Comparison
Overview
Company snapshot and where each provider is based.
| Field | IDM interactive digital media | SMSAPI |
|---|---|---|
| What it is | German CPaaS provider offering SMS, voice, and multichannel A2P messaging APIs with infrastructure hosted exclusively in German data centers. | 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 | 2003 | 2007 |
| Ownership | private | public |
| Employees | 11-50 | 51-200 |
| HQ city | Lübeck | Gliwice |
| HQ country | Germany (EU) | Poland (EU) |
What's the differenceIDM interactive digital media edges ahead on the overall messaging.dev Score (47 vs 44). IDM interactive digital media is private and headquartered in Lübeck, Germany (EU); SMSAPI is public and based in Gliwice, Poland (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | IDM interactive digital media | SMSAPI |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | Yes |
| RCS | No | Yes |
| Yes | Yes | |
| Viber | No | No |
| Facebook Messenger | Yes | No |
| Telegram | Yes | No |
| Apple Messages for Business | No | No |
| Voice | Yes | Yes |
| No | No |
What's the differenceThey share 3 channels. IDM interactive digital media additionally offers Facebook Messenger, Telegram, while SMSAPI additionally offers MMS, RCS.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | IDM interactive digital media | SMSAPI |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | No | Free test SMS on signup |
| Docs quality | med | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | — | PHP, Python, JavaScript, Java, C#, Go, Bash |
| Sandbox / test env | No | Yes |
| API types | REST, SMPP | REST, SMTP |
What's the differenceOn SDKs, SMSAPI adds PHP, Python, JavaScript, Java, C#, Go, Bash; SMSAPI offers Sandbox / test env, while IDM interactive digital media does not; on API types, IDM interactive digital media adds SMPP; SMSAPI adds SMTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | IDM interactive digital media | 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 differenceIDM interactive digital media 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 | IDM interactive digital media | SMSAPI |
|---|---|---|
| Retention policy | Message-content retention is not publicly documented in detail. The privacy policy states server logs are kept for a maximum of 30 days, telecommunications traffic data is deleted per statutory retention periods, and contract/billing data is retained up to 10 years under German law (§147 AO, §257 HGB). All processing occurs in German (or EEA) data centers. | 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 differenceIDM interactive digital media: Message-content retention is not publicly documented in detail. The privacy policy states server logs are kept for a maximum of 30 days, telecommunications traffic data is deleted per statutory retention periods, and contract/billing data is retained up to 10 years under German law (§147 AO, §257 HGB). All processing occurs in German (or EEA) data centers. 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 | IDM interactive digital media | SMSAPI |
|---|---|---|
| Pricing model | Volume-based pay-per-message pricing, primarily via custom enterprise quotes (no public price list). | 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 | From ~€0.04 per SMS (international, varies by destination country) |
| Free developer credit | No | Free test SMS on signup |
What's the differenceIDM interactive digital media and SMSAPI are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | IDM interactive digital media | SMSAPI |
|---|---|---|
| Countries covered | 180 | 0 |
| Direct operator connections | Yes | No |
| Published uptime SLA | 99.99% (SLA) | No published SLA |
What's the differenceIDM interactive digital media leads on Countries covered (180 vs 0 for SMSAPI); IDM interactive digital media offers Direct operator connections, while SMSAPI does not.
Company & Trust
Independent reviews and company profile.
| Field | IDM interactive digital media | SMSAPI |
|---|---|---|
| G2 rating | 0.0 | 0.0 |
| G2 reviews | 0 | 0 |
| Ownership | private | public |
| Employees | 11-50 | 51-200 |
What's the differenceIDM interactive digital media and SMSAPI are closely matched on company & trust — no material differences in the tracked fields.
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