Comparison

Calndars vs Habit Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calndars

Effortlessly convert dates between over 30 major calendar systems, including Gregorian, Islamic, and Chinese. This utility is designed for global professionals and researchers needing precise cross-cultural date translations. Integrates with widgets and Shortcuts for seamless workflow.

Highlights
  • Convert dates across 30+ calendar systems
  • Supports Gregorian, Islamic, Chinese, Hebrew, Persian, and more
  • Native experience on iPhone, iPad, Mac, Apple Watch
  • Customizable widgets
  • Shortcuts integration
  • AppleScript support on macOS
Read full description

Convert dates across cultures with precision and speed. Calndars is a powerful yet minimal calendar converter designed for global professionals, researchers, and anyone working across time systems. Instantly translate dates between major calendar systems including Gregorian, Hebrew, Islamic, Chinese, Persian, and more. Whether you're coordinating international projects or exploring historical timelines, Calndars delivers accurate results in seconds. Built with modern Apple technologies, the app offers a fast, native experience across iPhone, iPad, Mac, and Apple Watch. Customize your workflow with widgets, favorites, and seamless Shortcuts integration. Designed for efficiency and clarity, Calndars supports over 30 languages and integrates smoothly into your daily tools—without collecting any personal data. A focused utility for a global world. FEATURES - Calndars is the best app to converts dates between the most used calendars in the world. - Select a calendar to set a date, and get the corresponding date in another calendar. - Copy the date to use it in another app. - Add a calendar to the favourites by tapping the star. - Add a calendar to the widgets by tapping the 4 squares icon. - Calendars can be reordered in the list. INTEGRATION - The app supports small, medium and large widgets. - Create a Shortcut in the Apple's Shortcuts App and use the Shortcut everywhere. - Use AppleScript on MacOS for integration between Calndars and other Apps. CALENDARS Calendars to convert between are: - Buddhist - Chinese - Coptic - Ethiopic (Amete Alem) - Ethiopic (Amete Mihret) - Gregorian - Hebrew - indian - Islamic Civil - Islamic Tabular - Islamic Umm Al Qura - Japanese - Persian - Taiwanese - Bangla - Gujarati - Kannada - Malayalam - Marathi - Odia - Tamil - Telugu - Vikram - Dangi - Vietnamese PLATFORM OR DEVICES - iPhone - iPad - Mac - AppleWatch.

About

Habit Tracker

Features
Read full description

Habit brings your calendar, tasks, and habits together in one clean, focused app — so you can plan your day, build better routines, and actually follow through. HABIT TRACKING Build lasting routines with flexible habit tracking. Set daily, weekly, or monthly goals. Track yes/no habits or log numeric values like water intake, exercise minutes, or pages read. View your streaks, completion rates, and a 30-day heatmap to see your progress at a glance. Detailed weekly, monthly, and yearly analytics show exactly where you're thriving and where to improve. TASK MANAGEMENT Capture everything and stay organized. Inbox, Today, Scheduled, Anytime, Someday — every task has its place. Organize tasks into Projects and group projects into Areas of your life (Work, Health, Personal, and more). Add subtasks, set priorities, assign energy levels, estimate time, and schedule reminders. Recurring tasks keep your routines on track automatically. CALENDAR See your full day in one view. Your habits, tasks, and system calendar events appear together on a unified timeline. Connect your iPhone's built-in calendars to see all your events without switching apps. Month, week, and day views let you plan ahead or focus on today. CLOUD SYNC Sign in with Apple, Google, or email to sync your data across devices. Everything — habits, tasks, projects, areas, and all your logs — stays in sync automatically. Works offline first; changes sync when you're back online. BUILT FOR PRIVACY Use Habit without an account. Guest mode keeps all your data on-device only. Sign up whenever you're ready, and your existing data comes with you. MORE FEATURES • Smart reminders — habit and task notifications at exactly the right time • Data export — share your habits and tasks as CSV for backup or analysis • 7 languages — English, Chinese, German, Spanish, French, Italian, Portuguese • Light, Dark, and System themes • Designed for iPhone and iPad Start building the life you want — one habit, one task, one day at a time.

Screenshots

Calndars4 screens
Habit Tracker4 screens

Verdict

The call

The clearest difference is price: Habit Tracker at Free against Calndars's $3.99. Habit Tracker also leads on iOS requirement (15.0 vs 26.0). Calndars's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Habit Tracker is free to download; Calndars costs $3.99 up front. Habit Tracker sells 1 one-off in-app purchase. Calndars asks for nothing beyond the download.

Scorecard3 real differences · 6 level
Calndars versus Habit Tracker: the parameters behind the verdict, then further details
ParameterCalndarsHabit Tracker
Price$3.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 weeks—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size6 MB59 MB
Age rating4+4+
DeveloperGeert JadoulFocus On Timetable Schedule Group

In-app purchases

None

Calndars

No in-app purchases

1 purchases

Habit Tracker

One-time1
  • Habit Prp$4.99

Questions

Is Calndars free?
Calndars costs $3.99, with no in-app purchases.
Is Habit Tracker free?
Habit Tracker is free to download, with in-app purchases available.
Do Calndars or Habit Tracker have ads?
Neither Calndars nor Habit Tracker shows ads.

Other comparisons