Comparison

Otona Calendar vs まるばつカレンダー:予定表とマーク日記

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

Head to head
About

Otona Calendar

This straightforward scheduling app syncs with your existing iOS calendars, including iCloud and Google. It offers event templates, search functionality, and notifications without requiring complex setup. An optional one-time purchase removes advertisements.

Highlights
  • Event templates
  • Move and copy events
  • Find free time
  • Search events
  • Create custom calendars
  • Event notifications
  • Passcode lock
Features
Read full description

Otona Calendar is a simple schedule app you can use right after installing it. We left out everything extra. The app uses the calendars already saved on your iPhone, so if you switch from another calendar app, your events are all here with no setup. Calendars synced through iOS, such as iCloud and Google, show up as they are. [What you can do] - Templates for events you add often - Move and copy events - Find free time - Search events - Create your own calendars - Event notifications - Passcode lock Remove ads with a one-time purchase. - URL scheme: otonaCal://

About

まるばつカレンダー:予定表とマーク日記

Features
Read full description

本アプリは日記機能つきスケジュール管理アプリです。 日記機能には、学会でも発表された「世界一簡単な日記」を取り入れています。 一日の終わりにその一日を「まる」、「ばつ」、「さんかく」で評価しよう。 いい一日・・・・・・まる 悪い一日・・・・・・ばつ まあまあな一日・・・さんかく 継続することでどんな一日が自分にとって良い日か、どんな一日が悪い日なのかよくわかります。 よい日悪い日の判断基準は変化します。判断基準の変化に気づくことができるのがこのアプリの特徴です。 【こんなシチュエーションに】 ・もっと幸せになりたいと思ったとき ・どんな出来事が自分の幸せと関係あるのか知りたいとき 【こんな人におすすめ】 ・幸福度を測定したい人 ・自分の価値観を知りたい人 ・日記をつけたいけど面倒な人 ・最近マンネリだなぁと感じる人

Screenshots

Otona Calendar4 screens
まるばつカレンダー:予定表とマーク日記3 screens

Verdict

The call

The clearest difference is in-app purchases: まるばつカレンダー:予定表とマーク日記 at none against Otona Calendar's 1. まるばつカレンダー:予定表とマーク日記 also leads on review sentiment (60% vs 42%) and device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. Otona Calendar sells 1 one-off in-app purchase. まるばつカレンダー:予定表とマーク日記 asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.

Scorecard3 real differences · 7 level
Otona Calendar versus まるばつカレンダー:予定表とマーク日記: the parameters behind the verdict, then further details
ParameterOtona Calendarまるばつカレンダー:予定表とマーク日記
PriceFreeFree
Rating4.1 (10 ratings) — better—
Positive reviews41.7% of reviews60.0% of reviews — better
Number of ratings10 — better—
Update frequencyFortnightlyFortnightly
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size49 MB51 MB
Age rating4+4+
DeveloperMasaki HiranoMasao Saeki

Customer experience

Otona Calendar

All ratings10 ratings
Positive80.0%
Neutral10.0%
Negative10.0%
Written reviews60 reviews
Positive41.7%
Neutral10.0%
Negative48.3%

まるばつカレンダー:予定表とマーク日記

Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

1 purchases

Otona Calendar

One-time1
  • Remove Ads$3.99
None

まるばつカレンダー:予定表とマーク日記

No in-app purchases

Questions

Is Otona Calendar free?
Otona Calendar is free to download, with in-app purchases available.
Is まるばつカレンダー:予定表とマーク日記 free?
まるばつカレンダー:予定表とマーク日記 is free to download, with no in-app purchases.
Do Otona Calendar or まるばつカレンダー:予定表とマーク日記 have ads?
Both Otona Calendar and まるばつカレンダー:予定表とマーク日記 show ads.
Which is updated more often, Otona Calendar or まるばつカレンダー:予定表とマーク日記?
Otona Calendar ships an update fortnightly, and まるばつカレンダー:予定表とマーク日記 fortnightly. Most recently, Otona Calendar was updated on November 11, 2026 and まるばつカレンダー:予定表とマーク日記 on November 12, 2026.

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