Comparison
Overview
Company snapshot and where each provider is based.
| Field | BulkSMS | seven.io |
|---|---|---|
| What it is | Business messaging platform for sending bulk SMS and RCS to mobile networks worldwide via web app, API, and SMPP. | German CPaaS platform (formerly sms77) providing SMS, RCS, WhatsApp and voice APIs with data processed on German-hosted infrastructure. |
| Founded | 2000 | 2003 |
| Ownership | private | private |
| Employees | 11-50 | 2-10 |
| HQ city | Cape Town | Kiel |
| HQ country | South Africa | Germany (EU) |
What's the differenceBulkSMS edges ahead on the overall messaging.dev Score (43 vs 42). BulkSMS is private and headquartered in Cape Town, South Africa; seven.io is private and based in Kiel, Germany (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | BulkSMS | 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 |
| No | No |
What's the differenceThey share 2 channels. seven.io additionally offers WhatsApp, Voice.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | BulkSMS | seven.io |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | 5 free test SMS on signup | €0.50 free test credit |
| Docs quality | med | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | — | PHP, JavaScript, Python, Go, Ruby, .NET, Rust, Kotlin, Elixir, Swift |
| Sandbox / test env | No | Yes |
| API types | REST, HTTP, SMPP, SMTP | REST, SMPP, SMTP |
What's the differenceOn SDKs, seven.io adds PHP, JavaScript, Python, Go, Ruby, .NET, Rust, Kotlin, Elixir, Swift; seven.io offers Sandbox / test env, while BulkSMS does not; on API types, BulkSMS adds HTTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | BulkSMS | 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 BulkSMS does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | BulkSMS | seven.io |
|---|---|---|
| Retention policy | Message data (content and metadata) is retained for 2 years and then automatically deleted from the system. Account/client data is kept for the duration of service use plus about 7 years after termination. EU-related client data is stored in AWS datacentres in Ireland with encryption at rest. | 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 differenceBulkSMS: Message data (content and metadata) is retained for 2 years and then automatically deleted from the system. Account/client data is kept for the duration of service use plus about 7 years after termination. EU-related client data is stored in AWS datacentres in Ireland with encryption at rest. 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 | BulkSMS | seven.io |
|---|---|---|
| Pricing model | Pay-as-you-go prepaid credits: you buy credits and pay per outbound SMS, with per-message rates varying by destination network and country; no monthly, setup, or contract fees. | 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 | Not published (rates shown per destination network via an interactive slider/quote, not a single headline price) | €0.075 per SMS (base rate incl. Germany and most EU countries); non-EU rates vary by country |
| Free developer credit | 5 free test SMS on signup | €0.50 free test credit |
What's the differenceBulkSMS and seven.io are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | BulkSMS | seven.io |
|---|---|---|
| Countries covered | 213 | 0 |
| Direct operator connections | No | No |
| Published uptime SLA | No published SLA | No published SLA |
What's the differenceBulkSMS leads on Countries covered (213 vs 0 for seven.io).
Company & Trust
Independent reviews and company profile.
| Field | BulkSMS | seven.io |
|---|---|---|
| G2 rating | 4.6 | 0.0 |
| G2 reviews | 266 | 0 |
| Ownership | private | private |
| Employees | 11-50 | 2-10 |
What's the differenceBulkSMS leads on G2 rating (4.6 vs 0 for seven.io); BulkSMS leads on G2 reviews (266 vs 0 for seven.io).
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