Comparison

HiCal vs Simple Calendar・Schedule app

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

Head to head
About

HiCal

This app facilitates collaborative event planning and scheduling for groups. Share timetables, receive real-time updates on changes, and communicate via comments. Ideal for students, project teams, and organizations to stay synchronized.

Highlights
  • Group event scheduling
  • Real-time push notifications
  • Event comments and discussion
  • Shared timetables
  • Private and public groups
  • Event repetition support
Read full description

Organize yourselves for your classes, projects, or company with HiCal, the collaborative calendar! Create or join your class’ or club’s group, and get your shared timetable in your pocket. You can be part of multiple groups. You will receive Push notifications each time that a group’s event is modified, or an event is commented. Event repetition is supported (including “once every two weeks”). HiCal helps you to organize yourself and to collaborate with your friends and colleagues in different situations: - Students and pupils: Add comments to a lesson at a given day, to indicate homework and exams for example, and they will instantly be synced across smartphones and tablets, and shared with your class. You will not ever ask yourself again what is left to do: the answer will be in your pocket, up-to-date, at any moment. Even if only one person indicates the exams to come, everyone will be aware: one for all, and all for one! - Projects: Determine deadlines with your teammates, and discuss them in the comments! Your project is a secret? Then create a secret group, which will be hidden from the group search results. Only the people you add will be able to join the group. - Companies, clubs and organizations: Write down meetings’ or activities’ dates and locations, suggest or edit in real time, and instantly update all your fellows of a schedule change, thanks to push notifications. - Organize public events: Create a group, open to everyone, to let people stay tuned about your upcoming events! In this kind of group, only the group’s administrators can create or edit events. Thus, you can share your events, your live sessions for example if you’re a band, while keeping control. And if something unexpected happens, you can inform group’s members thanks to comments and push notifications! - Education: If you are an educational institution (school, college, university...), you can also use HiCal, by creating a group for each class or course, and inviting your students in them. Simplify your teachers’ and students’ life with HiCal!

About

Simple Calendar・Schedule app

This app offers a streamlined calendar experience, focusing on essential features for easy event management. It's designed for users who prefer simplicity and a clean interface over complex functionalities. Get organized with core calendar tools and helpful notifications.

Highlights
  • Calendar view
  • Event creation
  • Search functionality
  • Notifications
  • Holiday tracking
  • Customizable styles
  • Data backup
Features
Read full description

About the App ・ A simple and refined calendar app. ・ Focuses on "subtracting rather than adding" and has only the essential features needed for a calendar. ・ An app that pursues "Simple is best". Recommended for ・ People who want to use a calendar app easily and simply ・ People who want to use a regular calendar app ・ People who are tired of using calendar apps with complex features Features ・ Calendar ・ Events ・ Search ・ Notifications ・ Holidays ・ Styles ・ Backup

Screenshots

HiCal4 screens
Simple Calendar・Schedule app4 screens

Verdict

The call

The clearest difference is ads: HiCal at none against Simple Calendar・Schedule app's shown. HiCal also leads on monetization model (free vs ad-supported) and iOS requirement (13.0 vs 15.0). Simple Calendar・Schedule app's advantage is update cadence (weekly vs every 2 months) and ratings volume (2.5K vs 25). On price, rating, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

HiCal holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Simple Calendar・Schedule app has 2.5K ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 55% of HiCal's written reviews are positive against 79% of Simple Calendar・Schedule app's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

HiCal ships an update every 2 months, Simple Calendar・Schedule app weekly. The most recent releases landed on October 21, 2026 and October 27, 2026 respectively.

Scorecard6 real differences · 4 level
HiCal versus Simple Calendar・Schedule app: the parameters behind the verdict, then further details
ParameterHiCalSimple Calendar・Schedule app
PriceFreeFree
Rating4.8 (25 ratings) — better4.6 (2.5K ratings)
Positive reviews55.0% of reviews79.1% of reviews — better
Number of ratings252.5K — better
Update frequencyEvery 2 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size3 MB61 MB
Age rating4+4+
DeveloperNakagawa YugoFutoshi Niiho

Customer experience

HiCal

All ratings23 ratings
Positive91.3%
Neutral4.3%
Negative4.3%
Written reviews20 reviews
Positive55.0%
Neutral10.0%
Negative35.0%

Simple Calendar・Schedule app

All ratings2,271 ratings
Positive89.8%
Neutral3.8%
Negative6.4%
Written reviews330 reviews
Positive79.1%
Neutral9.4%
Negative11.5%

Bugs and requests

HiCal

Not enough reviews yet to summarise bugs or requests.

Simple Calendar・Schedule app

Reported bugs

3 issues
  • Backup/restore functionality not working
  • Events disappearing from calendar view
  • Dates/times not displaying correctly

Requested features

5 requests
  • Repeat/recurring event functionality
  • Widget support for home screen
  • Ability to share calendars with others
  • Option to set custom notification times
  • More color palette choices

In-app purchases

None

HiCal

No in-app purchases

None

Simple Calendar・Schedule app

No in-app purchases

Questions

Is HiCal free?
HiCal is free to download, with no in-app purchases.
Is Simple Calendar・Schedule app free?
Simple Calendar・Schedule app is free to download, with no in-app purchases.
Which has better reviews, HiCal or Simple Calendar・Schedule app?
HiCal is rated higher. HiCal averages 4.8 out of 5 from 25 ratings, while Simple Calendar・Schedule app averages 4.6 from 2.5K ratings.
Do HiCal or Simple Calendar・Schedule app have ads?
Simple Calendar・Schedule app shows ads; HiCal does not.
Which is updated more often, HiCal or Simple Calendar・Schedule app?
HiCal ships an update every 2 months, and Simple Calendar・Schedule app weekly. Most recently, HiCal was updated on October 21, 2026 and Simple Calendar・Schedule app on October 27, 2026.

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