Comparison
Overview
Company snapshot and where each provider is based.
| Field | SMS.to | Vonage |
|---|---|---|
| What it is | Omnichannel business messaging platform and API from Cyprus-based Intergo Telecom for sending SMS, Viber, WhatsApp, RCS and Telegram messages worldwide. | Communications APIs for SMS, voice, video, and messaging (part of Ericsson) |
| Founded | 2016 | 2001 |
| Ownership | private | public |
| Employees | 51-200 | 2,000-3,000 |
| HQ city | Paphos | Holmdel |
| HQ country | Cyprus (EU) | USA |
What's the differenceVonage edges ahead on the overall messaging.dev Score (89 vs 49). SMS.to is private and headquartered in Paphos, Cyprus (EU); Vonage is public and based in Holmdel, USA.
Channels
Which messaging channels each provider can send and receive on.
| Field | SMS.to | Vonage |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | Yes |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | Yes | Yes |
| Facebook Messenger | No | Yes |
| Telegram | Yes | No |
| Apple Messages for Business | No | No |
| Voice | No | Yes |
| No | No |
What's the differenceThey share 4 channels. SMS.to additionally offers Telegram, while Vonage additionally offers MMS, Facebook Messenger, Voice.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | SMS.to | Vonage |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | Free trial credits on sign-up | €2 free trial credit |
| Docs quality | med | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | PHP | Node.js, Python, PHP, Java, C#, Ruby, Kotlin |
| Sandbox / test env | No | Yes |
| API types | REST, SMPP | REST |
What's the differenceOn SDKs, Vonage adds Node.js, Python, Java, C#, Ruby, Kotlin; Vonage offers Sandbox / test env, while SMS.to does not; on API types, SMS.to adds SMPP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | SMS.to | Vonage |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | Yes | Yes |
| Choose region | Yes | Yes |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | Yes |
| SOC 2 | No | Yes |
| HIPAA | No | Yes |
What's the differenceVonage offers SOC 2, while SMS.to does not; Vonage offers HIPAA, while SMS.to does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | SMS.to | Vonage |
|---|---|---|
| Retention policy | Customer data is retained only while the account remains open; on an account deletion request all data is deleted within 30 days. Customers can choose to have data processed only within the EU, in which case it is not transferred outside the EU; per-message content retention periods are not publicly documented in detail. | Vonage retains message and call records to provide services and meet legal obligations; message content retention is limited and, for some APIs, configurable, with data-processing terms available for enterprise customers. |
What's the differenceSMS.to: Customer data is retained only while the account remains open; on an account deletion request all data is deleted within 30 days. Customers can choose to have data processed only within the EU, in which case it is not transferred outside the EU; per-message content retention periods are not publicly documented in detail. Vonage: Vonage retains message and call records to provide services and meet legal obligations; message content retention is limited and, for some APIs, configurable, with data-processing terms available for enterprise customers.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | SMS.to | Vonage |
|---|---|---|
| Pricing model | Prepaid pay-as-you-go credit with no contracts or commitments; per-SMS rates vary by destination and volume discounts are negotiated with sales. | Pay-as-you-go per message/minute with volume discounts |
| SMS starting price | From $0.023 per SMS (advertised base rate; per-country rates via downloadable price list) | Approx. $0.0072 per US SMS segment (plus carrier fees) |
| Free developer credit | Free trial credits on sign-up | €2 free trial credit |
What's the differenceSMS.to and Vonage are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | SMS.to | Vonage |
|---|---|---|
| Countries covered | 0 | 200 |
| Direct operator connections | Yes | Yes |
| Published uptime SLA | No published SLA (public status page at status.sms.to) | 99.95% |
What's the differenceVonage leads on Countries covered (200 vs 0 for SMS.to).
Company & Trust
Independent reviews and company profile.
| Field | SMS.to | Vonage |
|---|---|---|
| G2 rating | 4.4 | 4.3 |
| G2 reviews | 4 | 200 |
| Ownership | private | public |
| Employees | 51-200 | 2,000-3,000 |
What's the differenceSMS.to leads on G2 rating (4.4 vs 4.3 for Vonage); Vonage leads on G2 reviews (200 vs 4 for SMS.to).
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