iCalendar vs OnDeck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iCalendar
This app helps you manage your busy schedule with a user-friendly interface. Easily track daily, weekly, monthly, and yearly views, and color-code your events for better organization. It syncs with popular accounts and offers productivity tools for efficient event management.
- Daily, weekly, monthly, yearly views
- Customizable event color-coding
- Syncs with iCloud, Google, Exchange, Outlook, Yahoo!
- Task manager with iOS Reminders sync
- Drag and drop event rescheduling
- Custom repeating events
- Time zone support
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** A MUST-HAVE CALENDAR APP FOR EVERY IPHONE, IPAD, AND IPOD ** iCalendar is the ultimate calendar for your iPhone, iPad and iPod Touch focusing on your productivity. It’s seamless, highly usable interface allows you to enter events quickly and helps you keep track of your busy schedule. It integrates with your iCloud, Google, Exchange, Outlook, or Yahoo! account to provide you with the most convenient calendaring experience. EASILY TRACK YOUR SCHEDULE - View your daily, weekly, monthly, and yearly schedule. - Custom color-code your events. Use predefined colors, or make up your own colors. - iCalendar implements quickest way on the market to navigate between dates - Fast and powerful search: Search events by title, location, and notes. NEW IN VERSION 4.0 - Task Manager: Manage your tasks within your calendar in a fun and easy manner and sync with iOS Reminders. Available as in-app purchase for USD 0.99. FULL OF PRODUCTIVITY TOOLS - Drag and drop an event to update its timing. - Copy and paste events. - Create custom repeating events (e.g. repeat on the third Friday every month, and many more). - Add custom alerts/reminders for events and snooze alerts - Access your event details quickly by tapping on the event. - Customize the visible time period (e.g. from 9:00 AM – 5:00 PM) to help you focus on most important events. EVEN MORE - Time Zone Support: View and create your events in your preferred time zone and never get confused when you travel. - Complete print functionality. Print daily, weekly, monthly, and yearly views. - Export any view (day, week, month, year) as a PDF file. - Use built-in maps to set the location of your events. - Dial into a conference call with one touch right from iCalendar. Add phone numbers from your contacts to events with the ability to use pause and wait, which is ideal for conference calls. - Set location of an event as the address or phone number of one of your contacts. - Access all your events directly from the Month view - no need to go to each individual day to review full list of events. - Use the app icon badge to indicate either the number of upcoming events or the day of the month. - Google Calendar sync: sync all of your calendars, create and edit Google Calendar events, and use Google Calendar custom reminders (SMS, email and/or alert). - Add, edit and delete calendars right from iCalendar. - Support of portrait and landscape to match your orientation preference. - iCalendar is a universal app. Download once and use across all your devices. - For more details: http://www.symfonies.com/icalendar/ iCalendar offers access to interesting calendars from Calendar Store as an optional in-app purchase. You may subscribe to your holidays calendar (national/religious) or subscribe to interesting calendars (e.g. local/global sports events, stocks, weather, and many others). With an optional in-app purchase yearly subscription, you get full and ongoing access to the Calendar Store including (live) updates in your calendar. A subscription always starts with a one-month free trial, so you can try before you buy. One year subscriptions for the Calendar Store costs $1.99. Payment will be charged to your iTunes Account at confirmation of purchase and after the 1 month free trial. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current 1 year period. You can turn off auto-renew at any time from your iTunes account settings. Cancellation of the current active subscription period is not allowed. Our terms of service and privacy policy are found at http://www.symfonies.com/terms-of-service/ and http://www.symfonies.com/privacy-policy/ respectively. If you have a question, need help or would like to request a feature, please do not hesitate to contact us. We respond to EVERY email we receive: support@symfonies.com
OnDeck
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THE FOUR-CARD SYSTEM FOR GETTING THINGS DONE OnDeck strips away the complexity of traditional to-do apps and gives you just four cards to manage your life: Today, Next, Someday, and the Win Pile. Today — What needs your attention right now Next — What's coming up soon Someday — Ideas and tasks for the future Win Pile — Everything you've accomplished Tap a card to focus. Swipe between cards as your priorities shift. Drag tasks to reorder them. Track progress with four status levels: Not Started, In Progress, Delegated, and Complete. It's task management that works the way your brain does. Stop drowning in endless task lists. Start finishing what matters. SYNCS WITH APPLE REMINDERS Your tasks aren't locked inside OnDeck. Everything syncs through Apple Reminders, which means automatic iCloud backup and sync across all your devices. It also works with alternative providers like Google if you've configured them in Settings. Your data stays yours, and it's still accessible if you stop using the app. THE WIN PILE Completed tasks don't just disappear. They move to your Win Pile — a record of everything you've accomplished. Look back on productive days, track your progress, and remind yourself how much you're actually getting done. Tasks are organised by completion date so you can see your productive history. HOME SCREEN WIDGETS Add OnDeck to your home screen with widgets in multiple sizes. Choose which card to display — Today, Next, Someday, or the Win Pile. Tap any task in the widget to jump directly into the app. Widgets update automatically throughout the day. CUSTOMISE YOUR EXPERIENCE Make OnDeck truly yours with personalisation options: - Choose between System, Light, or Dark appearance - Select colour schemes: Pastel, Greyscale, or Sticky Note - Pick your typography: Sans Serif, Serif, or Rounded DESIGNED TO STAY OUT OF YOUR WAY No complicated projects. No tags. No priorities within priorities. Just four cards, your tasks, and a clear view of what to do next. OnDeck automatically reorganises overdue tasks and updates due dates so you stay on track without manual effort.
Screenshots
Verdict
The clearest difference is price: OnDeck at Free against iCalendar's $2.99. OnDeck also leads on update cadence (every 9 days vs every 3 months). iCalendar's advantage is chart position (#75 vs unranked) and device support (4 vs 2). On ads and in-app purchases 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
OnDeck is free to download; iCalendar costs $2.99 up front. iCalendar sells 10 in-app purchases, starting at $1.99 per year and OnDeck sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
iCalendar ships an update every 3 months, OnDeck every 9 days. The most recent releases landed on September 25, 2026 and September 15, 2026 respectively.
| Parameter | iCalendar | OnDeck |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.7 (5.3K ratings) — better | — |
| Positive reviews | 72.3% of reviews | — |
| Number of ratings | 5.3K — better | — |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #75 — better | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 37 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Symfonies, Inc. | JOHN ROBERT PEART |
Bugs and requests
iCalendar
Reported bugs
4 issues- Events disappearing or not syncing properly
- Inability to edit or update recurring events
- Incorrect time and location information
- Crashes or freezes when performing certain actions
Requested features
5 requests- Add ability to attach files to events
- Improve widget functionality and visibility
- Introduce family/group calendar sharing
- Expand color palette and theming options
- Add yearly view and better month-to-month navigation
OnDeck
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iCalendar
- Calendar Store1 Month trial$1.991 Year
- Religious holidays$0.99
- Week Numbers$0.99
- Moon Phases calendar$0.99
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- Holidays United States$0.99
- Calendars - Pro Football USA 2014-2015 edition$0.99
- Calendars - Pro Baseball USA 2015 edition$0.99
- iOS Reminders$0.99
- Calendars - Pro American Football Men United States 2015-2016 edition$0.99
- Weather calendars$1.99
OnDeck
- Little tip$0.99
- Big tip$2.99
- Very big tip$4.99









