Digital Clock vs 勉強タイマー
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Digital Clock
Transform your device into a stylish digital clock with a customizable LED display. Choose from various time formats, colors, and fonts. Includes white noise for focus or sleep and an alarm function.
- Customizable LED display
- 12/24 hour mode
- Show/hide date
- Font and color selection
- White noise generator
- Alarm function
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This is a beautiful digital clock for those who want to have a digital clock on their nightstand or coffee table. You can change the color to almost whatever you want. It shows you various time elements and you can use a few different time and date formats, colors, and clock faces. The app is very affordable which is a great deal for one of the simplest, but best clock apps. Features: - Beautiful digital display - Switch between 12 and 24 modes - Show or hide date - Select your preferable font or color - Play white noise to help you focus or sleep - Set alarm and never miss any important event White noise included such as: River stream, Ocean waves, Underground cave, Soft rain, Crackling fire, Sizzling pan, Birds chirping, Summer crickets, Noise fan, ASMR, Deep sea, Midnight crickets, Beach seagulls, Cave water dripping, Crackling fireplace, Pot boiling, Green forest, Peaceful ambience, Clock ticking, Footstep Notes: - The auto lock will be disabled while the clock is active. - It doesn’t start automatically like the Mac screensaver. Please leave us your review, we will do our best to improve the app.
勉強タイマー
A visual countdown timer that helps you manage study, work, and break times. Color bars decrease to show remaining time at a glance, with customizable skins and sound options. Works offline and requires no account.
- Visual countdown timer with color bars
- Adjustable time settings up to 199 minutes
- Large horizontal display for easy viewing
- Customizable aluminum-style skins
- Adjustable notification sounds and haptic feedback
- Offline functionality
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あと何分、集中する? 残り時間を、色でつかもう。 「勉強タイマー」は、勉強・仕事・休憩の時間を区切る、見えるカウントダウンタイマーです。20本のカラーバーが少しずつ減っていくので、数字を読み続けなくても、残り時間の量をひと目で確認できます。 ■ こんな場面に ・25分だけ勉強や読書に集中したいとき ・宿題や試験勉強を、決めた時間で進めたいとき ・仕事や会議を、時間を決めて切り上げたいとき ・休憩やストレッチの終わりを確認したいとき ■ 机に置いて、横向きの大きな表示で 計測を始めると横向き表示になり、カラーバー・残り時間・残量パーセントを大きく表示。オレンジ、ライム、グリーン、ブルーのバーで、時間の減り方を視覚的に捉えられます。 ■ 時間を選んで、すぐ開始 10秒単位で最大199分50秒まで設定できます。右側のダイヤルから一時停止・再開・終了を操作でき、操作後はボタンが収納されます。 ■ 場所に合わせたお知らせ 通知音は小・大・消音の3段階。残り半分の合図、触覚フィードバック、任意のバックグラウンド通知に対応しています。バックグラウンド通知には、iPhoneの通知許可が必要です。 ■ 好みの見た目で 4色のアルミニウム風スキンから、タイマーの仕上げを選べます。 広告、アプリ内課金、サブスクリプション、アカウント登録はありません。タイマーはオフラインで使えます。アクセス解析や個人データの収集も行いません。
Screenshots
Verdict
The clearest difference is price: Digital Clock at Free against 勉強タイマー's $0.99. Digital Clock also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). 勉強タイマー's advantage is in-app purchases (none vs 6) and ads (none vs shown). On update cadence 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
Digital Clock is free to download; 勉強タイマー costs $0.99 up front. Digital Clock sells 6 in-app purchases, starting at $1.99 per month. 勉強タイマー asks for nothing beyond the download.
Digital Clock ships an update every 6 weeks, 勉強タイマー every 4 weeks. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.
| Parameter | Digital Clock | 勉強タイマー |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.3 (157 ratings) — better | — |
| Positive reviews | 65.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 157 — better | — |
| Update frequency | Every 6 weeks | Every 4 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 36 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Edwin Chan | SMART BIT K.K |
Customer experience
Digital Clock
勉強タイマー
Bugs and requests
Digital Clock
Reported bugs
4 issues- App display cuts off numbers on iPad Pro (resolved in v15.1)
- App times out with phone's auto-lock feature
- Date format inconsistency (TUE, 29 NOV vs TUE, NOV 29)
- Reminder feature unclear/non-functional as alarm
Requested features
11 requests- Alarm functionality (not just reminders)
- In-app brightness adjustment without leaving app
- Eliminate or dim the white navigation bar at bottom
- Full-screen mode to hide status bar and home indicator
- Easy landscape/portrait orientation toggle within app
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- Screen burn prevention with kinetic display
- Battery level indicator display
- Timer functionality
- Prevent screen auto-lock while app is open
- Additional font options without review requirement
- Better documentation and instructions
勉強タイマー
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Digital Clock
- Monthly$1.991 Month
- Yearly Trials3 Days trial$12.991 Year
- Clock Font$0.99
- Clock Skin$1.99
- All Features$24.99
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- Remove Ads$24.99
勉強タイマー
No in-app purchases









