Ultra-low-cost, pay-as-you-go call tracking aimed at pay-per-call marketers and lead-gen agencies that run many tracking numbers at scale.
Choose CallScaler if you run pay-per-call campaigns and want the cheapest possible pool of tracking numbers — at roughly $0.50 per number, nothing else competes. Choose FieldLine if you run one shop and the phone is how work arrives, because a tracking number on its own does not tell you what was said or who was supposed to call back. The per-number saving is real, and it is small next to one job lost to a forgotten callback.
| Criterion | FieldLine | CallScaler |
|---|---|---|
| What it is | Call tracking and lead capture for the trades | Pay-as-you-go tracking numbers |
| Built for | Owner-operated shops, 2–15 techs | Pay-per-call and lead-gen marketers |
| Entry price | $35/mo, public | ~$0.50 per number/mo |
| Call attribution by channel | Included | Included |
| Recording and transcripts | Every tier | Included |
| Automatic lead cards | AI-extracted | AI lead scoring |
| Dynamic number insertion | No | Yes |
| Scheduling, dispatch, invoicing | No | No |
| Setup | Self-serve, ~2 minutes | Self-serve |
Pricing reflects published entry tiers before metered overages. See all five tools side by side.
Priced aggressively at roughly $0.50 per tracking number per month on a metered, pay-as-you-go model with no contract, which makes it very cheap to spin up large pools of numbers for lead-gen campaigns.
Keep the lines and phones you already use. FieldLine's dedicated numbers forward to your existing phones with no porting to get started, so you can trial it next to CallScaler without touching your current setup.
Because you're buying two different things. CallScaler sells cheap tracking numbers for marketers who route calls at scale; FieldLine sells a workspace that answers, records, and turns each call into a lead your crew actually follows up on. For a shop running a few channels, the per-number saving is dwarfed by one job you stop losing to a forgotten callback.
It's a solid call-tracking tool, but it's aimed at pay-per-call and lead-gen marketers, not trades operators. If all you want is the cheapest possible tracking number, it's hard to beat. If you want the call to become a lead card with a next step and a crew view around it, that's the gap FieldLine is built to fill.
No app, no CRM to learn. Founding members lock $28/mo forever.