Press kit

Everything you need to write about zerocal. Images may be used in coverage of the app.

zerocal

A calendar for iPhone where you add events by writing or saying one sentence.

App icon (1024 px), six English and six Korean App Store screenshots (1320 × 2868) and this fact sheet as text.

Fact sheet

App	zerocal — always lowercase
Developer	GoodFlow
Platform	iPhone, iOS 17 or later
Release	November 2026, App Store
Price	Free to download. Optional zerocal Pro: $2.99/month, $14.99/year with a 7-day free trial, or $29.99 once
Languages	English, Korean (typing and voice)
Website	zerocal.goodflow.dev
Contact	support@goodflow.dev

Short description

zerocal is an iPhone calendar where you add an event by typing or saying one sentence, like “tomorrow 3pm dentist”.

About zerocal

Adding an event to most calendars takes a dozen taps. zerocal takes one sentence. Type or say “next fri 7pm team dinner” and zerocal reads the date, time and repeat, highlights the words it understood and shows where the new event lands in that day — including anything it overlaps — before you add it.

Sentences are interpreted on the iPhone. There is no account, no server, no ads and no tracking. zerocal shows events from calendars already on the phone (iCloud, Google, Outlook) and can save straight to them. Voice entry tells English and Korean apart on its own.

Entering events by sentence and by voice is free with no limit. zerocal Pro adds repeat recognition inside sentences, lock screen and “Add by Voice” widgets, and more highlighter colors and designs.

Features

One-sentence entry in English and Korean: dates, times, time ranges and repeats
Highlighted words and an overlap preview before the event is added
Voice entry with automatic English/Korean detection
Month view with event titles inside each day and multi-day bars; drag to reschedule
Works with iCloud, Google and Outlook calendars on the iPhone
Home and lock screen widgets, reminders, light and dark mode, .ics export
Follows the iPhone's region: date order, 12/24-hour time and first day of the week

Screenshots

Typing “tomorrow 3pm dentist” with the understood words highlighted — **One sentence**Words it understood are highlighted

Voice entry screen — **Or say it**English and Korean detected automatically

Month view in light mode — **Month view**Titles inside every day

Month view in dark mode — **Dark mode**Same design, after hours

Reviewers

We can provide a promo code for zerocal Pro for reviews and features. Email support@goodflow.dev with your name and publication.