Comparison

Simple Calendar Daily Planner vs Availability Sync

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

Head to head
About

Simple Calendar Daily Planner

This app offers a streamlined calendar experience with a focus on simplicity and ease of use. It allows for easy sharing of schedules, extensive customization options like font size and color-coding, and secure passcode locking. It's ideal for users seeking a functional, minimalist organizer.

Highlights
  • Schedule sharing
  • 15 Widgets
  • Adjustable font size
  • Color-coded calendars
  • Passcode lock
  • Sync with other apps
Features
Read full description

Simple Calendar is a calendar app that works directly with your iCloud, Google and Microsoft calendars, with clear monthly, weekly and daily views, color coding, widgets and repeating events. Our design philosophy is all about simplicity and ease of use. Simple Calendar comes with various customization options, including font size — use the style that suits you best. In this calendar app, you can use the sharing features of iCloud Calendar and Google Calendar, making it easy to share schedules with family, partners, and colleagues. It's perfect for those looking for a minimalist calendar app focused on functionality instead of extra (and sometimes unnecessary) features — for work, family, shifts, school and travel. [List of Functions] · Share schedules with iCloud and Google Calendar · 15 Home Screen widgets · Next event on your Lock Screen · Font size adjustment (10 options) · Weekly (7 days · 5 days · 3 days) display · Daily display · Color coding for different calendars · Add notes, URLs, and maps · Sync with other scheduling apps · Event templates, history and search · Add an event to multiple days at once · Daily summary notifications · Restore deleted events from the Trash · 50 theme colors and a changeable app icon · Set your favorite photo as the wallpaper · Background colors for dates · White, black, or colored text for events · Set any day of the week as a day off · Change the start day of the week · Display week numbers · Lock with passcode [Function Details] ■ iOS Calendar This app uses the built-in iOS calendar system. Events made with this app will be synchronized with other scheduling apps and the iOS standard Calendar app. Your events are stored in your own calendar account (iCloud, Google, etc.), never on our servers. If you switch phones, simply sign in again and everything comes back — no account registration needed. Events sync to iPad automatically and can be viewed on a Mac or PC via iCloud.com. ■ Adjust Font Size You can choose from five font sizes of extra-small, small, medium, large, and extra-large. You can also choose light or bold text for better readability. ■ Monthly, Weekly, and Daily Calendar With one tap at the bottom of the screen, you can switch between monthly, weekly, and daily display. Switch the weekly calendar to a 7-, 5- or 3-day display to find what is right for you. A list of the day's events can be shown under the monthly calendar. ■ Color Coding You can create separate calendars according to different schedules, such as work and home. Then, you can manage them clearly by color coding them. For each calendar, you can choose everything from its color to white or black text. ■ Secure Passcode Lock You can securely lock the app with a passcode, Face ID or Touch ID if you don't want anyone to view your calendars. ■ Notification Settings You can set up notifications for scheduled events at the event time, as well as 5 min, 15 min, or more prior to the event, so you don't miss important plans! Get a summary of today's events in the morning or tomorrow's events the night before. Over 21 million downloads, 4.6 user rating (as of August 2026). [Note to Users] Since this calendar app uses the standard function of the iOS calendar, events older than one month may no longer appear on your device with the default settings. If you want to keep past events, please follow the procedure below after installing the app. 1. Open the iOS Settings app. 2. Tap "Calendar". 3. Tap "Sync". 4. Select "All Events". For details, see "Help/FAQ" in the app. [Help / Inquiries] Please visit "Help/FAQ" from the settings screen of the app. If this doesn't help, please contact us through "Contact Us" from the settings screen. We can respond much faster this way than to app reviews. [Terms of Service] https://komorebi-studio.com/tos_en.html [Privacy Policy] https://komorebi-studio.com/policyredirect.html

About

Availability Sync

Easily share your free time slots for meetings and appointments. This app integrates with your existing calendars and allows for customized sharing messages and professional calendar invites. Streamline your scheduling process and avoid back-and-forth communication.

