Comparison
Overview
Company snapshot and where each provider is based.
| Field | Mitto | SMS.to |
|---|---|---|
| What it is | Swiss omnichannel CPaaS provider offering SMS, RCS, WhatsApp, Viber, Telegram, Facebook Messenger and voice messaging APIs for business communications. | Omnichannel business messaging platform and API from Cyprus-based Intergo Telecom for sending SMS, Viber, WhatsApp, RCS and Telegram messages worldwide. |
| Founded | 2013 | 2016 |
| Ownership | private | private |
| Employees | 100-250 | 51-200 |
| HQ city | Zug | Paphos |
| HQ country | Switzerland | Cyprus (EU) |
What's the differenceSMS.to edges ahead on the overall messaging.dev Score (49 vs 48). Mitto is private and headquartered in Zug, Switzerland; SMS.to is private and based in Paphos, Cyprus (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | Mitto | SMS.to |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | No |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | Yes | Yes |
| Facebook Messenger | Yes | No |
| Telegram | Yes | Yes |
| Apple Messages for Business | No | No |
| Voice | Yes | No |
| No | No |
What's the differenceThey share 5 channels. Mitto additionally offers Facebook Messenger, Voice.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | Mitto | SMS.to |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | No | Free trial credits on sign-up |
| Docs quality | med | med |
| Documentation | Open ↗ | Open ↗ |
| SDKs | — | PHP |
| Sandbox / test env | Yes | No |
| API types | REST, SMPP | REST, SMPP |
What's the differenceOn SDKs, SMS.to adds PHP; Mitto offers Sandbox / test env, while SMS.to does not.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | Mitto | SMS.to |
|---|---|---|
| EU data residency | No | Yes |
| US data residency | No | Yes |
| Choose region | No | Yes |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | Yes |
| SOC 2 | No | No |
| HIPAA | No | No |
What's the differenceSMS.to offers EU data residency, while Mitto does not; SMS.to offers US data residency, while Mitto does not; SMS.to offers Choose region, while Mitto does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | Mitto | SMS.to |
|---|---|---|
| Retention policy | Per-message retention of content (textRetention) and of the recipient number (toRetention) can be set per API request to Undefined, Retain, or Discard; no global retention duration is publicly documented. Per the privacy policy, account/registration data is kept until deletion is requested and contact-form data until the conversation ends. | 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. |
What's the differenceMitto: Per-message retention of content (textRetention) and of the recipient number (toRetention) can be set per API request to Undefined, Retain, or Discard; no global retention duration is publicly documented. Per the privacy policy, account/registration data is kept until deletion is requested and contact-form data until the conversation ends. SMS.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.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | Mitto | SMS.to |
|---|---|---|
| Pricing model | Pay-as-you-go — pay only for what you use with no contracts, plus volume discounts and custom plans via sales. | Prepaid pay-as-you-go credit with no contracts or commitments; per-SMS rates vary by destination and volume discounts are negotiated with sales. |
| SMS starting price | Not published | From $0.023 per SMS (advertised base rate; per-country rates via downloadable price list) |
| Free developer credit | No | Free trial credits on sign-up |
What's the differenceMitto and SMS.to are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | Mitto | SMS.to |
|---|---|---|
| Countries covered | 230 | 0 |
| Direct operator connections | Yes | Yes |
| Published uptime SLA | No published SLA | No published SLA (public status page at status.sms.to) |
What's the differenceMitto leads on Countries covered (230 vs 0 for SMS.to).
Company & Trust
Independent reviews and company profile.
| Field | Mitto | SMS.to |
|---|---|---|
| G2 rating | 4.0 | 4.4 |
| G2 reviews | 2 | 4 |
| Ownership | private | private |
| Employees | 100-250 | 51-200 |
What's the differenceSMS.to leads on G2 rating (4.4 vs 4 for Mitto); SMS.to leads on G2 reviews (4 vs 2 for Mitto).
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