Comparison

Simple D vs Calendaris

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

Head to head
About

Simple D

Features
Read full description

Hello, I'm happy to introduce a lightweight and easy-to-use D-Day app. * Countdowns Set the time for your D-Day and easily check the remaining or elapsed time. The time is calculated and displayed in multiple formats (months, weeks, days, hours, etc.). * Anniversaries Set anniversaries and check dates related to your D-Day. You can also use it like a date calculator. * Memos You can create memos related to your D-Days. The date and time are recorded with your memos. It is recommended when you want to keep tracking on your schedules, or keep the records of them. * Notifications Schedule notifications for your D-Days. You can schedule multiple reminders and write whatever message you'd like. You'll receive push notifications at your set times. Thank you. Developer Contact: kim.beeefriends@gmail.com

About

Calendaris

Features
Read full description

Feeling a bit overwhelmed? Tasks to manage, appointments to remember, budgets to track, and people to connect with... Sometimes, it just feels like too much. Calendaris was born for moments just like this. It's your reliable personal assistant, bringing all the scattered pieces of your lifeβ€”your tasks, schedule, budget, and membersβ€”into one simple, organized place. Best of all, Calendaris values your focus. We've designed it to be a clean, quiet space for you to concentrate, completely free of distracting ads or visual clutter. --- ### **How Calendaris Changes Your Life** **1. Forget Nothing (Task Management)** Those "I'll do it later" tasks that slip through the cracks? Hand them all over to Calendaris. * Set a 'Priority' for important items and quickly log any 'Costs' associated with them. * Organize everything with 'Tags' (like `Work`, `Family`, `Personal Project`) or link tasks to 'Members' (like `Team`) to keep your lists neat and tidy. **2. Your Schedule & Spending at a Glance (Calendar)** * Open the calendar to see all your appointments and tasks for the month. * Press and hold any date for 1 second to 'Quick Add' a new event. * Curious about your spending? Tap the dollar ($) icon to switch to 'Cost View' and see a daily total of your expenses. **3. Smart Budgeting** * Set your total monthly budget in the 'Settings' tab. * Your 'Overview' dashboard will show your remaining budget and usage rate in real-time. Calendaris is here to cheer on your financial goals. **4. Check In Without Opening the App (Home Screen Widgets)** Too busy to even open the app? We get it. * Use our widgets to see your monthly calendar, critical D-Days, budget status, and a summary of today's tasks right from your home screen. --- ### **Your Data is Precious** **No Complicated Signup Needed.** Calendaris doesn't ask for an email or password. The moment you open the app, your device is registered securely and automatically. **Kept Safe (Data Encryption)** All your sensitive information (like task names, notes, and profiles) is **encrypted** when it's stored in the server database, ensuring it's protected. This means even server administrators cannot see your personal content. **Don't Worry About Switching Phones (Auto-Sync)** Your data syncs automatically across all your devices. If you change or lose your phone, just reinstall the app, and all your information will be magically restored, just as you left it. --- Start clearing your mind with Calendaris today. Your days are about to feel much lighter and more organized. Calendaris grows with your support. If you find the service helpful, please consider exploring the in-app subscription. Your small contribution is a huge help, allowing Calendaris to remain ad-free and empowering us to deliver even better features. [Terms of Use] https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ [Privacy Policy] https://nemois.com/posts/taskis_privacy_en

Screenshots

Simple D4 screens
Calendaris4 screens

Verdict

The call

The clearest difference is ads: Calendaris at none against Simple D's shown. Simple D's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Simple D sells 1 one-off in-app purchase and Calendaris sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Simple D ships an update every 3 weeks, Calendaris every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences Β· 3 level
Simple D versus Calendaris: the parameters behind the verdict, then further details
ParameterSimple DCalendaris
PriceFreeFree
Update frequencyEvery 3 weeks β€” betterEvery 2 months
AdsYesNo β€” better
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 β€” better18.0
Further details β€” not scored
Size48 MB25 MB
Age rating4+4+
DeveloperbeeefriendsJEONGCHEOL KIM

In-app purchases

1 purchases

Simple D

One-time1
  • Remove ads$6.99
1 purchases

Calendaris

Subscriptions1
  • Calendaris Pro$0.991 Month

Questions

Is Simple D free?
Simple D is free to download, with in-app purchases available.
Is Calendaris free?
Calendaris is free to download, with in-app purchases available.
Do Simple D or Calendaris have ads?
Simple D shows ads; Calendaris does not.
Which is updated more often, Simple D or Calendaris?
Simple D ships an update every 3 weeks, and Calendaris every 2 months. Most recently, Simple D was updated on November 3, 2026 and Calendaris on October 30, 2026.

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