Timy might be a bit more popular than Scheduled for iOS. We know about 1 link to it since March 2021 and only 1 link to Scheduled for iOS. 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
I've used the Timy (https://timy.website/) free tier for this in the past. The one feature that was missing though was to schedule messages to be sent at a certain time in the recipient's timezone. Unfortunately it looks like MessageThemLater doesn't support that feature either. - Source: Hacker News / almost 3 years ago
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Smart Slack Reminders - Schedule follow-up questions to any message in Slack 💬
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SKEDit Scheduling App - SKEDit Scheduling App is a rich-featured scheduling application that entitles you to automate your messages by scheduling your WhatsApp messages, SMS, e-mails, post, and set call reminders to experience a healthy or tension-free lifestyle.