Comparison
Overview
Company snapshot and where each provider is based.
| Field | SMS.to | Telnyx |
|---|---|---|
| What it is | Omnichannel business messaging platform and API from Cyprus-based Intergo Telecom for sending SMS, Viber, WhatsApp, RCS and Telegram messages worldwide. | Telnyx is a licensed telecom carrier offering a CPaaS platform with APIs for SMS, MMS, RCS, WhatsApp, voice, and email over its own private global IP network. |
| Founded | 2016 | 2009 |
| Ownership | private | private |
| Employees | 51-200 | 201-500 |
| HQ city | Paphos | Chicago |
| HQ country | Cyprus (EU) | USA |
What's the differenceTelnyx edges ahead on the overall messaging.dev Score (78 vs 49). SMS.to is private and headquartered in Paphos, Cyprus (EU); Telnyx is private and based in Chicago, USA.
Channels
Which messaging channels each provider can send and receive on.
| Field | SMS.to | Telnyx |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | Yes |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | Yes | No |
| Facebook Messenger | No | No |
| Telegram | Yes | No |
| Apple Messages for Business | No | No |
| Voice | No | Yes |
| No | Yes |
What's the differenceThey share 3 channels. SMS.to additionally offers Viber, Telegram, while Telnyx additionally offers MMS, Voice, Email.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | SMS.to | Telnyx |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | Free trial credits on sign-up | No |
| Docs quality | med | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | PHP | Node.js, Python, Ruby, Go, Java, .NET, PHP |
| Sandbox / test env | No | No |
| API types | REST, SMPP | REST, SMPP |
What's the differenceOn SDKs, Telnyx adds Node.js, Python, Ruby, Go, Java, .NET.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | SMS.to | Telnyx |
|---|---|---|
| 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 differenceTelnyx offers SOC 2, while SMS.to does not; Telnyx 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 | Telnyx |
|---|---|---|
| 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. | Telnyx follows a "Privacy by Design", minimal data-retention approach with customer-controlled retention policies, so message content and metadata retention can be configured by the customer. Its security-practices documentation states security logs are retained for 90 days; specific default retention periods for message content are not publicly documented in detail. |
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. Telnyx: Telnyx follows a "Privacy by Design", minimal data-retention approach with customer-controlled retention policies, so message content and metadata retention can be configured by the customer. Its security-practices documentation states security logs are retained for 90 days; specific default retention periods for message content are not publicly documented in detail.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | SMS.to | Telnyx |
|---|---|---|
| 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 billed per message part, with volume discounts and custom contracts for high-volume customers. |
| SMS starting price | From $0.023 per SMS (advertised base rate; per-country rates via downloadable price list) | $0.004 per outbound SMS message part (US, plus carrier fees) |
| Free developer credit | Free trial credits on sign-up | No |
What's the differenceSMS.to and Telnyx are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | SMS.to | Telnyx |
|---|---|---|
| Countries covered | 0 | 130 |
| Direct operator connections | Yes | Yes |
| Published uptime SLA | No published SLA (public status page at status.sms.to) | 99.99% (SLA) |
What's the differenceTelnyx leads on Countries covered (130 vs 0 for SMS.to).
Company & Trust
Independent reviews and company profile.
| Field | SMS.to | Telnyx |
|---|---|---|
| G2 rating | 4.4 | 4.7 |
| G2 reviews | 4 | 525 |
| Ownership | private | private |
| Employees | 51-200 | 201-500 |
What's the differenceTelnyx leads on G2 rating (4.7 vs 4.4 for SMS.to); Telnyx leads on G2 reviews (525 vs 4 for SMS.to).
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