Comparison
Overview
Company snapshot and where each provider is based.
| Field | seven.io | SmsManager |
|---|---|---|
| What it is | German CPaaS platform (formerly sms77) providing SMS, RCS, WhatsApp and voice APIs with data processed on German-hosted infrastructure. | Czech bulk-messaging platform for sending SMS, WhatsApp, Viber and RCS messages from a web application or a single JSON API, with direct connections to local mobile operators. |
| Founded | 2003 | 2011 |
| Ownership | private | private |
| Employees | 2-10 | 1-5 |
| HQ city | Kiel | Prague |
| HQ country | Germany (EU) | Czech Republic (EU) |
What's the differenceSmsManager edges ahead on the overall messaging.dev Score (51 vs 42). seven.io is private and headquartered in Kiel, Germany (EU); SmsManager is private and based in Prague, Czech Republic (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | seven.io | SmsManager |
|---|---|---|
| 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 | Yes |
| Voice | Yes | No |
| No | No |
What's the differenceThey share 3 channels. seven.io additionally offers Voice, while SmsManager additionally offers Viber, Apple Messages for Business.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | seven.io | SmsManager |
|---|---|---|
| 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 | JavaScript/TypeScript, PHP |
| Sandbox / test env | Yes | Yes |
| API types | REST, SMPP, SMTP | REST |
What's the differenceOn SDKs, seven.io adds JavaScript, Python, Go, Ruby, .NET, Rust, Kotlin, Elixir, Swift; SmsManager adds JavaScript/TypeScript; on API types, seven.io adds SMPP, SMTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | seven.io | SmsManager |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | No | No |
| Choose region | No | No |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | No |
| SOC 2 | No | No |
| HIPAA | No | No |
What's the differenceSeven.io offers ISO 27001, while SmsManager does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | seven.io | SmsManager |
|---|---|---|
| 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. | Under the published GDPR data processing agreement, message records (phone number and message text) older than 12 months are automatically deleted by default unless otherwise agreed; encrypted backups are kept 30 days and system logs 180 days. After contract termination, personal data is deleted or exported (CSV) free of charge within 30 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. SmsManager: Under the published GDPR data processing agreement, message records (phone number and message text) older than 12 months are automatically deleted by default unless otherwise agreed; encrypted backups are kept 30 days and system logs 180 days. After contract termination, personal data is deleted or exported (CSV) free of charge within 30 days.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | seven.io | SmsManager |
|---|---|---|
| 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. | Prepaid credit pay-as-you-go: free account, non-expiring credit topped up by card or bank transfer, charged only per message sent, with volume-tiered discounts and optional subscription add-on services. |
| SMS starting price | €0.075 per SMS (base rate incl. Germany and most EU countries); non-EU rates vary by country | €0.0356 per SMS to the Czech Republic (5,001-10,000 message volume tier; promotional rate €0.032), other destinations priced per country |
| Free developer credit | €0.50 free test credit | Yes |
What's the differenceseven.io and SmsManager are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | seven.io | SmsManager |
|---|---|---|
| Countries covered | 0 | 175 |
| Direct operator connections | No | Yes |
| Published uptime SLA | No published SLA | No published SLA (individual SLA agreements available) |
What's the differenceSmsManager leads on Countries covered (175 vs 0 for seven.io); SmsManager offers Direct operator connections, while seven.io does not.
Company & Trust
Independent reviews and company profile.
| Field | seven.io | SmsManager |
|---|---|---|
| G2 rating | 0.0 | 0.0 |
| G2 reviews | 0 | 0 |
| Ownership | private | private |
| Employees | 2-10 | 1-5 |
What's the differenceseven.io and SmsManager are closely matched on company & trust — no material differences in the tracked fields.
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