Comparison
Overview
Company snapshot and where each provider is based.
| Field | SMSAPI | TextBolt |
|---|---|---|
| What it is | 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. | Email-to-SMS gateway that lets US and Canadian businesses send and receive text messages from Gmail, Outlook, or any email client by addressing an email to a phone-number address. |
| Founded | 2007 | 2019 |
| Ownership | public | private |
| Employees | 51-200 | 11-50 |
| HQ city | Gliwice | Mesa |
| HQ country | Poland (EU) | USA |
What's the differenceSMSAPI edges ahead on the overall messaging.dev Score (44 vs 17). SMSAPI is public and headquartered in Gliwice, Poland (EU); TextBolt is private and based in Mesa, USA.
Channels
Which messaging channels each provider can send and receive on.
| Field | SMSAPI | TextBolt |
|---|---|---|
| SMS | Yes | Yes |
| MMS | Yes | No |
| RCS | Yes | No |
| Yes | No | |
| Viber | No | No |
| Facebook Messenger | No | No |
| Telegram | No | No |
| Apple Messages for Business | No | No |
| Voice | Yes | No |
| No | No |
What's the differenceThey share 1 channels. SMSAPI additionally offers MMS, RCS, WhatsApp, Voice.
Developer Experience
How quickly a developer can sign up and send a first message.
| Field | SMSAPI | TextBolt |
|---|---|---|
| Self-service onboarding | Yes | Yes |
| Free developer credit | Free test SMS on signup | No |
| Docs quality | high | low |
| Documentation | Open ↗ | Open ↗ |
| SDKs | PHP, Python, JavaScript, Java, C#, Go, Bash | — |
| Sandbox / test env | Yes | No |
| API types | REST, SMTP | SMTP |
What's the differenceOn SDKs, SMSAPI adds PHP, Python, JavaScript, Java, C#, Go, Bash; SMSAPI offers Sandbox / test env, while TextBolt does not; on API types, SMSAPI adds REST.
Data & Compliance
Data residency options and enterprise compliance certifications.
| Field | SMSAPI | TextBolt |
|---|---|---|
| EU data residency | Yes | No |
| US data residency | No | Yes |
| Choose region | No | No |
| GDPR | Yes | No |
| ISO 27001 | Yes | No |
| SOC 2 | No | No |
| HIPAA | No | No |
What's the differenceSMSAPI offers EU data residency, while TextBolt does not; TextBolt offers US data residency, while SMSAPI does not; SMSAPI offers GDPR, while TextBolt does not; SMSAPI offers ISO 27001, while TextBolt does not.
Data Retention
How long message content and metadata are stored, and whether that is configurable.
| Field | SMSAPI | TextBolt |
|---|---|---|
| Retention policy | 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). | Per the privacy policy, SMS message history is retained for 12 months from the date sent/received, with delivery status tracked via Twilio callbacks; a calendar-event cache is kept 90 days after the event date, and account data is retained while active plus 30 days after deletion. Servers are located in the United States. |
What's the differenceSMSAPI: 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). TextBolt: Per the privacy policy, SMS message history is retained for 12 months from the date sent/received, with delivery status tracked via Twilio callbacks; a calendar-event cache is kept 90 days after the event date, and account data is retained while active plus 30 days after deletion. Servers are located in the United States.
Pricing & Credits
Pricing model and the cost of a first message.
| Field | SMSAPI | TextBolt |
|---|---|---|
| Pricing model | Pay-as-you-go prepaid credit — pay only for sent messages with no setup fee or contract; minimum top-up around €30. | Monthly subscription plans (Basic $29, Standard $49, Professional $99, plus custom Enterprise) that each include a set allowance of SMS-segment credits, with automatic per-segment overage billing. |
| SMS starting price | From ~€0.04 per SMS (international, varies by destination country) | $0.030 per SMS segment (Enterprise 5,000+ credits/mo, US/Canada); $0.058/segment on the $29/mo Basic plan |
| Free developer credit | Free test SMS on signup | No |
What's the differenceSMSAPI and TextBolt are closely matched on pricing & credits — no material differences in the tracked fields.
Reach & Reliability
Global coverage and delivery dependability.
| Field | SMSAPI | TextBolt |
|---|---|---|
| Countries covered | 0 | 2 |
| Direct operator connections | No | No |
| Published uptime SLA | No published SLA | 99.9% (Enterprise plan) |
What's the differenceTextBolt leads on Countries covered (2 vs 0 for SMSAPI).
Company & Trust
Independent reviews and company profile.
| Field | SMSAPI | TextBolt |
|---|---|---|
| G2 rating | 0.0 | 0.0 |
| G2 reviews | 0 | 0 |
| Ownership | public | private |
| Employees | 51-200 | 11-50 |
What's the differenceSMSAPI and TextBolt are closely matched on company & trust — no material differences in the tracked fields.
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