
Callr
7.5#5 in transactional sms softwareFrom €599 a monthAndroidiOSWebAPI
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| Fact | Callr | CallScaler |
|---|---|---|
| Company | Callr says it was founded in 2011 and is based in Paris and New York. | The About page describes CallScaler as a small team of engineers and marketers but does not state a headquarters or founding year. |
| Integrations | Callr lists native connectors for Salesforce, HubSpot, Google Analytics, and Google Ads, plus a REST API and webhooks. | The pricing page lists Google and Meta ad integrations, and the product supports connecting Claude, ChatGPT, and other AI assistants through MCP. |
| Product | Callr provides an API-first voice and messaging platform with programmable voice, SMS, call tracking, and conversation AI. | CallScaler combines call tracking, routing, billing, payouts, and call quality tools for lead generation and pay-per-call operations. |
You want what its maker publishes above — check its page for the details.
CallScaler suits lead-generation businesses, agencies, local businesses and pay-per-call networks that need call attribution or routing. Its marketplace plan is for buying or selling calls.