SMS.to

Overview

SMS.to is an SMS gateway and messaging platform run by Intergo Telecom Ltd in Paphos, Cyprus. It sells pay-as-you-go SMS through a REST API, SMPP and a web platform for bulk campaigns, notifications and OTPs, and says more than 1,000 businesses use it. The site lists WhatsApp, RCS and Telegram as channels, but the public API docs cover SMS and Viber.

Key features

• REST API for single and bulk SMS, with per-message callback URLs and an SMPP option
• Viber Business Messages with images and SMS fallback
• Virtual mobile numbers and toll-free numbers for two-way SMS
• Status webhooks for sent messages, in JSON or form format
• Verify API for OTP, HLR and MNP number lookups, contact lists and short links
• Team management, SDKs and integrations

Pricing

Pay as you go with no contract. SMS is priced per country; the price shown for the United States is €0.022 per SMS. Receiving SMS, Viber, WhatsApp and RCS are priced on request, and high-volume senders can ask for discounts. A free trial is offered.

How it compares to Linq

SMS.to has no iMessage, which is Linq's main channel. Linq offers RCS in its API, while SMS.to lists RCS as a contact-sales service. SMS.to charges per message; Linq charges a flat monthly fee from $260 for Pro with no per-message fees.

Best for

Businesses sending bulk or transactional SMS to many countries, with Viber where it is popular.

Sources

• sms.to
• sms.to/pricing
• sms.to/features
• sms.to/about-us
• developers.sms.to