Comparison

カレンダー vs LectureWatch

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

Head to head
About

カレンダー

Features
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これはシンプルで便利なカレンダーであり、多くの言語をサポートしています。 毎年仕事と休暇の日付を更新します。 さまざまなリマインダーをカスタマイズして、休暇や旅行の時間計画を容易にすることができます。 1.グレゴリオ暦と月のクエリ 2.グレゴリオ暦または太陰暦のさまざまな色のリマインダーをカスタマイズする 3.システムカレンダーを統合すると、シンプルなカレンダーでシステムカレンダーを直接表示できます 4.ユーザー設定のカレンダーは個人アカウントのクラウドスペースに存在でき、変更は失われません 5.日付間隔リマインダーの修正 6.シンプルなカレンダーでシステムカレンダーに特別な日付を追加できます。 ディスプレイは異なる色で区別されます。または、他のシステムカレンダーを非表示にして、仕事と家族旅行を区別できます。 7.平日のリマインダー(休日はカウントしません) 8.ユーザーは、休暇または休日以外の機能をカスタマイズできます 9.占星術カレンダー 10.観光カレンダー

About

LectureWatch

Features
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Have you ever wished you had a small analog clock and stopwatch while giving a lecture with your iPad open? Lecture Watch combines an analog clock, stopwatch, and a charming bell into one simple app. Resize the clock to fit neatly on the edge of your iPad screen. Tap the clock face to start or stop the stopwatch, and triple-tap to reset. Tap the bell to play a clear “chime” sound that adds a pleasant touch to your session. On iPhone, enlarge the clock to fill the screen for better visibility. Ideal for lectures, public talks, and presentations. Features: • Adjustable clock size • Tap to start/stop stopwatch • Realistic bell animation and sound • Supports multiple languages (English, Japanese, Traditional & Simplified Chinese) A small and elegant analog clock you can always keep on your iPad desktop.

Screenshots

カレンダー4 screens
LectureWatch3 screens

Verdict

The call

The clearest difference is ads: LectureWatch at none against カレンダー's shown. LectureWatch also leads on update cadence (every 2 months vs every 12 months). カレンダー's advantage is iOS requirement (12.0 vs 15.0). On price, 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.

UpkeepUpdate frequency

カレンダー ships an update every 12 months, LectureWatch every 2 months. Both last shipped on October 28, 2026.

Scorecard3 real differences · 3 level
カレンダー versus LectureWatch: the parameters behind the verdict, then further details
ParameterカレンダーLectureWatch
PriceFreeFree
Update frequencyEvery 12 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size13 MB8 MB
Age rating4+4+
DeveloperYihang HuangTARO TATSUMI

In-app purchases

None

カレンダー

No in-app purchases

None

LectureWatch

No in-app purchases

Questions

Is カレンダー free?
カレンダー is free to download, with no in-app purchases.
Is LectureWatch free?
LectureWatch is free to download, with no in-app purchases.
Do カレンダー or LectureWatch have ads?
カレンダー shows ads; LectureWatch does not.
Which is updated more often, カレンダー or LectureWatch?
カレンダー ships an update every 12 months, and LectureWatch every 2 months. Most recently, カレンダー was updated on October 28, 2026 and LectureWatch on October 28, 2026.

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