking, personalization, opt-outs, and compliance features
Where it doesn't
- There is no free plan
- Country-specific pricing can make costs harder to compare
- Receiving SMS requires contacting sales
Our verdict on SMS.to
SMS.to is a paid business messaging platform with web and API access. It is designed for teams sending transactional notifications, OTPs, reminders, two-factor authentication messages, marketing campaigns, surveys, and two-way SMS. Developers can connect through a REST API, while messaging teams can use the web application for bulk campaigns and contact-list broadcasts. Virtual mobile, toll-free, and short-code number options support inbound communication and campaign operations.
The platform’s standout strength is the breadth of its SMS workflow features. Outbound delivery-status callbacks and inbound message callbacks can send events to customer endpoints, supporting application-driven messaging flows. Short-link tracking and click analytics add campaign measurement, while dynamic fields enable personalized messages. SMPP connectivity extends the platform beyond REST API integrations, and opt-out and compliance tooling addresses common requirements for business messaging. This combination suits organizations that need more than one-way alert delivery.
Pricing follows a pay-as-you-go SMS model with no contracts or commitments. Country-specific prices are available, and volume discounts may be available. The published plan structure is straightforward, but teams operating across multiple destinations should review country rates before estimating campaign costs. Receiving SMS is handled through a sales conversation. SMS.to is a strong fit for businesses that want notifications, two-way messaging, callbacks, and campaign features in one service. Teams seeking a free starting tier or a simpler alert-only tool should consider a narrower option instead.
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SMS.to fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Two-way SMS | Yes |
| Inbound webhooks | Yes |
| MMS support | Not verified |
| Short code support | Yes |
| Toll-free numbers | Yes |
| SDK languages | PHP |
| Deployment | Cloud |
| Platforms | Web |
| Pricing | Paid (source) |
| Website | sms.to |
| Facts checked | 17 Sep 2026 |
Alternatives to SMS.to
- Twilio Programmable MessagingA mature, developer-focused API for programmable SMS and MMS messaging.9.4
- Bandwidth Messaging APIA broad, API-first messaging stack for enterprise U.S. applications.9.2
- Sinch SMS APIA developer-focused SMS API for two-way messaging, scheduled batches, and delivery reporting.9.1
Also Ranked In
SMS.to is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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