Highlights
  • Instant availability sharing
  • Calendar integration (iOS, Google, Outlook)
  • Customizable sharing messages
  • Professional calendar invitations
  • Multiple time slot selection
  • Time zone management
Features
Read full description

Availability Sync: Share Your Availability Instantly Transform how you coordinate schedules and share your availability. Whether you're planning meetings, managing appointments, or coordinating with others, share your free time slots in seconds. FEATURES: Smart Sharing - Share available time slots instantly via text or calendar invites - Customize sharing messages for different recipients - Generate professional calendar invitations - Create personalized event titles and descriptions - Share across any messaging platform - Select multiple time slots in one go Calendar Integration - Sync with iOS, Google, and Outlook calendars - View all your calendars in one unified interface - Real-time updates as your schedule changes - Instant conflict detection Availability Management - Select and share multiple time slots at once - Customize work week and weekend schedules - Set preferred meeting durations - Define working hours for different days - Manage time zones effortlessly Time Slot Controls - Choose between 30-minute to 2-hour slots - Select entire days or specific times - Quick bulk selection options - Filter by morning, afternoon, or evening - View calendar conflicts instantly Professional Customization - Personalize event titles and descriptions - Create custom sharing messages - Choose between text or calendar format - Adjust time zone displays for recipients - Flexible date and time formats Perfect for: - Professionals sharing meeting availability - Teams coordinating across time zones - Freelancers managing client appointments - Anyone tired of back-and-forth scheduling emails Additional Features: - Support for light and dark modes - Multiple visual themes - Quick event creation - Privacy-focused design - Regular updates and improvements Download Availability Sync today and transform how you share your availability. No more endless email chains or scheduling confusion - just simple, efficient calendar sharing. Take control of your schedule sharing with Availability Sync.

Screenshots

Simple Calendar Daily Planner4 screens
Availability Sync4 screens

Verdict

The call

The clearest difference is in-app purchases: Availability Sync at none against Simple Calendar Daily Planner's 3. Availability Sync also leads on ads (none vs shown) and update cadence (weekly vs every 6 weeks). Simple Calendar Daily Planner's advantage is ratings volume (6.4K vs 5) and iOS requirement (15.0 vs 17.5). On price, rating, review sentiment 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

Both are free to download. Simple Calendar Daily Planner sells 3 in-app purchases, starting at $2.99 per month. Availability Sync asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Simple Calendar Daily Planner holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Simple Calendar Daily Planner has 6.4K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 61% of Simple Calendar Daily Planner's written reviews are positive against 67% of Availability Sync's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Simple Calendar Daily Planner ships an update every 6 weeks, Availability Sync weekly. The most recent releases landed on September 22, 2026 and June 2, 2026 respectively.

Scorecard6 real differences · 4 level
Simple Calendar Daily Planner versus Availability Sync: the parameters behind the verdict, then further details
ParameterSimple Calendar Daily PlannerAvailability Sync
PriceFreeFree
Rating4.6 (6.4K ratings) — better4.4 (5 ratings)
Positive reviews60.6% of reviews66.7% of reviews — better
Number of ratings6.4K — better5
Update frequencyEvery 6 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.5
Further details — not scored
Size133 MB10 MB
Age rating4+4+
DeveloperKomorebi Inc.David Fuerst

Customer experience

Simple Calendar Daily Planner

All ratings6,362 ratings
Positive90.4%
Neutral4.9%
Negative4.6%
Written reviews340 reviews
Positive60.6%
Neutral6.8%
Negative32.6%

Availability Sync

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

Simple Calendar Daily Planner

Reported bugs

5 issues
  • Calendar glitching, events disappearing or duplicating
  • Language randomly changing to Spanish
  • Widget not displaying events correctly
  • Syncing issues between iPhone and iPad
  • Appointment times changing unexpectedly

Requested features

5 requests
  • Add ability to invite/share calendars
  • Include more reminder options (multiple, further in advance)
  • Expand customization options (fonts, colors, layouts)
  • Integrate weather information
  • Add option to set day start/end times

Availability Sync

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Simple Calendar Daily Planner

Subscriptions2
  • Premium (Monthly)$2.991 Month
  • Premium (Annual)1 Month trial$19.991 Year
One-time1
  • Remove Ads$8.99
None

Availability Sync

No in-app purchases

Questions

Is Simple Calendar Daily Planner free?
Simple Calendar Daily Planner is free to download, with in-app purchases available.
Is Availability Sync free?
Availability Sync is free to download, with no in-app purchases.
Which has better reviews, Simple Calendar Daily Planner or Availability Sync?
Simple Calendar Daily Planner is rated higher. Simple Calendar Daily Planner averages 4.6 out of 5 from 6.4K ratings, while Availability Sync averages 4.4 from 5 ratings.
Do Simple Calendar Daily Planner or Availability Sync have ads?
Simple Calendar Daily Planner shows ads; Availability Sync does not.
Which is updated more often, Simple Calendar Daily Planner or Availability Sync?
Simple Calendar Daily Planner ships an update every 6 weeks, and Availability Sync weekly. Most recently, Simple Calendar Daily Planner was updated on September 22, 2026 and Availability Sync on June 2, 2026.

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