進数変換 vs LectureWatch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
進数変換
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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。
LectureWatch
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.
| Parameter | 進数変換 | LectureWatch |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 田中 俊多 | TARO TATSUMI |
In-app purchases
進数変換
No in-app purchases
LectureWatch
No in-app purchases









