The best alternatives to Countdown: StarByte are Timekit, Eventail, and Historico. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Eventail is the missing calendar widget for your iPhone.
It displays your upcoming events and reminders in a compact, yet readable manner. The app shows a mini-view for three to seven days, nicely fitting in one row. You can see a detailed view of a specific day by tapping on it.
Historico is a clean & minimal iOS application to explore interesting historical facts that happened today. It comes with handy and beautiful Widgets and available in 6 languages (English, German, Spanish, Italian, French, and Hungarian).
Donation Spring is a free, embeddable, highly-configurable, mobile-friendly, and secure donation widget. In minutes, forms can be customized and installed on pages, with no need for technical staff. Use and keep your existing Stripe or Square account.