Comparison
Overview
Company snapshot and where each provider is based.
| Field | Mitto | Telesign |
|---|---|---|
| What it is | Swiss omnichannel CPaaS provider offering SMS, RCS, WhatsApp, Viber, Telegram, Facebook Messenger and voice messaging APIs for business communications. | Digital identity and programmable communications platform offering SMS, RCS, voice, WhatsApp, Viber and email APIs alongside phone verification and fraud-prevention services. |
| Founded | 2013 | 2005 |
| Ownership | private | private |
| Employees | 100-250 | 500-1,000 |
| HQ city | Zug | Marina del Rey |
| HQ country | Switzerland | USA |
What's the differenceTelesign edges ahead on the overall messaging.dev Score (70 vs 48). Mitto is private and headquartered in Zug, Switzerland; Telesign is private and based in Marina del Rey, USA.
Channels
Which messaging channels each provider can send and receive on.
| Field | Mitto | Telesign |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | No |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | Yes | Yes |
| Facebook Messenger | Yes | No |
| Telegram | Yes | No |
| Apple Messages for Business | No | No |
| Voice | Yes | Yes |
| No | Yes |
What's the differenceThey share 5 channels. Mitto additionally offers Facebook Messenger, Telegram, while Telesign additionally offers Email.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | Mitto | Telesign |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | No | Yes |
| Docs quality | med | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | — | C#, Java, Node.js, PHP, Python, Ruby |
| Sandbox / test env | Yes | No |
| API types | REST, SMPP | REST |
What's the differenceOn SDKs, Telesign adds C#, Java, Node.js, PHP, Python, Ruby; Mitto offers Sandbox / test env, while Telesign does not; on API types, Mitto adds SMPP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | Mitto | Telesign |
|---|---|---|
| EU data residency | No | Yes |
| US data residency | No | Yes |
| Choose region | No | No |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | Yes |
| SOC 2 | No | Yes |
| HIPAA | No | Yes |
What's the differenceTelesign offers EU data residency, while Mitto does not; Telesign offers US data residency, while Mitto does not; Telesign offers SOC 2, while Mitto does not; Telesign offers HIPAA, while Mitto does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | Mitto | Telesign |
|---|---|---|
| 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 transaction data is retained for 90 days for operational troubleshooting and billing purposes, with full backups maintained across two separate data centers also kept for 90 days. |
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. Telesign: Customer transaction data is retained for 90 days for operational troubleshooting and billing purposes, with full backups maintained across two separate data centers also kept for 90 days.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | Mitto | Telesign |
|---|---|---|
| Pricing model | Pay-as-you-go — pay only for what you use with no contracts, plus volume discounts and custom plans via sales. | Pay-as-you-go per-message/per-transaction pricing with volume-based enterprise contracts; public per-message rates are not transparently listed. |
| SMS starting price | Not published | Not published |
| Free developer credit | No | Yes |
What's the differenceMitto and Telesign are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | Mitto | Telesign |
|---|---|---|
| Countries covered | 230 | 230 |
| Direct operator connections | Yes | Yes |
| Published uptime SLA | No published SLA | No published SLA |
What's the differenceMitto and Telesign are closely matched on reach & reliability — no material differences in the tracked fields.
Company & Trust
Independent reviews and company profile.
| Field | Mitto | Telesign |
|---|---|---|
| G2 rating | 4.0 | 4.3 |
| G2 reviews | 2 | 20 |
| Ownership | private | private |
| Employees | 100-250 | 500-1,000 |
What's the differenceTelesign leads on G2 rating (4.3 vs 4 for Mitto); Telesign leads on G2 reviews (20 vs 2 for Mitto).
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