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SPECIFICTION
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Callr vs CallScaler

Callr

callr.com

CallScaler

callscaler.com

Side by side

FigureCallrCallScaler
Price from€599/mo$45/mo
Free plan—Yes
Free trialYesYes
Open source——
WebYesYes
iOSYes—
AndroidYes—
APIYesYes
Plans published25
Spec score · Call Tracking Software9.1 (#1)8.9 (#3)
Call trackingTracking features include dynamic number insertion, source attribution, call detail records, unique callers, geographic origin and ring or talk time.It assigns tracking numbers to campaigns and sources, supports dynamic number insertion, keyword attribution and call-flow routing.
CompanyCallr 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.
Company sizeLinkedIn lists Callr as having 11–50 employees.Crunchbase places CallScaler in the 11–50 employee range.
Data retentionCall detail records are retained for three years for billing, dispute resolution and legal compliance.CallScaler says recordings, transcripts and related data are retained for five years on every plan at no extra cost.
HeadquartersParis and New YorkCrunchbase lists headquarters in Denver, Colorado, United States.
IntegrationsCallr 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.
LicenceThe published API reference identifies the Callr API licence as proprietary.The service software, design and documentation are owned by CallScaler, and copying, modification, distribution, sale or reverse engineering is prohibited.
ProductCallr 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.
Rating on GetApp4.6 out of 5 from 11 reviews.4.5 out of 5 from 2 reviews
SecurityCallr states that HTTPS, SIP TLS and SRTP encryption are included across plans.White Label provides a custom domain with automatic SSL, branded with the customer's logo, colors, and favicon.
SupportCallr describes 24/7 support as part of its service and lists premium customer support for Enterprise.Support is provided through in-app tickets and email; the contact page says typical basic-question replies take 10 to 20 minutes.
What it doesCallr provides programmable voice, SMS, call tracking, conversation intelligence and AI voice agents on its own carrier network.CallScaler is a cloud platform for call tracking, analytics, lead management, routing, recording, AI analysis, dynamic number insertion, forms, SMS, pay-per-call operations and advertising integrations.

Plans

Callr

  • Professional€599 a month
  • EnterprisePriced on request

Callr pricing →

CallScaler

  • MarketplaceFree
  • Pro$45 a month
  • Call Tracking$65 a month
  • Agency$130 a month
  • Pay Per Call$400 a month

CallScaler pricing →

In their own words

Callr

Callr has no write-up on Specifiction yet; its figures are above.

Visit callr.com

CallScaler

CallScaler combines call tracking, routing, billing, payouts, and call quality tools for lead-generation and pay-per-call operations. It attributes calls to publishers, campaigns, ads, and keywords through dedicated numbers and dynamic number insertion. Routing options include call flows, real-time bidding, IVR menus, geographic routing, and voicemail. For call review, it provides recordings, transcripts, AI summaries, lead scoring, and keyword tracking.

The Pay Per Call plan includes buyer and publisher management, billing, invoicing, real-time bidding, and a branded public marketplace. The Marketplace plan is free for buying or selling calls. Call Tracking is listed at $65 a month and Pay Per Call at $400 a month, both billed annually with usage charges; the pricing note says paid plans start at $45/mo, and a 7-day trial is available. CallScaler runs on web and API platforms. Google and Meta ad integrations are listed, and AI assistants can connect through MCP. Phone numbers are currently offered only for the US and Canada.

Visit callscaler.com