Comparison

DuoCal vs Super Simple Diary

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

Head to head
About

DuoCal

Compare monthly calendars side-by-side from different years or months. Organize events with customizable labels and share your schedule with others. Syncs with iOS and Google calendars.

Highlights
  • Side-by-side calendar view
  • Multiple calendar creation
  • Calendar sharing via Dropbox
  • iOS and Google Calendar sync
  • Customizable labels with colors and sizes
  • Label templates
  • Memos separate from dates
Read full description

DuoCal ~Compare Calendars Side by Side~ DuoCal allows you to line up calendars of the same month of different years or any other months you like top-and-bottom and compare them. ●DuoCal Features ・Allows you to create calendars for different purposes and easily switch between them. ・Allows you to display 2 calendars top-and-bottom, making it easy to compare monthly calendars for different months and years or various monthly calendars in different years, for example. ・Allows you to easily share your calendars with multiple people. (Sharing calendars require both the inviter and invitee to have Dropbox accounts. DuoCal account registration is not required.) ・Allows you to sync iOS calendars. You can also sync your Google calendar by syncing your Google Calendar with your iOS calendar. ・You may attach as many labels to your calendar as you want for different purposes. You can choose between 34 colors and 4 sizes as well as 2 types, text only or image+text. ・You can also create label templates. By creating label templates you frequently use, you can customize your calendar to make it easier for you to use. ・You may also attach labels to parts other than the dates on your calendar or create short memos separate from the dates. ●Usage example ・You can use it like a 5 year calendar or 10 year calendar. By using the labels as diaries with photos, you can easily relive your memories in the current month 1 year or 5 years ago. ・As you can create multiple calendars separated by various purposes such as private, work, family, and more, you can make a calendar that is easy to view. Additionally, by lining them up top-and-bottom, you can plan your work schedule while comparing it with your private schedule. ・Use the share function to easily share the information with your family or acquaintances. You can use it like a portable fridge calendar. ・By recording reservations or revenue on labels, you can compare reservation status for the same month between different years and between different months. ・You can also record events with clients in the previous year on your calendar and display this year’s calendar on top and last year's calendar at the bottom to establish the year’s plan to fit your client’s needs while checking last year’s circumstances. ・You can use the share function to easily sync the information between multiple devices. For example, you can use your tablet at home and your smartphone when outside to manage your schedule. ●DuoCal Convenient Features (Calendar Management) ・Allows you to combine calendars. You can easily combine calendars that you created separately into a single calendar. (Calendar View) ・You can use pinch-to-zoom to enlarge the calendar. If your phone screen is small, making it difficult to view the labels, you can intuitively enlarge it. ・Tap the View Mode button to switch to View Mode. In View Mode, you can zoom in on the data by tapping and holding on specific dates. This feature is useful for quickly checking all the details. (Calendar Sharing) ・You can share your calendar with multiple people by using Dropbox. All you need to do is send an Invite email to the person you want to share it with. No DuoCal account registration is required. ・Send an email to yourself to sync your calendar on multiple devices such as your smartphone and tablet. (Other Features) ・You can also backup your calendar to iCloud Drive. ●Use add-ons to add functionality ・Purchase add-ons to remove ads and increase the display area. This will make it easier to view the calendars when you line them up top-and-bottom. ・You can import Palu Calendar backup files. You can import calendars that you have created on Palu to DuoCal. (Calendars imported from Palu cannot be edited.) *”Dropbox” is a trademark or registered trademark of Dropbox, Inc. *”Palu” is a product of MetaMoJi Corporation. *The screenshot shown here is the app with add-ons that remove ads.

About

Super Simple Diary

Record your thoughts and memories with this straightforward journaling application. It allows you to attach multiple photos to entries and features a minimalist design to keep your focus. Your data is stored locally on your device, ensuring complete privacy.

Highlights
  • Simple writing and reading interface
  • Attach multiple pictures to entries
  • Minimalist and distraction-free design
  • Local data storage for privacy
  • User-friendly interface
Read full description

Hi. This is the simplest diary app "Super Simple Diary". FEATURES: - Only write and read a diary. No extra features. - Attach multiple pictures. - The simple and minimalist design will not disturb your thoughts. - The recorded data is saved only in your phone, so your privacy is assured.

Screenshots

DuoCal4 screens
Super Simple Diary4 screens

Verdict

The call

The clearest difference is ratings volume: Super Simple Diary at 11 against DuoCal's 1. Super Simple Diary also leads on update cadence (every 2 months vs every 3 months). On price, rating, review sentiment and ads 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. DuoCal sells 2 one-off in-app purchases and Super Simple Diary 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

On the App Store both sit at effectively the same score — 5.0 for DuoCal against 5.0 for Super Simple Diary. That said, the two scores are not equally well evidenced: Super Simple Diary has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

DuoCal ships an update every 3 months, Super Simple Diary every 2 months. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
DuoCal versus Super Simple Diary: the parameters behind the verdict, then further details
ParameterDuoCalSuper Simple Diary
PriceFreeFree
Rating5.0 (1 ratings)5.0 (11 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings111 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size39 MB56 MB
Age rating4+4+
DeveloperWAZAnauts LLCRyunosuke Nagase

Customer experience

DuoCal

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Super Simple Diary

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

DuoCal

One-time2
  • Import Palu calendars$0.99
  • Remove Ads$8.99
1 purchases

Super Simple Diary

One-time1
  • PREMIUM - LIFETIME$5.99

Questions

Is DuoCal free?
DuoCal is free to download, with in-app purchases available.
Is Super Simple Diary free?
Super Simple Diary is free to download, with in-app purchases available.
Which has better reviews, DuoCal or Super Simple Diary?
DuoCal and Super Simple Diary are both rated 5.0 out of 5 on the App Store, from 1 and 11 ratings respectively.
Do DuoCal or Super Simple Diary have ads?
Both DuoCal and Super Simple Diary show ads.
Which is updated more often, DuoCal or Super Simple Diary?
DuoCal ships an update every 3 months, and Super Simple Diary every 2 months. Most recently, DuoCal was updated on October 24, 2026 and Super Simple Diary on October 24, 2026.

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