Comparison
Overview
Company snapshot and where each provider is based.
| Field | Apifon | Rule |
|---|---|---|
| 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. | Swedish marketing automation platform (Rule Communication Nordic AB) for email, SMS and RCS campaigns, with a REST API for transactional message sending. |
| Founded | 2014 | 2007 |
| Ownership | private | private |
| Employees | 51-200 | 10-50 |
| HQ city | Thessaloniki | Stockholm |
| HQ country | Greece (EU) | Sweden (EU) |
What's the differenceApifon edges ahead on the overall messaging.dev Score (52 vs 28). Apifon is private and headquartered in Thessaloniki, Greece (EU); Rule is private and based in Stockholm, Sweden (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | Apifon | Rule |
|---|---|---|
| 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 | Rule |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | Free trial bonus on verification | No |
| Docs quality | high | med |
| Documentation | Open ↗ | Open ↗ |
| SDKs | Java, PHP, C#, Python, Node.js | Node.js, PHP |
| Sandbox / test env | No | No |
| API types | REST, SMPP | REST |
What's the differenceOn SDKs, Apifon adds Java, C#, Python; on API types, Apifon adds SMPP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | Apifon | Rule |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | No | No |
| Choose region | No | No |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | No |
| SOC 2 | No | No |
| HIPAA | No | No |
What's the differenceApifon offers ISO 27001, while Rule does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | Apifon | Rule |
|---|---|---|
| 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. | 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. |
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. Rule: 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.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | Apifon | Rule |
|---|---|---|
| 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. | 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. |
| SMS starting price | Not published | From €0.04 per SMS (0.40 SEK per SMS in Sweden), on top of the monthly plan |
| Free developer credit | Free trial bonus on verification | No |
What's the differenceApifon and Rule are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | Apifon | Rule |
|---|---|---|
| Countries covered | 200 | 0 |
| Direct operator connections | No | No |
| Published uptime SLA | No published SLA | No published SLA |
What's the differenceApifon leads on Countries covered (200 vs 0 for Rule).
Company & Trust
Independent reviews and company profile.
| Field | Apifon | Rule |
|---|---|---|
| G2 rating | 4.8 | 4.5 |
| G2 reviews | 3 | 9 |
| Ownership | private | private |
| Employees | 51-200 | 10-50 |
What's the differenceApifon leads on G2 rating (4.8 vs 4.5 for Rule); Rule leads on G2 reviews (9 vs 3 for Apifon).
Still deciding? Read the quickstart guides: