Comparison
Overview
Company snapshot and where each provider is based.
| Field | Rule | seven.io |
|---|---|---|
| What it is | Swedish marketing automation platform (Rule Communication Nordic AB) for email, SMS and RCS campaigns, with a REST API for transactional message sending. | German CPaaS platform (formerly sms77) providing SMS, RCS, WhatsApp and voice APIs with data processed on German-hosted infrastructure. |
| Founded | 2007 | 2003 |
| Ownership | private | private |
| Employees | 10-50 | 2-10 |
| HQ city | Stockholm | Kiel |
| HQ country | Sweden (EU) | Germany (EU) |
What's the differenceseven.io edges ahead on the overall messaging.dev Score (42 vs 28). Rule is private and headquartered in Stockholm, Sweden (EU); seven.io is private and based in Kiel, Germany (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | Rule | seven.io |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | No |
| RCS | Yes | Yes |
| No | Yes | |
| Viber | No | No |
| Facebook Messenger | No | No |
| Telegram | No | No |
| Apple Messages for Business | No | No |
| Voice | No | Yes |
| Yes | No |
What's the differenceThey share 2 channels. Rule additionally offers Email, while seven.io additionally offers WhatsApp, Voice.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | Rule | seven.io |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | No | €0.50 free test credit |
| Docs quality | med | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | Node.js, PHP | PHP, JavaScript, Python, Go, Ruby, .NET, Rust, Kotlin, Elixir, Swift |
| Sandbox / test env | No | Yes |
| API types | REST | REST, SMPP, SMTP |
What's the differenceOn SDKs, Rule adds Node.js; seven.io adds JavaScript, Python, Go, Ruby, .NET, Rust, Kotlin, Elixir, Swift; seven.io offers Sandbox / test env, while Rule does not; on API types, seven.io adds SMPP, SMTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | Rule | seven.io |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | No | No |
| Choose region | No | No |
| GDPR | Yes | Yes |
| ISO 27001 | No | Yes |
| SOC 2 | No | No |
| HIPAA | No | No |
What's the differenceSeven.io offers ISO 27001, while Rule does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | Rule | seven.io |
|---|---|---|
| Retention policy | Privacy policy states Rule only works with partners that process personal data within the EU/EEA (or that maintain an equivalent level of protection), keeps data only as long as a customer relationship exists or it remains relevant, and does not use marketing data older than 3 years. No specific retention period for message content or logs is publicly documented. | 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. |
What's the differenceRule: Privacy policy states Rule only works with partners that process personal data within the EU/EEA (or that maintain an equivalent level of protection), keeps data only as long as a customer relationship exists or it remains relevant, and does not use marketing data older than 3 years. No specific retention period for message content or logs is publicly documented. seven.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.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | Rule | seven.io |
|---|---|---|
| Pricing model | Subscription tiers by contact-list size (free 250-contact plan without SMS, Professional from €595/month for 2,500 contacts, custom Enterprise) plus per-message SMS/RCS fees; a standalone SMS/RCS plan with unlimited contacts costs €100/month plus per-message rates. | Prepaid pay-as-you-go: top up account balance and pay per message sent, with no monthly fee or subscription required for API access. |
| SMS starting price | From €0.04 per SMS (0.40 SEK per SMS in Sweden), on top of the monthly plan | €0.075 per SMS (base rate incl. Germany and most EU countries); non-EU rates vary by country |
| Free developer credit | No | €0.50 free test credit |
What's the differenceRule and seven.io are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | Rule | seven.io |
|---|---|---|
| Countries covered | 0 | 0 |
| Direct operator connections | No | No |
| Published uptime SLA | No published SLA | No published SLA |
What's the differenceRule and seven.io are closely matched on reach & reliability — no material differences in the tracked fields.
Company & Trust
Independent reviews and company profile.
| Field | Rule | seven.io |
|---|---|---|
| G2 rating | 4.5 | 0.0 |
| G2 reviews | 9 | 0 |
| Ownership | private | private |
| Employees | 10-50 | 2-10 |
What's the differenceRule leads on G2 rating (4.5 vs 0 for seven.io); Rule leads on G2 reviews (9 vs 0 for seven.io).
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