Comparison
Overview
Company snapshot and where each provider is based.
| Field | Attentive | BulkSMS |
|---|---|---|
| What it is | AI-powered SMS, MMS, RCS, email, and push marketing platform for consumer brands, with REST and GraphQL APIs for subscriber management and event-triggered messaging rather than direct message sending. | Business messaging platform for sending bulk SMS and RCS to mobile networks worldwide via web app, API, and SMPP. |
| Founded | 2016 | 2000 |
| Ownership | private | private |
| Employees | 1,000-1,500 | 11-50 |
| HQ city | New York | Cape Town |
| HQ country | USA | South Africa |
What's the differenceBulkSMS edges ahead on the overall messaging.dev Score (43 vs 40). Attentive is private and headquartered in New York, USA; BulkSMS is private and based in Cape Town, South Africa.
Channels
Which messaging channels each provider can send and receive on.
| Field | Attentive | BulkSMS |
|---|---|---|
| SMS | Yes | Yes |
| MMS | Yes | No |
| RCS | Yes | Yes |
| No | No | |
| Viber | No | No |
| Facebook Messenger | No | No |
| Telegram | No | No |
| Apple Messages for Business | No | No |
| Voice | No | No |
| Yes | No |
What's the differenceThey share 2 channels. Attentive additionally offers MMS, Email.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | Attentive | BulkSMS |
|---|---|---|
| Self-service onboarding | No | Yes |
| Free developer credit | No | 5 free test SMS on signup |
| Docs quality | med | med |
| Documentation | Open ↗ | Open ↗ |
| SDKs | iOS (Swift), Android (Kotlin), React Native | — |
| Sandbox / test env | Yes | No |
| API types | REST, GraphQL | REST, HTTP, SMPP, SMTP |
What's the differenceBulkSMS offers Self-service onboarding, while Attentive does not; on SDKs, Attentive adds iOS (Swift), Android (Kotlin), React Native; Attentive offers Sandbox / test env, while BulkSMS does not; on API types, Attentive adds GraphQL; BulkSMS adds HTTP, SMPP, SMTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | Attentive | BulkSMS |
|---|---|---|
| EU data residency | No | Yes |
| US data residency | Yes | No |
| Choose region | No | No |
| GDPR | Yes | Yes |
| ISO 27001 | No | No |
| SOC 2 | Yes | No |
| HIPAA | No | No |
What's the differenceBulkSMS offers EU data residency, while Attentive does not; Attentive offers US data residency, while BulkSMS does not; Attentive offers SOC 2, while BulkSMS does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | Attentive | BulkSMS |
|---|---|---|
| Retention policy | No fixed retention periods are published; the privacy policy states personal information is retained "for as long as necessary to provide our Service or as needed to comply with applicable legal obligations." EU/UK/Swiss consumer data is transferred to and processed in the United States under the EU-U.S., UK Extension, and Swiss-U.S. Data Privacy Frameworks. | 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. |
What's the differenceAttentive: No fixed retention periods are published; the privacy policy states personal information is retained "for as long as necessary to provide our Service or as needed to comply with applicable legal obligations." EU/UK/Swiss consumer data is transferred to and processed in the United States under the EU-U.S., UK Extension, and Swiss-U.S. Data Privacy Frameworks. BulkSMS: 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.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | Attentive | BulkSMS |
|---|---|---|
| Pricing model | Custom-quoted, usage-based subscription priced on message volume, subscriber list size, channels, and premium AI add-ons; no self-serve signup or published per-message rates. | 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. |
| SMS starting price | Not published | Not published (rates shown per destination network via an interactive slider/quote, not a single headline price) |
| Free developer credit | No | 5 free test SMS on signup |
What's the differenceAttentive and BulkSMS are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | Attentive | BulkSMS |
|---|---|---|
| Countries covered | 20 | 213 |
| Direct operator connections | No | No |
| Published uptime SLA | No published SLA | No published SLA |
What's the differenceBulkSMS leads on Countries covered (213 vs 20 for Attentive).
Company & Trust
Independent reviews and company profile.
| Field | Attentive | BulkSMS |
|---|---|---|
| G2 rating | 4.5 | 4.6 |
| G2 reviews | 1,483 | 266 |
| Ownership | private | private |
| Employees | 1,000-1,500 | 11-50 |
What's the differenceBulkSMS leads on G2 rating (4.6 vs 4.5 for Attentive); Attentive leads on G2 reviews (1,483 vs 266 for BulkSMS).
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