Comparison

Simple Calendar vs Plan Calendar

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

Head to head
About

Simple Calendar

Quickly view your monthly schedule and upcoming events with this easy-to-use calendar app. It offers widget support for at-a-glance access to your day and plans, with all data stored securely on your device. Enjoy a comfortable viewing experience with dark mode support.

Highlights
  • Monthly schedule overview
  • Quick event registration
  • Widget support for daily plans
  • Secure on-device data storage
  • Dark mode compatibility
Features
Read full description

【Features】 ● You can check your schedule for the month at a glance.   You can quickly register your events and check them quickly.   There are no complicated settings before using the calendar. ● Widget support   You can quickly check the date, day of the week, and future plans for the day with the widget. We have added a monthly calendar to the widget. If you change the day of the week in the app, it will be reflected in the widget. ● The security is safe and secure.   The information you add to the calendar is stored only on your device. You can use the calendar with peace of mind because the information is not sent to an external server. ●You can also use it in dark mode, which is easy on the eyes. This app also supports dark mode, so you can use it in dark mode, which is easy on the eyes. [Premium Plan (optional)] An auto-renewable subscription that unlocks all color themes, photo backgrounds, and custom colors. - Monthly: $1.99/month - Yearly: $11.99/year (7-day free trial included) Payment will be charged to your Apple ID account. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. * If you previously purchased "Remove Ads", ads stay hidden without a subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://calendar.heart-relay.com/privacy-policy/

About

Plan Calendar

This app offers a powerful and intuitive way to manage multiple calendars and schedules. Create events quickly, organize them by category with a unique tab system, and enjoy robust features like global search and automatic backups. It prioritizes user privacy with offline support and biometric authentication.

Highlights
  • One-tap schedule creation
  • Revolutionary tab system for organizing calendars
  • Color-coded event creation
  • Lightning-fast global search
  • Automatic backup and restore
  • Complete offline support
  • Biometric authentication
Features
Read full description

Create your plans on a monthly calendar and check your schedule anytime! Packed with powerful features including one-tap event creation, unlimited tabs, color-coded events, event search, backup & restore, dark mode support, and much more. ◆ One-Tap Event Creation Just tap a date on the monthly calendar to instantly add an event! ◆ Unlimited Tabs Split and manage your calendars by category with tabs! Create separate calendars for work, personal life, hobbies, and more! ◆ Color-Coded Events Color-code your events from a rich palette of colors! Recognize their importance and type at a glance! ◆ Swipe to Change Months No more tedious tapping to switch months. Just swipe to move between months intuitively. ◆ Event Search Search and find all your events in an instant! Pinpoint the schedule you need from even the largest amount of data in a flash! ◆ Backup and Restore Switch devices with peace of mind! Your data is backed up automatically and restored instantly on a new device! ◆ Light and Dark Mode Support A beautiful dark mode that's easy on the eyes! ◆ Offline Support No internet connection required! Access it anytime, anywhere! ◆ Notifications Get notified with your own custom message at the time you set! Never miss an important plan! ◆ Biometric Authentication Protect the app with Face ID or fingerprint authentication. Safeguard your privacy so only you can see your data. ◆ CSV Export Easily export all your data as a CSV file! Perfect for backups or analysis with AI. ◆ Tab Notes Add notes freely to each tab! Check important information for every category anytime! ◆ No Login Required No annoying sign-up process needed! Get started right after downloading! ◆ Robust Security Your data is completely private! Nothing is ever sent externally! It's stored safely on your device only! ◆ Support If you have any questions, please feel free to contact us through the in-app inquiry form or at the email address below. info@naokiotsu.com Privacy Policy: https://naokiotsu.com/privacy-policy

Screenshots

Simple Calendar4 screens
Plan Calendar4 screens

Verdict

The call

The clearest difference is rating: Plan Calendar at 5.0 against Simple Calendar's 4.4. Plan Calendar also leads on review sentiment (100% vs 60%) and update cadence (every 6 days vs every 3 weeks). Simple Calendar's advantage is ratings volume (74 vs 22). On price, ads, in-app purchases and monetization model 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 sells 3 in-app purchases, starting at $1.99 per month and Plan Calendar sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Plan Calendar holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 74 and 22 respectively. Written reviews point the same way: 60% of Simple Calendar's written reviews are positive against 100% of Plan Calendar's.

UpkeepUpdate frequency

Simple Calendar ships an update every 3 weeks, Plan Calendar every 6 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Simple Calendar versus Plan Calendar: the parameters behind the verdict, then further details
ParameterSimple CalendarPlan Calendar
PriceFreeFree
Rating4.4 (74 ratings)5.0 (22 ratings) — better
Positive reviews60.0% of reviews100.0% of reviews — better
Number of ratings74 — better22
Update frequencyEvery 3 weeksEvery 6 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size9 MB52 MB
Age rating4+4+
DeveloperHeart Relay Inc.naoki otsu

Customer experience

Simple Calendar

All ratings68 ratings
Positive88.2%
Neutral4.4%
Negative7.4%
Written reviews10 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

Plan Calendar

All ratings22 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Simple Calendar

Subscriptions2
  • Premium Plan (Monthly)$1.991 Month
  • Premium Plan (Yearly)7 Days trial$11.991 Year
One-time1
  • Hide ads$11.99
3 purchases

Plan Calendar

Subscriptions2
  • Premium$1.991 Month
  • Premium$3.991 Year
One-time1
  • Premium (Pay Once)$4.99

Questions

Is Simple Calendar free?
Simple Calendar is free to download, with in-app purchases available.
Is Plan Calendar free?
Plan Calendar is free to download, with in-app purchases available.
Which has better reviews, Simple Calendar or Plan Calendar?
Plan Calendar is rated higher. Simple Calendar averages 4.4 out of 5 from 74 ratings, while Plan Calendar averages 5.0 from 22 ratings.
Do Simple Calendar or Plan Calendar have ads?
Both Simple Calendar and Plan Calendar show ads.
Which is updated more often, Simple Calendar or Plan Calendar?
Simple Calendar ships an update every 3 weeks, and Plan Calendar every 6 days. Most recently, Simple Calendar was updated on October 24, 2026 and Plan Calendar on October 30, 2026.

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