Based on our record, Scheduled for iOS seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
And actually https://scheduledapp.com/ it's so easy to do. Source: almost 3 years ago
Schedule Share - Create and share read-only calendars
Slater by Convergely - Schedule your Slack messages now, post them later
MyTime Scheduler - The online scheduler connecting small businesses to clients
Timy - Best way to send scheduled messages in Slack
Staffjoy V2 - Text message based employee scheduling app
FLINK - Enriches communication across generations