Comparison
Overview
Company snapshot and where each provider is based.
| Field | CM.com | SMSAPI |
|---|---|---|
| What it is | A conversational commerce and customer engagement platform offering business messaging across SMS, RCS, WhatsApp and other channels, plus voice, email and payments, via API and cloud apps. | A Polish business-messaging platform (a brand of LINK Mobility Poland, part of LINK Mobility Group) offering bulk SMS, MMS, VMS voice, RCS and WhatsApp Business messaging via REST API and a web interface. |
| Founded | 1999 | 2007 |
| Ownership | public | public |
| Employees | 500-1,000 | 51-200 |
| HQ city | Breda | Gliwice |
| HQ country | Netherlands (EU) | Poland (EU) |
What's the differenceCM.com edges ahead on the overall messaging.dev Score (58 vs 44). CM.com is public and headquartered in Breda, Netherlands (EU); SMSAPI is public and based in Gliwice, Poland (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | CM.com | SMSAPI |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | Yes |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | Yes | No |
| Facebook Messenger | Yes | No |
| Telegram | Yes | No |
| Apple Messages for Business | Yes | No |
| Voice | Yes | Yes |
| Yes | No |
What's the differenceThey share 4 channels. CM.com additionally offers Viber, Facebook Messenger, Telegram, Apple Messages for Business, Email, while SMSAPI additionally offers MMS.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | CM.com | SMSAPI |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | No | Free test SMS on signup |
| Docs quality | high | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | PHP, Java, Python, .NET, Node.js | PHP, Python, JavaScript, Java, C#, Go, Bash |
| Sandbox / test env | Yes | Yes |
| API types | REST, SMPP | REST, SMTP |
What's the differenceOn SDKs, CM.com adds .NET, Node.js; SMSAPI adds JavaScript, C#, Go, Bash; on API types, CM.com adds SMPP; SMSAPI adds SMTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | CM.com | SMSAPI |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | No | No |
| Choose region | No | No |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | Yes |
| SOC 2 | No | No |
| HIPAA | No | No |
What's the differenceCM.com and SMSAPI are closely matched on data & compliance — no material differences in the tracked fields.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | CM.com | SMSAPI |
|---|---|---|
| Retention policy | Not publicly documented in detail. CM.com states it hosts data in Europe and holds ISO 27001/27017/27018/27701 certifications; message content and metadata retention are governed by its privacy statement and per-customer data processing agreements rather than a single published fixed retention period. | Messages are stored in accordance with applicable law and disclosed only when required by a lawful request; phone numbers are used solely for SMS campaign purposes. No specific retention period is publicly documented. All data is held within the EEA on two redundant data centers in Poland (ATMAN and T-Mobile, over 150 km apart). |
What's the differenceCM.com: Not publicly documented in detail. CM.com states it hosts data in Europe and holds ISO 27001/27017/27018/27701 certifications; message content and metadata retention are governed by its privacy statement and per-customer data processing agreements rather than a single published fixed retention period. SMSAPI: Messages are stored in accordance with applicable law and disclosed only when required by a lawful request; phone numbers are used solely for SMS campaign purposes. No specific retention period is publicly documented. All data is held within the EEA on two redundant data centers in Poland (ATMAN and T-Mobile, over 150 km apart).
Pricing & Credits
Pricing model and the cost of a first message.
| Field | CM.com | SMSAPI |
|---|---|---|
| Pricing model | Pay-per-use (pay-as-you-go) charged per message with one fixed price per destination country, volume discounts above ~50,000 messages/month, and optional subscription tiers. | Pay-as-you-go prepaid credit — pay only for sent messages with no setup fee or contract; minimum top-up around €30. |
| SMS starting price | Not published (per-country pay-per-use pricing requires selecting a region on the pricing page) | From ~€0.04 per SMS (international, varies by destination country) |
| Free developer credit | No | Free test SMS on signup |
What's the differenceCM.com and SMSAPI are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | CM.com | SMSAPI |
|---|---|---|
| Countries covered | 0 | 0 |
| Direct operator connections | Yes | No |
| Published uptime SLA | No published SLA | No published SLA |
What's the differenceCM.com offers Direct operator connections, while SMSAPI does not.
Company & Trust
Independent reviews and company profile.
| Field | CM.com | SMSAPI |
|---|---|---|
| G2 rating | 4.8 | 0.0 |
| G2 reviews | 12 | 0 |
| Ownership | public | public |
| Employees | 500-1,000 | 51-200 |
What's the differenceCM.com leads on G2 rating (4.8 vs 0 for SMSAPI); CM.com leads on G2 reviews (12 vs 0 for SMSAPI).
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