Day Counter — Since & Until

What it is

Day Counter answers one question at a glance: how many days has it been — or how many are left? Create trackers for anything: days since you quit a habit, days until a trip, anniversaries, streaks, deadlines. Each tracker gets a sentiment-aware look, home-screen widgets, and optional milestone notifications that celebrate the numbers that matter — all stored on your device.

Who it’s for

Anyone who wants the days to be countable — habit trackers, anniversaries, countdowns to a trip, streaks, or deadlines — on iPhone and iPad.

Features

• Count up and count down

  Days since and days until, side by side — track habits, trips, anniversaries, streaks, and deadlines.

• Home-screen widgets

  Multiple widget sizes keep the numbers that matter always visible, without opening the app.

• Milestone notifications

  Celebrate milestones with a tone that matches the moment — set it and forget it.

• Siri & Shortcuts

  Create and check trackers with App Intents — no need to open the app to ask how long it's been.

• Designed for iPhone and iPad

  A sidebar layout makes Day Counter feel natural on larger screens.

• Private by design

  Everything stored on your device — no account, no ads, no tracking.

Tech

• Swift
• SwiftUI
• WidgetKit
• App Intents (Siri & Shortcuts)
• SwiftData
• iPhone & iPad
• iOS 17+