Comparison

進数変換 vs LectureWatch

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

Head to head
About

進数変換

Features
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2進数、8進数、10進数、16進数を相互に変換することができます。 いちいち変換する対象を選ばなくても一つ入力すれば他の3つに同時に変換する事ができます。 ※免責事項:変換精度は十分に検証していますが本アプリにより何らかの損害が生じても責任を負いかねますので、あらかじめご了承ください。

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

進数変換2 screens
LectureWatch3 screens

Verdict

The call

The clearest difference is ads: LectureWatch at none against 進数変換's shown. On price, update cadence, 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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 5 level
進数変換 versus LectureWatch: the parameters behind the verdict, then further details
Parameter進数変換LectureWatch
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size5 MB8 MB
Age rating4+4+
Developer田中 俊多TARO TATSUMI

In-app purchases

None

進数変換

No in-app purchases

None

LectureWatch

No in-app purchases

Questions

Is 進数変換 free?
進数変換 is free to download, with no in-app purchases.
Is LectureWatch free?
LectureWatch is free to download, with no in-app purchases.
Do 進数変換 or LectureWatch have ads?
進数変換 shows ads; LectureWatch does not.
Which is updated more often, 進数変換 or LectureWatch?
進数変換 ships an update every 2 months, and LectureWatch every 2 months. Most recently, 進数変換 was updated on November 7, 2026 and LectureWatch on October 28, 2026.

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