Comparison
Overview
Company snapshot and where each provider is based.
| Field | GatewayAPI | SendPulse |
|---|---|---|
| What it is | Danish SMS gateway and messaging platform by ONLINECITY.IO offering SMS, RCS and email APIs with pay-as-you-go pricing and EU data hosting. | Multi-channel marketing and messaging platform offering email, SMS, web push, and chatbots (WhatsApp, Telegram, Viber, Facebook Messenger, Instagram) through a unified interface and REST API. |
| Founded | 1999 | 2015 |
| Ownership | private | private |
| Employees | 11-50 | 51-200 |
| HQ city | Odense | New York |
| HQ country | Denmark (EU) | USA |
What's the differenceSendPulse edges ahead on the overall messaging.dev Score (63 vs 54). GatewayAPI is private and headquartered in Odense, Denmark (EU); SendPulse is private and based in New York, USA.
Channels
Which messaging channels each provider can send and receive on.
| Field | GatewayAPI | SendPulse |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | No |
| RCS | Yes | No |
| No | Yes | |
| Viber | No | Yes |
| Facebook Messenger | No | Yes |
| Telegram | No | Yes |
| Apple Messages for Business | No | No |
| Voice | No | No |
| Yes | Yes |
What's the differenceThey share 2 channels. GatewayAPI additionally offers RCS, while SendPulse additionally offers WhatsApp, Viber, Facebook Messenger, Telegram.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | GatewayAPI | SendPulse |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | Test credits on request | Free plan (15,000 emails/mo) + 10 test SMS |
| Docs quality | med | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | — | PHP, Python, Ruby, Java, Node.js, C# |
| Sandbox / test env | No | No |
| API types | REST, SMPP, Email-to-SMS | REST, SMTP |
What's the differenceOn SDKs, SendPulse adds PHP, Python, Ruby, Java, Node.js, C#; on API types, GatewayAPI adds SMPP, Email-to-SMS; SendPulse adds SMTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | GatewayAPI | SendPulse |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | No | Yes |
| Choose region | Yes | No |
| GDPR | Yes | Yes |
| ISO 27001 | No | No |
| SOC 2 | No | No |
| HIPAA | No | No |
What's the differenceSendPulse offers US data residency, while GatewayAPI does not; GatewayAPI offers Choose region, while SendPulse does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | GatewayAPI | SendPulse |
|---|---|---|
| Retention policy | Message content, sender and recipient are stored in the traffic log for 30 days, after which records are anonymized (message content and full sender deleted, last half of the recipient number removed). An optional "secret" message class skips storage of content, sender and recipient entirely. | Personal data is retained for as long as needed to provide the services or to comply with legal obligations, resolve disputes, and enforce agreements. Servers are located in the United States and Germany with redundant, backed-up storage; under GDPR users can access, export, or request deletion of their data, and all account data is permanently deleted when an account is terminated. |
What's the differenceGatewayAPI: Message content, sender and recipient are stored in the traffic log for 30 days, after which records are anonymized (message content and full sender deleted, last half of the recipient number removed). An optional "secret" message class skips storage of content, sender and recipient entirely. SendPulse: Personal data is retained for as long as needed to provide the services or to comply with legal obligations, resolve disputes, and enforce agreements. Servers are located in the United States and Germany with redundant, backed-up storage; under GDPR users can access, export, or request deletion of their data, and all account data is permanently deleted when an account is terminated.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | GatewayAPI | SendPulse |
|---|---|---|
| Pricing model | Pay-as-you-go per-message pricing with prepaid credit; no monthly subscriptions or fees (except short-code countries), with negotiated discounts for high volumes. | Pay-as-you-go for SMS (priced per message by destination country); free-forever plan plus paid monthly subscription tiers for email and other channels. |
| SMS starting price | From €0.0061 per SMS (standard class, cheapest destination on the public price list; e.g. €0.0401 to Denmark) | €0.01 per SMS (e.g. Colombia, Turkey) |
| Free developer credit | Test credits on request | Free plan (15,000 emails/mo) + 10 test SMS |
What's the differenceGatewayAPI and SendPulse are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | GatewayAPI | SendPulse |
|---|---|---|
| Countries covered | 200 | 200 |
| Direct operator connections | Yes | No |
| Published uptime SLA | No published SLA (99.99%+ historical uptime claimed) | No published SLA |
What's the differenceGatewayAPI offers Direct operator connections, while SendPulse does not.
Company & Trust
Independent reviews and company profile.
| Field | GatewayAPI | SendPulse |
|---|---|---|
| G2 rating | 4.9 | 4.6 |
| G2 reviews | 7 | 714 |
| Ownership | private | private |
| Employees | 11-50 | 51-200 |
What's the differenceGatewayAPI leads on G2 rating (4.9 vs 4.6 for SendPulse); SendPulse leads on G2 reviews (714 vs 7 for GatewayAPI).
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