Both tools can schedule a week of posts. They differ in what surrounds the scheduler.
Features around scheduling
Publer offers a free plan, RSS automations on its Professional plan, and analytics, approvals, and API access on its Business plan.
Zedgad keeps the feature set narrower: compose, schedule, publish, and log, with a WordPress plugin, webhook, and API available on every plan.
Pricing model
Publer's paid plans are priced with a calculator based on accounts and users, so check its official page for your setup.
Zedgad is a flat $9 to $99 per month by number of projects, with unlimited posts. X publishing is an add-on.
Which one to choose
Choose Publer if you want a free plan, built-in analytics, or approvals in the same tool.
Choose zedgad if you want API and webhook publishing without moving to a higher tier, or a predictable flat price per project.
Key takeaway
Publer is a broader workspace; zedgad gives every plan the automation tools.