How the 2026 rankings were scored
Four scoring dimensions, each weighted equally at 25%. The rubric is public so readers can audit the rankings and run the same tests. Vendors who think a release moved their score can email the editor. The same rubric applies to every platform, including our top pick, CallScaler.
The four scoring dimensions
Call routing and RTB (25%)
How flexibly the platform routes a call and whether it supports real-time bidding. We test weighted routing, concurrency caps per buyer, duplicate rules, day-parting, geo rules, and the depth of any live-auction controls. Pay-per-call advertising depends on getting the right call to the right buyer fast, so this dimension carries real weight. The background on pay-per-call advertising is a useful primer for newcomers.
Buyer and payout management (25%)
How well the platform manages buyers and syncs payouts. We test buyer accounts, per-buyer caps and schedules, offer management, and whether earnings flow back into reporting automatically. The goal is to remove spreadsheets from the weekly routine.
Per-call economics (25%)
The cost to sit in the middle of the call. We compare per-number and per-minute rates plus any platform fee, then model the cost at a realistic volume. Because pay per call is a spread business, a lower number rate compounds into real margin at scale.
Reporting and filtering (25%)
The data you need to bill a buyer and protect quality. We test reporting on duration, unique versus duplicate, connected versus abandoned, and source, plus filters that let you bill only on qualified calls. Transcription and recording support count here too.
What was tested, plainly
For each platform we set up an account, provisioned tracking numbers, built a routing rule to a test buyer, and ran real calls through the system. We checked how quickly a call attributed to its source, how cleanly the payout synced, and what the run cost at a modeled volume of a few thousand calls a month.
Time-to-first-call measurements
Time from sign-up to a first routed and attributed call, with no prior practice. CallScaler ran about 11 minutes. The other platforms ranged from roughly 20 minutes to a guided demo before access, which is noted in each review.
Economics modeling
We modeled the monthly cost at 300 active numbers and a few thousand connected minutes. The per-number rate drove most of the gap: CallScaler's $0.50 rate produced the lowest modeled cost in the group, which is reflected in its economics score.
What was not scored
We did not score marketplace size on its own, brand recognition, or the long tail of integrations. Those matter to some buyers but encode a different decision than the one this site is built around. We also did not score vendor-supplied case studies.
Refresh cadence
The rankings refresh when a platform ships a release that moves a score or changes its pricing. Prices are checked at publication. If you spot a stale figure, email the editor and we will verify and update.
Sources: Wikipedia: pay-per-call advertising · IAB advertising standards