Comparison

SquareRootCalculator vs Simple Calendar Daily Planner

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

Head to head
About

SquareRootCalculator

This calculator simplifies square root and fraction calculations. It handles complex rationalizations with high precision, preventing digit overflow for long integers. Easily perform basic arithmetic operations with square roots.

Highlights
  • Square root calculation
  • Fraction calculation
  • Four rule calculations
  • Infinite long integer support
  • Rationalization simplification
Features
Read full description

It is a calculator for calculating the square root. It can also be used to calculate fractions. You can easily enter and execute the four rule calculations of square root and square root. Since the infinite multiple-long integer is used I the internal operation, there is no worry that the digits will overflow. Especially easy to carry out rationalization which is said to be difficult to calculate.

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

Screenshots

SquareRootCalculator3 screens
Simple Calendar Daily Planner4 screens

Verdict

The call

The clearest difference is review sentiment: Simple Calendar Daily Planner at 61% against SquareRootCalculator's 23%. Simple Calendar Daily Planner also leads on update cadence (every 6 weeks vs every 14 months) and ratings volume (6.4K vs 34). SquareRootCalculator's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 15.0). On price, 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

Both are free to download. Simple Calendar Daily Planner sells 3 in-app purchases, starting at $2.99 per month. SquareRootCalculator 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 4.3. That said, the two scores are not equally well evidenced: Simple Calendar Daily Planner has 6.4K ratings behind it against 34, so its average is the more settled of the two. Written reviews point the same way: 23% of SquareRootCalculator's written reviews are positive against 61% of Simple Calendar Daily Planner's.

UpkeepUpdate frequency

SquareRootCalculator ships an update every 14 months, Simple Calendar Daily Planner every 6 weeks. The most recent releases landed on September 12, 2026 and September 22, 2026 respectively.

Scorecard7 real differences · 3 level
SquareRootCalculator versus Simple Calendar Daily Planner: the parameters behind the verdict, then further details
ParameterSquareRootCalculatorSimple Calendar Daily Planner
PriceFreeFree
Rating4.3 (34 ratings)4.6 (6.4K ratings) — better
Positive reviews23.1% of reviews60.6% of reviews — better
Number of ratings346.4K — better
Update frequencyEvery 14 monthsEvery 6 weeks — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size5 MB133 MB
Age rating4+4+
DeveloperJirou FukudaKomorebi Inc.

Customer experience

SquareRootCalculator

All ratings34 ratings
Positive79.4%
Neutral5.9%
Negative14.7%
Written reviews13 reviews
Positive23.1%
Neutral23.1%
Negative53.8%

Simple Calendar Daily Planner

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

Bugs and requests

SquareRootCalculator

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

SquareRootCalculator

No 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

Questions

Is SquareRootCalculator free?
SquareRootCalculator is free to download, with no in-app purchases.
Is Simple Calendar Daily Planner free?
Simple Calendar Daily Planner is free to download, with in-app purchases available.
Which has better reviews, SquareRootCalculator or Simple Calendar Daily Planner?
Simple Calendar Daily Planner is rated higher. SquareRootCalculator averages 4.3 out of 5 from 34 ratings, while Simple Calendar Daily Planner averages 4.6 from 6.4K ratings.
Do SquareRootCalculator or Simple Calendar Daily Planner have ads?
Both SquareRootCalculator and Simple Calendar Daily Planner show ads.
Which is updated more often, SquareRootCalculator or Simple Calendar Daily Planner?
SquareRootCalculator ships an update every 14 months, and Simple Calendar Daily Planner every 6 weeks. Most recently, SquareRootCalculator was updated on September 12, 2026 and Simple Calendar Daily Planner on September 22, 2026.

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