I would start with Checkout Champ if the landers are not built yet. I would use CartFlows or FunnelKit if the store already runs on WooCommerce and the checkout should stay on that site.
1. Checkout Champ
Best Konnektive alternative for funnel pages and a price you can read first
Starts at USD 300/mo + 1%.
I would start with Checkout Champ if the landers are not built yet. It says it is built on this CRM, and the Growth plan lists a monthly fee plus a percentage of sales. Subscription renewals are processed through the same gateway that approved the initial transaction. See Konnektive's routing help.
Read the full Checkout Champ review
2. CartFlows
Best Konnektive alternative for a WooCommerce shop you already host
Offers a free plan, or starts at USD 99/yr.
If your store already runs on WooCommerce, the checkout remains on your site. One reviewer said Konnektive became easier to use once they got used to the interface. See that Capterra review.
Read the full CartFlows review
3. FunnelKit
Best Konnektive alternative for WooCommerce with follow-up in the same plugin
Offers a free plan, or starts at USD 99.50/yr.
Automated follow-up lives in the same plugin as the WooCommerce checkout. The store handles both.
Read the full FunnelKit review