Comparison

Tiny Calendar vs One Calendar

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

Head to head
About

Tiny Calendar

This intuitive calendar app syncs with your existing calendars, offering powerful event creation and management tools. Access your schedule offline, set advanced reminders, and view your events in multiple formats on your iPhone, iPad, and Apple Watch.

Highlights
  • Natural language input for event creation
  • Drag and drop event editing
  • Syncs with Google Calendar and iOS local calendars
  • Supports 9 different calendar views
  • Offline event management
  • Advanced reminder system (push notifications, email)
  • Apple Watch support
Features
Read full description

Tiny Calendar is an intuitive smart calendar works with all your calendars. It inherits the simple and clean look of calendars but makes it more accessible, powerful and reliable on your iPhone and iPad. With Tiny Calendar, you can access and manipulate your google calendar events and tasks more easily, anyway you want. SMART ENOUGH TO CREATE Tiny Calendar has features like nature language input, drag and drop, gestures and other smart methods to predict your intention and help you create and edit your events more easily. SYNC & MANAGE GOOGLE TASKS You don’t need to download another app to manage Google tasks. MULTIPLE WAYS TO VIEW Tiny Calendar supports 9 standard views - Forecast, day, week, month, 4-days, year, mini-month, week agenda and agenda. You can instantly switch views to discover events or find a time you're looking for. REAL-TIME SYNC Tiny Calendar syncs directly with all your Google calendars and also works with iOS local calendar to support events on iCloud, Exchange and other calendars. WORKS OFFLINE You can still create, edit and delete events when you don't have an Internet connection. Tiny Calendar will cache your changes and sync back to your calendar account next time you're online. ADVANCED REMINDER SYSTEM Never forget about a meeting! Tiny Calendar allows you to set reminders via push notification, or email for all events. ACCESS FROM EVERYWHERE Tiny Calendar works with your iPhone, iPad and Apple Watch. You don't need to pay extra money to download multiple copies. Subscription Information: - Tiny Calendar offers a subscription which is $1.49/week & $2.99/month. - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Terms of Use: https://apps.fengge.io/TinyCalendar/TermsConditions.html Privacy Policy: https://apps.fengge.io/TinyCalendar/PrivacyPolicy.html

About

One Calendar

Consolidate all your digital calendars into a single, easy-to-read view. Manage appointments, events, and birthdays from various providers like Google, Outlook, iCloud, and more, all within one application.

Highlights
  • Integrates multiple calendar providers
  • Easy-to-read overview
  • Manage appointments and events
  • View birthdays
  • Cross-platform availability
Features
Read full description

The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, Nextcloud, Synology, GMX, Mailbox.org, ownCloud and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays. OneCalendar is available on all platforms.

Screenshots

Tiny Calendar4 screens
One Calendar4 screens

Verdict

The call

The clearest difference is monetization model: One Calendar at free with in-app purchases against Tiny Calendar's subscription. One Calendar also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price, review sentiment, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Tiny Calendar sells 10 in-app purchases, starting at $1.49 per 7 days and One Calendar sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

One Calendar holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 21K and 21K respectively. Written reviews point the same way: 77% of Tiny Calendar's written reviews are positive against 81% of One Calendar's.

UpkeepUpdate frequency

Tiny Calendar ships an update every 2 months, One Calendar fortnightly. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
Tiny Calendar versus One Calendar: the parameters behind the verdict, then further details
ParameterTiny CalendarOne Calendar
PriceFreeFree
Rating4.6 (21K ratings)4.8 (21K ratings) — better
Positive reviews76.6% of reviews80.7% of reviews — better
Number of ratings21K21K — better
Update frequencyEvery 2 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Mac
Requires iOS14.0 — better15.0
Further details — not scored
Size45 MB89 MB
Age rating4+12+
DeveloperTinyWork AppsCode Spark

Customer experience

Tiny Calendar

All ratings20,601 ratings
Positive91.9%
Neutral4.2%
Negative3.9%
Written reviews667 reviews
Positive76.6%
Neutral7.3%
Negative16.0%

One Calendar

All ratings20,632 ratings
Positive95.4%
Neutral3.2%
Negative1.4%
Written reviews830 reviews
Positive80.7%
Neutral8.6%
Negative10.7%

User reviews

Tiny Calendar

From 21K App Store ratings

What we love

  • 💻 Excellent calendar app
  • 📆 Helpful for organizing schedules
  • 🔗 Syncs well with Google Calendar
  • 🗓 Useful month/week/day views
  • 🎨 Customizable color-coding

Room to improve

  • 🐛 Syncing issues with Google Calendar
  • 🔍 Difficulty finding past events
  • 💰 Expensive subscription model
  • 📢 Intrusive ads in free version
  • 🕰 Time zone issues with event times

One Calendar

From 21K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Clean and simple interface
  • 👍 Integrates multiple calendars
  • 🚀 Syncs across devices
  • 👍 Customizable colors and themes

Room to improve

  • 🐛 Syncing issues
  • 🐛 Bugs and glitches
  • 🔒 Lacks security features
  • 🔋 Drains battery
  • 👎 Restrictive features in free version

Bugs and requests

Tiny Calendar

Reported bugs

3 issues
  • Events disappearing from calendar
  • Crashes when changing calendar settings
  • Duplicate events created unexpectedly

Requested features

4 requests
  • Add to-do list functionality
  • Improve Apple Watch integration
  • Allow more customization options
  • Provide better customer support

One Calendar

Reported bugs

5 issues
  • Sync errors
  • Unresponsive buttons
  • Incorrect time zone display
  • Duplicate events
  • Inability to delete future occurrences of recurring events

Requested features

6 requests
  • Multiple reminders for events
  • Ability to edit recurring events
  • Option to change event calendar after creation
  • Printing support
  • More customization options
Show 1 more
  • Widgets for better visibility

In-app purchases

10 purchases

Tiny Calendar

Subscriptions4
  • Weekly Subscription$1.497 Days
  • Monthly Subscription$2.991 Month
  • Yearly Special Offer$6.991 Year
Show 1 more
  • Yearly Subscription3 Days trial$9.991 Year
One-time6
  • Recurring Events$1.99
  • Invites & Attendees$1.99
  • Multiple Google Accounts$2.99
Show 3 more
  • Upgrade to Premium$9.99
  • Lifetime Premium Special Offer$14.99
  • Lifetime Premium$19.99
1 purchases

One Calendar

One-time1
  • OneCalendar premium$5.99

Questions

Is Tiny Calendar free?
Tiny Calendar is free to download, with in-app purchases available.
Is One Calendar free?
One Calendar is free to download, with in-app purchases available.
Which has better reviews, Tiny Calendar or One Calendar?
One Calendar is rated higher. Tiny Calendar averages 4.6 out of 5 from 21K ratings, while One Calendar averages 4.8 from 21K ratings.
Do Tiny Calendar or One Calendar have ads?
Tiny Calendar shows ads; One Calendar does not.
Which is updated more often, Tiny Calendar or One Calendar?
Tiny Calendar ships an update every 2 months, and One Calendar fortnightly. Most recently, Tiny Calendar was updated on September 23, 2026 and One Calendar on September 24, 2026.

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