Comparison
Overview
Company snapshot and where each provider is based.
| Field | GMS | LINK Mobility |
|---|---|---|
| What it is | Enterprise CPaaS and A2P messaging provider offering SMS, WhatsApp, Viber, RCS and email through a single API, plus messaging-hub and SMS-firewall services for mobile network operators. | European communications-platform-as-a-service (CPaaS) provider offering SMS, MMS, RCS, WhatsApp, Viber, Facebook Messenger, Telegram, voice, and email messaging through REST, SMPP, and SOAP APIs. |
| Founded | 2006 | 2001 |
| Ownership | private | public |
| Employees | 500-1,000 | 500-1,000 |
| HQ city | Baar | Oslo |
| HQ country | Switzerland | Norway |
What's the differenceBoth earn a messaging.dev Score of 36. GMS is private and headquartered in Baar, Switzerland; LINK Mobility is public and based in Oslo, Norway.
Channels
Which messaging channels each provider can send and receive on.
| Field | GMS | LINK Mobility |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | Yes |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | Yes | Yes |
| Facebook Messenger | No | Yes |
| Telegram | No | Yes |
| Apple Messages for Business | No | No |
| Voice | No | Yes |
| Yes | Yes |
What's the differenceThey share 5 channels. LINK Mobility additionally offers MMS, Facebook Messenger, Telegram, Voice.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | GMS | LINK Mobility |
|---|---|---|
| Self-service onboarding | No | No |
| Free developer credit | No | No |
| Docs quality | med | med |
| Documentation | Open ↗ | Open ↗ |
| SDKs | iOS (Swift), Android (Kotlin) | — |
| Sandbox / test env | No | No |
| API types | REST | REST, SMPP, SOAP |
What's the differenceOn SDKs, GMS adds iOS (Swift), Android (Kotlin); on API types, LINK Mobility adds SMPP, SOAP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | GMS | LINK Mobility |
|---|---|---|
| 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 differenceGMS and LINK Mobility 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 | GMS | LINK Mobility |
|---|---|---|
| Retention policy | Not publicly documented in detail. GMS's privacy notice states personal data is processed under EU GDPR (Regulation (EU) 2016/679) and held at its Switzerland headquarters (recognized by the European Commission as providing an adequate level of data protection); no specific retention periods for message content or metadata are published. GMS also holds ISO/IEC 27701 (privacy information management) certification. | Not publicly documented in detail. LINK Mobility processes personal data under GDPR as a data processor and states in its GDPR documentation that it operates an integrated ISO 27001 information-security management system (ISMS) with the goal of meeting the requirements of the ISAE 3000 report; message content and metadata retention periods are governed by customer contracts/data-processing agreements rather than a published fixed retention window. |
What's the differenceGMS: Not publicly documented in detail. GMS's privacy notice states personal data is processed under EU GDPR (Regulation (EU) 2016/679) and held at its Switzerland headquarters (recognized by the European Commission as providing an adequate level of data protection); no specific retention periods for message content or metadata are published. GMS also holds ISO/IEC 27701 (privacy information management) certification. LINK Mobility: Not publicly documented in detail. LINK Mobility processes personal data under GDPR as a data processor and states in its GDPR documentation that it operates an integrated ISO 27001 information-security management system (ISMS) with the goal of meeting the requirements of the ISAE 3000 report; message content and metadata retention periods are governed by customer contracts/data-processing agreements rather than a published fixed retention window.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | GMS | LINK Mobility |
|---|---|---|
| Pricing model | Custom enterprise pricing negotiated with sales; no public self-service or per-message price list. | Volume-based, pay-as-you-go enterprise pricing negotiated through sales; per-message rates are not published on the main platform. |
| SMS starting price | Not published | Not published |
| Free developer credit | No | No |
What's the differenceGMS and LINK Mobility are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | GMS | LINK Mobility |
|---|---|---|
| Countries covered | 0 | 0 |
| Direct operator connections | Yes | Yes |
| Published uptime SLA | 99.99% network availability (claimed; no formal SLA published) | No published SLA |
What's the differenceGMS and LINK Mobility are closely matched on reach & reliability — no material differences in the tracked fields.
Company & Trust
Independent reviews and company profile.
| Field | GMS | LINK Mobility |
|---|---|---|
| G2 rating | 0.0 | 0.0 |
| G2 reviews | 0 | 0 |
| Ownership | private | public |
| Employees | 500-1,000 | 500-1,000 |
What's the differenceGMS and LINK Mobility are closely matched on company & trust — no material differences in the tracked fields.
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