Comparison
Overview
Company snapshot and where each provider is based.
| Field | Clickatell | Smstools |
|---|---|---|
| What it is | Cloud messaging and chat-commerce platform offering SMS, WhatsApp, RCS and Apple Messages for Business APIs for businesses. | Belgian business-messaging platform by Xtreme Internet Solutions offering an SMS gateway API, bulk SMS marketing software, WhatsApp Business API, voice messages and email-to-SMS with EU-only hosting. |
| Founded | 2000 | 2004 |
| Ownership | private | private |
| Employees | 250-500 | 1-10 |
| HQ city | Redwood City | Dilsen-Stokkem |
| HQ country | USA | Belgium (EU) |
What's the differenceClickatell edges ahead on the overall messaging.dev Score (61 vs 56). Clickatell is private and headquartered in Redwood City, USA; Smstools is private and based in Dilsen-Stokkem, Belgium (EU).
Channels
Which messaging channels each provider can send and receive on.
| Field | Clickatell | Smstools |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | No |
| RCS | Yes | No |
| Yes | Yes | |
| Viber | No | No |
| Facebook Messenger | No | No |
| Telegram | No | No |
| Apple Messages for Business | Yes | No |
| Voice | No | Yes |
| No | No |
What's the differenceThey share 2 channels. Clickatell additionally offers RCS, Apple Messages for Business, while Smstools additionally offers Voice.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | Clickatell | Smstools |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | No | Free test credit on sign-up |
| Docs quality | high | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | Python, PHP, Java, Node.js, C# | PHP, Node.js, Python, Ruby, PowerShell |
| Sandbox / test env | Yes | Yes |
| API types | REST, SMPP | REST, SMTP |
What's the differenceOn SDKs, Clickatell adds Java, C#; Smstools adds Ruby, PowerShell; on API types, Clickatell adds SMPP; Smstools adds SMTP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | Clickatell | Smstools |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | No | No |
| Choose region | No | No |
| GDPR | Yes | Yes |
| ISO 27001 | Yes | No |
| SOC 2 | Yes | No |
| HIPAA | No | No |
What's the differenceClickatell offers ISO 27001, while Smstools does not; Clickatell offers SOC 2, while Smstools does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | Clickatell | Smstools |
|---|---|---|
| Retention policy | Not publicly documented in detail. Clickatell states it moved its data infrastructure to Amazon Web Services (AWS) in Ireland (EU) in 2018 and directs GDPR/data-protection queries to dataprotection@clickatell.com; specific message content or metadata retention periods are not published. | Not publicly documented in detail. Smstools states all data is stored on servers located in Europe under GDPR-compliant processes, with AES-256 encryption at rest and TLS 1.3 in transit, and a Data Processing Agreement is available on request, but no specific message content/metadata retention periods are published. |
What's the differenceClickatell: Not publicly documented in detail. Clickatell states it moved its data infrastructure to Amazon Web Services (AWS) in Ireland (EU) in 2018 and directs GDPR/data-protection queries to dataprotection@clickatell.com; specific message content or metadata retention periods are not published. Smstools: Not publicly documented in detail. Smstools states all data is stored on servers located in Europe under GDPR-compliant processes, with AES-256 encryption at rest and TLS 1.3 in transit, and a Data Processing Agreement is available on request, but no specific message content/metadata retention periods are published.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | Clickatell | Smstools |
|---|---|---|
| Pricing model | Self-service prepaid pay-as-you-go credits, with quote-based enterprise plans (Connect, Interact, Transact) requiring sales contact. | Pay-as-you-go per message with volume discounts; no subscription, setup fee or monthly minimum, with a personalised rate sheet issued on registration. |
| SMS starting price | $0.008 per SMS to the USA (published rate) | From €0.025 per SMS to the USA (rates vary by destination country and volume) |
| Free developer credit | No | Free test credit on sign-up |
What's the differenceClickatell and Smstools are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | Clickatell | Smstools |
|---|---|---|
| Countries covered | 190 | 200 |
| Direct operator connections | Yes | Yes |
| Published uptime SLA | 99.90%–99.98% uptime (SLA, varies by plan) | 99.99% (uptime SLA) |
What's the differenceSmstools leads on Countries covered (200 vs 190 for Clickatell).
Company & Trust
Independent reviews and company profile.
| Field | Clickatell | Smstools |
|---|---|---|
| G2 rating | 4.3 | 0.0 |
| G2 reviews | 2 | 0 |
| Ownership | private | private |
| Employees | 250-500 | 1-10 |
What's the differenceClickatell leads on G2 rating (4.3 vs 0 for Smstools); Clickatell leads on G2 reviews (2 vs 0 for Smstools).
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