Comparison
Overview
Company snapshot and where each provider is based.
| Field | SmsManager | Telnyx |
|---|---|---|
| What it is | Czech bulk-messaging platform for sending SMS, WhatsApp, Viber and RCS messages from a web application or a single JSON API, with direct connections to local mobile operators. | Telnyx is a licensed telecom carrier offering a CPaaS platform with APIs for SMS, MMS, RCS, WhatsApp, voice, and email over its own private global IP network. |
| Founded | 2011 | 2009 |
| Ownership | private | private |
| Employees | 1-5 | 201-500 |
| HQ city | Prague | Chicago |
| HQ country | Czech Republic (EU) | USA |
What's the differenceTelnyx edges ahead on the overall messaging.dev Score (78 vs 51). SmsManager is private and headquartered in Prague, Czech Republic (EU); Telnyx is private and based in Chicago, USA.
Channels
Which messaging channels each provider can send and receive on.
| Field | SmsManager | Telnyx |
|---|---|---|
| SMS | Yes | Yes |
| MMS | No | Yes |
| RCS | Yes | Yes |
| Yes | Yes | |
| Viber | Yes | No |
| Facebook Messenger | No | No |
| Telegram | No | No |
| Apple Messages for Business | Yes | No |
| Voice | No | Yes |
| No | Yes |
What's the differenceThey share 3 channels. SmsManager additionally offers Viber, Apple Messages for Business, while Telnyx additionally offers MMS, Voice, Email.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | SmsManager | Telnyx |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | Yes | No |
| Docs quality | high | high |
| Documentation | Open ↗ | Open ↗ |
| SDKs | JavaScript/TypeScript, PHP | Node.js, Python, Ruby, Go, Java, .NET, PHP |
| Sandbox / test env | Yes | No |
| API types | REST | REST, SMPP |
What's the differenceOn SDKs, SmsManager adds JavaScript/TypeScript; Telnyx adds Node.js, Python, Ruby, Go, Java, .NET; SmsManager offers Sandbox / test env, while Telnyx does not; on API types, Telnyx adds SMPP.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | SmsManager | Telnyx |
|---|---|---|
| EU data residency | Yes | Yes |
| US data residency | No | Yes |
| Choose region | No | Yes |
| GDPR | Yes | Yes |
| ISO 27001 | No | Yes |
| SOC 2 | No | Yes |
| HIPAA | No | Yes |
What's the differenceTelnyx offers US data residency, while SmsManager does not; Telnyx offers Choose region, while SmsManager does not; Telnyx offers ISO 27001, while SmsManager does not; Telnyx offers SOC 2, while SmsManager does not; Telnyx offers HIPAA, while SmsManager does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | SmsManager | Telnyx |
|---|---|---|
| Retention policy | Under the published GDPR data processing agreement, message records (phone number and message text) older than 12 months are automatically deleted by default unless otherwise agreed; encrypted backups are kept 30 days and system logs 180 days. After contract termination, personal data is deleted or exported (CSV) free of charge within 30 days. | Telnyx follows a "Privacy by Design", minimal data-retention approach with customer-controlled retention policies, so message content and metadata retention can be configured by the customer. Its security-practices documentation states security logs are retained for 90 days; specific default retention periods for message content are not publicly documented in detail. |
What's the differenceSmsManager: Under the published GDPR data processing agreement, message records (phone number and message text) older than 12 months are automatically deleted by default unless otherwise agreed; encrypted backups are kept 30 days and system logs 180 days. After contract termination, personal data is deleted or exported (CSV) free of charge within 30 days. Telnyx: Telnyx follows a "Privacy by Design", minimal data-retention approach with customer-controlled retention policies, so message content and metadata retention can be configured by the customer. Its security-practices documentation states security logs are retained for 90 days; specific default retention periods for message content are not publicly documented in detail.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | SmsManager | Telnyx |
|---|---|---|
| Pricing model | Prepaid credit pay-as-you-go: free account, non-expiring credit topped up by card or bank transfer, charged only per message sent, with volume-tiered discounts and optional subscription add-on services. | Pay-as-you-go per message billed per message part, with volume discounts and custom contracts for high-volume customers. |
| SMS starting price | €0.0356 per SMS to the Czech Republic (5,001-10,000 message volume tier; promotional rate €0.032), other destinations priced per country | $0.004 per outbound SMS message part (US, plus carrier fees) |
| Free developer credit | Yes | No |
What's the differenceSmsManager and Telnyx are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | SmsManager | Telnyx |
|---|---|---|
| Countries covered | 175 | 130 |
| Direct operator connections | Yes | Yes |
| Published uptime SLA | No published SLA (individual SLA agreements available) | 99.99% (SLA) |
What's the differenceSmsManager leads on Countries covered (175 vs 130 for Telnyx).
Company & Trust
Independent reviews and company profile.
| Field | SmsManager | Telnyx |
|---|---|---|
| G2 rating | 0.0 | 4.7 |
| G2 reviews | 0 | 525 |
| Ownership | private | private |
| Employees | 1-5 | 201-500 |
What's the differenceTelnyx leads on G2 rating (4.7 vs 0 for SmsManager); Telnyx leads on G2 reviews (525 vs 0 for SmsManager).
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