| Price from | €599/mo | — |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · Transactional SMS Software | 9.1 (#3) | 8.4 (#19) |
| Audience | Callr describes its platform as infrastructure for businesses embedding voice and messaging in products and for teams using calls in customer experience, sales, or marketing. | The company identifies enterprises, mobile operators, aggregators, developers, and SMB teams as customer groups. |
| Coverage | Callr says its platform covers more than 220 countries. | The site says its services cover 190+ countries and connect to 500+ operators. |
| Founded | 2011 | The company’s timeline says SMSala launched in the Middle East in 2010. |
| Headquarters | Paris and New York | Dubai, United Arab Emirates |
| Integrations | Callr lists native connectors for Salesforce, HubSpot, Google Analytics, and Google Ads, plus a REST API and webhooks. | SMSala says its REST APIs, SDKs, and webhooks can connect messaging services with websites, mobile apps, CRMs, and business applications. |
| Product | Callr provides an API-first voice and messaging platform with programmable voice, SMS, call tracking, and conversation AI. | SMSala describes itself as a global CPaaS for SMS, WhatsApp, RCS, voice, email, authentication, and network APIs. |
| Security | Callr states that HTTPS, SIP TLS and SRTP encryption are included across plans. | The SMS API page lists encrypted API connections, API keys, IP whitelisting, and TLS 1.3. |
| Support | Callr describes 24/7 support as part of its service and lists premium customer support for Enterprise. | The company says its Dubai Network Operations Center operates 24/7 and enterprise customers can receive dedicated technical account management. |
