WhatConverts is a lead tracking tool. It gives you tracking numbers, swaps them on your website per visitor with dynamic number insertion, and records calls. On its Plus plan and up it also tracks form fills and chats, and reports leads back to the campaign and keyword. You can mark a lead qualified and give it a dollar value, and on the Elite plan rules can do that for you. The single-account plans are listed at $30 to $160 a month plus usage. It is a good tool for a marketer who wants every lead from every channel in one list with a source on it.
Plaibook only looks at calls and texts, and it goes deeper on them. Each source gets a tracking number, so the call carries its source. Then Plaibook transcribes the call, grades it against your script, and matches the caller to FieldRoutes so it can see whether the lead became a subscription. The value on the lead is not something you enter. It is what actually posted in the FSM. That is the difference between attribution to a lead and attribution to closed revenue, and it is the number a pest control owner actually wants when deciding whether to keep paying for a source.
Where they overlap
Static tracking numbers, one per source, and call recording. If your WhatConverts account is five numbers pointed at Google, Yelp, the truck, the mailer and the website, Plaibook does that job and adds scoring and the FieldRoutes match. You would not need both for calls.
Where Plaibook does not go
Forms and chats. Plaibook does not track web forms, does not watch a chat widget, and does not do e-commerce transactions. Form leads can reach Plaibook's text follow-up through GoHighLevel, but the form itself is not attributed by Plaibook.
Number pools. WhatConverts includes dynamic number insertion on every plan, which swaps a different number in for each website visitor so a call can be tied to the search keyword that brought them. Plaibook does not do this. If keyword-level attribution drives your ad spend decisions, that is a reason to keep a tracking tool.
When to keep both
Keep WhatConverts if forms and chats are a meaningful share of your leads, or if your agency runs keyword-level reporting off the number pool. Add Plaibook for the calls: scoring, close rate by source from FieldRoutes, save rate, missed-call text-back and follow-up texting. The two do not conflict. WhatConverts numbers forward to your phone system, and Plaibook pulls recordings from that phone system, so every call still gets scored. What does not carry over is WhatConverts' keyword label, because WhatConverts is not an integration Plaibook ingests today. CallRail and CallTrackingMetrics are; see the CallRail comparison if that matters to you.
Drop WhatConverts if it is only tracking calls with static numbers. Plaibook covers that and the money it was costing goes toward seats.