Comparison

MAAARK vs おたよりカレンダー

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

Head to head
About

MAAARK

Features
Read full description

maaarkは、SNSやWebで見つけたURLをすばやく保存し、あとから再発見できるアプリです。 共有シートから1タップで保存でき、タイトルや画像も自動で取得。 タグで情報を整理し、キーワード検索で必要な情報にすぐアクセスできます。 仕事のメモからプライベートな記録まで、散らばりがちなリンクをひとつにまとめて管理できます。

About

おたよりカレンダー

Features
Read full description

Organize school newsletters with your camera. Just take a photo of a newsletter from school, nursery, or kindergarten — Otayori Calendar automatically extracts due dates and supplies, and puts them on your calendar. ■ Main features [Camera scan] Snap a photo and the app extracts due dates and supplies automatically. No typing needed. [Calendar view] See this month's and next month's school events at a glance in a monthly calendar. [Supplies checklist] On the morning of the event, open the app and check items off one by one. [Multiple children] Assign a color to each child so you can tell whose newsletter it is instantly. [Manual entry] Add a title, due date, and supplies by hand when a photo isn't practical. [Widgets] See upcoming due dates and supplies on your Home Screen and Lock Screen — without opening the app. ■ Privacy Photo scanning and text recognition run entirely on your device. Your photos are never sent to us. If you are signed in to iCloud, your saved newsletters (including photos) are also stored in your own iCloud and synced across your devices. The app also connects to outside services in these cases: · Add to Google Calendar: the title, date, and supplies of the event you choose · Family sharing: delivered to the people you share with via iCloud · In-app purchases: Apple's App Store is used to load, buy, and restore purchases · Ads: information required for ad delivery ■ Requirements iOS 17.0 or later / iPhone An in-app purchase is available to remove ads.

Screenshots

MAAARK3 screens
おたよりカレンダー4 screens

Verdict

The call

The clearest difference is in-app purchases: MAAARK at none against おたよりカレンダー's 2. MAAARK also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). おたよりカレンダー's advantage is update cadence (every 3 days vs every 3 weeks). On price 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. おたよりカレンダー sells 2 one-off in-app purchases. MAAARK asks for nothing beyond the download.

UpkeepUpdate frequency

MAAARK ships an update every 3 weeks, おたよりカレンダー every 3 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 3 level
MAAARK versus おたよりカレンダー: the parameters behind the verdict, then further details
ParameterMAAARKおたよりカレンダー
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size22 MB7 MB
Age rating17+4+
Developernaoki futamachiKUREHO

In-app purchases

None

MAAARK

No in-app purchases

2 purchases

おたよりカレンダー

One-time2
  • Remove Ads$1.99
  • Plus$9.99

Questions

Is MAAARK free?
MAAARK is free to download, with no in-app purchases.
Is おたよりカレンダー free?
おたよりカレンダー is free to download, with in-app purchases available.
Do MAAARK or おたよりカレンダー have ads?
おたよりカレンダー shows ads; MAAARK does not.
Which is updated more often, MAAARK or おたよりカレンダー?
MAAARK ships an update every 3 weeks, and おたよりカレンダー every 3 days. Most recently, MAAARK was updated on October 28, 2026 and おたよりカレンダー on October 25, 2026.

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