Unfortunately, we were taken advantage of again on Appsumo.

This opinion is also confirmed by the low rating on Truspilot:
https://www.trustpilot.com/review/getlate.dev

The developer only sold an early version of the product, and now you have to pay a monthly fee for any additional functionality, which is expensive.

The pricing is terrible; you have to pay for expensive add-ons to get basic functionality.

There are new already two add-ons in the panel:
◾Analytics (Access to analytics dashboard and API endpoints) - $150/mo
◾Inbox (Manage comments and DMs across all platforms) - $150/mo

This isn't product development, it's profit maximization.

I naively bought the lifetime version with the information that it would continue to evolve and I would have new features.

I advise against getting interested in this product, because you never know what awaits you in the future, what new surprises await you.