Comparison
Overview
Company snapshot and where each provider is based.
| Field | Apifon | GatewayAPI |
|---|---|---|
| What it is | Greek business-messaging platform for SMS, Viber, WhatsApp, RCS, Messenger and email campaigns, with a web platform plus REST and SMPP APIs. | 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. |
| Founded | 2014 | 1999 |
| Ownership | private | private |
| Employees | 51-200 | 11-50 |
| HQ city | Thessaloniki | Odense |
| HQ country | Greece (EU) | Denmark (EU) |
What's the differenceGatewayAPI edges ahead on the overall messaging.dev Score (54 vs 52). Apifon is private and headquartered in Thessaloniki, Greece (EU); GatewayAPI is private and based in Odense, Denmark (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | Apifon | GatewayAPI |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | No |
| RCS | Yes | Yes |
| Yes | No | |
| Viber | Yes | No |
| Facebook Messenger | Yes | No |
| Telegram | No | No |
| Apple Messages for Business | No | No |
| Voice | No | No |
| Yes | Yes |
What's the differenceThey share 3 channels. Apifon additionally offers WhatsApp, Viber, Facebook Messenger.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | Apifon | GatewayAPI |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | Free trial bonus on verification | Test credits on request |
| Docs quality | high | med |
| Documentation | Open ↗ | Open ↗ |
| SDKs | Java, PHP, C#, Python, Node.js | — |
| Sandbox / test env | No | No |
| API types | REST, SMPP | REST, SMPP, Email-to-SMS |
What's the differenceOn SDKs, Apifon adds Java, PHP, C#, Python, Node.js; on API types, GatewayAPI adds Email-to-SMS.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | Apifon | GatewayAPI |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | No | No |
| Choose region | No | Yes |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | No |
| SOC 2 | No | No |
| HIPAA | No | No |
What's the differenceGatewayAPI offers Choose region, while Apifon does not; Apifon offers ISO 27001, while GatewayAPI does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | Apifon | GatewayAPI |
|---|---|---|
| Retention policy | Message logs (telephone numbers, message body, sender ID, timestamps) are retained for a default period of 24 months; other personal data is kept for as long as a contractual relationship exists. All personal data is stated to be hosted on servers located within the European Union. | 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. |
What's the differenceApifon: Message logs (telephone numbers, message body, sender ID, timestamps) are retained for a default period of 24 months; other personal data is kept for as long as a contractual relationship exists. All personal data is stated to be hosted on servers located within the European Union. GatewayAPI: 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.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | Apifon | GatewayAPI |
|---|---|---|
| Pricing model | Prepaid pay-as-you-go: customers top up a euro balance by card, PayPal, or bank transfer and messages are charged against it; per-message rates are quoted per account, not published. | 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. |
| SMS starting price | Not published | From €0.0061 per SMS (standard class, cheapest destination on the public price list; e.g. €0.0401 to Denmark) |
| Free developer credit | Free trial bonus on verification | Test credits on request |
What's the differenceApifon and GatewayAPI are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | Apifon | GatewayAPI |
|---|---|---|
| Countries covered | 200 | 200 |
| Direct operator connections | No | Yes |
| Published uptime SLA | No published SLA | No published SLA (99.99%+ historical uptime claimed) |
What's the differenceGatewayAPI offers Direct operator connections, while Apifon does not.
Company & Trust
Independent reviews and company profile.
| Field | Apifon | GatewayAPI |
|---|---|---|
| G2 rating | 4.8 | 4.9 |
| G2 reviews | 3 | 7 |
| Ownership | private | private |
| Employees | 51-200 | 11-50 |
What's the differenceGatewayAPI leads on G2 rating (4.9 vs 4.8 for Apifon); GatewayAPI leads on G2 reviews (7 vs 3 for Apifon).
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