Comparison
Overview
Company snapshot and where each provider is based.
| Field | seven.io | Telesign |
|---|---|---|
| What it is | German CPaaS platform (formerly sms77) providing SMS, RCS, WhatsApp and voice APIs with data processed on German-hosted infrastructure. | Digital identity and programmable communications platform offering SMS, RCS, voice, WhatsApp, Viber and email APIs alongside phone verification and fraud-prevention services. |
| Founded | 2003 | 2005 |
| Ownership | private | private |
| Employees | 2-10 | 500-1,000 |
| HQ city | Kiel | Marina del Rey |
| HQ country | Germany (EU) | USA |
What's the differenceTelesign edges ahead on the overall messaging.dev Score (70 vs 42). seven.io is private and headquartered in Kiel, Germany (EU); Telesign is private and based in Marina del Rey, USA.
Channels
Which messaging channels each provider can send and receive on.
| Field | seven.io | Telesign |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | No |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | No | Yes |
| Facebook Messenger | No | No |
| Telegram | No | No |
| Apple Messages for Business | No | No |
| Voice | Yes | Yes |
| No | Yes |
What's the differenceThey share 4 channels. Telesign additionally offers Viber, Email.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | seven.io | Telesign |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | €0.50 free test credit | Yes |
| Docs quality | high | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | PHP, JavaScript, Python, Go, Ruby, .NET, Rust, Kotlin, Elixir, Swift | C#, Java, Node.js, PHP, Python, Ruby |
| Sandbox / test env | Yes | No |
| API types | REST, SMPP, SMTP | REST |
What's the differenceOn SDKs, seven.io adds JavaScript, Go, .NET, Rust, Kotlin, Elixir, Swift; Telesign adds C#, Java, Node.js; seven.io offers Sandbox / test env, while Telesign does not; on API types, seven.io adds SMPP, SMTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | seven.io | Telesign |
|---|---|---|
| EU data residency | Yes | 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 US data residency, while seven.io does not; Telesign offers SOC 2, while seven.io does not; Telesign offers HIPAA, while seven.io does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | seven.io | Telesign |
|---|---|---|
| Retention policy | Log files are stored only for the legally required period and subsequently anonymized, following a stated data-minimization principle; exact message-content retention periods are not publicly documented in detail. Processing runs on German/EU infrastructure ("Pure EU Routing") in ISO 27001-certified data centers, with an online-signable DPA available. | 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 differenceseven.io: Log files are stored only for the legally required period and subsequently anonymized, following a stated data-minimization principle; exact message-content retention periods are not publicly documented in detail. Processing runs on German/EU infrastructure ("Pure EU Routing") in ISO 27001-certified data centers, with an online-signable DPA available. 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 | seven.io | Telesign |
|---|---|---|
| Pricing model | Prepaid pay-as-you-go: top up account balance and pay per message sent, with no monthly fee or subscription required for API access. | 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 | €0.075 per SMS (base rate incl. Germany and most EU countries); non-EU rates vary by country | Not published |
| Free developer credit | €0.50 free test credit | Yes |
What's the differenceseven.io and Telesign are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | seven.io | Telesign |
|---|---|---|
| Countries covered | 0 | 230 |
| Direct operator connections | No | Yes |
| Published uptime SLA | No published SLA | No published SLA |
What's the differenceTelesign leads on Countries covered (230 vs 0 for seven.io); Telesign offers Direct operator connections, while seven.io does not.
Company & Trust
Independent reviews and company profile.
| Field | seven.io | Telesign |
|---|---|---|
| G2 rating | 0.0 | 4.3 |
| G2 reviews | 0 | 20 |
| Ownership | private | private |
| Employees | 2-10 | 500-1,000 |
What's the differenceTelesign leads on G2 rating (4.3 vs 0 for seven.io); Telesign leads on G2 reviews (20 vs 0 for seven.io).
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