Study Timer vs 勉強ストップウォッチ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Study Timer
Enhance your study habits and achieve deep focus with a powerful tracker and timer. Utilize the Pomodoro Technique, calming sounds, and automatic logging to stay motivated and productive. Ideal for students, professionals, and individuals managing ADHD.
- Pomodoro Focus Timer
- Automatic Study Tracker
- Natural Sounds & Lo-Fi BGM
- Study Calendar & Graph View
- Exam Countdown
- Distraction-Free UI
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Build real study habits and achieve focus that lasts. Struggling to focus or stay productive? Study Timer: Focus & Pomodoro is your powerful study tracker and focus timer for students, professionals, and anyone managing ADHD. Turn short focus sessions into lasting results with the proven Pomodoro Technique, calming natural sounds, and automatic study logs. Whether you're preparing for big exams, daily reading, or professional certifications, this app keeps you focused, motivated, and on track. ◆ Why Study Timer Works • Deep Focus × Study Habits × Automatic Tracking • Helps create consistent study habits through 25-minute focus bursts • Combines natural sounds with Lo-Fi BGM to block distractions • Tracks study time automatically — no manual effort needed • Perfect for users with ADHD who want structure and clarity No signup. No clutter. Just a focus timer built for real progress. ◆ Core Features (Free) • Pomodoro Focus Timer — 25/5 sessions, auto start/stop • Study Tracker — Your sessions logged automatically • Natural Sounds + Lo-Fi BGM — 7 options • Study Calendar — Daily records + graph view • Exam Countdown — Days left visualized • No Account — Start instantly, anytime → One app for deep focus, study habits, and productivity. No switching. No distractions. ◆ Premium Features (Optional) For users who want more control, deeper insights, and zero distractions: • No Ads — Stay focused, always • Custom Focus Timer — Adjust your focus duration • BGM Volume Control — Balance BGM and nature sounds • Advanced Stats & Charts — Visualize your progress in detail • Family Sharing — Share your plan at no extra cost ▶ Choose One-time Purchase or Subscription ▶ Yearly Plan includes a 7-day free trial ◆ What Users Are Saying Users say things like: “My motivation goes up when I check my logs.” “Two hours flew by—I stayed focused the whole time.” “This app helped me build a habit and pass my exam!” “It’s perfect for keeping my ADHD in check and tracking my study habits.” ◆ Best For... • High school / college students, exam takers, ADHD learners • Habit-builders who want a simple study tracker • Anyone seeking deep focus and fewer distractions • Users aiming to boost productivity and track real results ◆ Why Study Timer Works • Clean, distraction-free UI • Study time tracked automatically — no manual input • Visual feedback helps build consistency → Focus × Study Habits × Visualization = Real Results ◆ Focus BGM Options • Waves + Music Box • Rain + Music Box • Campfire + Guitar • River Stream + 528Hz • Cafe + Jazz • Writing + Lo-Fi • Underwater + Music Box • BGM OFF — Pure silence Perfect for reading, writing, and quiet work. ◆ How to Start 1. Set your durations 2. Tap [Start] 3. Study with focus — your study tracker logs it all automatically. Start with just one session. Build deep focus. Track progress. Create study habits that last. ▶ Free to use — lightweight, fast, no login required ▶ Optional upgrade: ad-free experience available Privacy Policy: http://thomsons.jp/sp/privacypolicy.htm Terms of Use: http://thomsons.jp/sp/pomodoro_terms.htm
勉強ストップウォッチ
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シンプルなストップウォッチアプリですが、バックグラウンドではカウントアップが自動で停止します。つまり、不意にスマホに気を取られて勉強とは関係のないことをしていたのに、その時間も勉強時間としてカウントアップされてしまうということを防げます。これは、実質勉強時間を測るのに最適なアプリです。
Screenshots
Verdict
The clearest difference is in-app purchases: 勉強ストップウォッチ at none against Study Timer's 5. 勉強ストップウォッチ also leads on ads (none vs shown) and update cadence (every 2 days vs every 2 months). Study Timer's advantage is iOS requirement (15.0 vs 18.0). 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
Both are free to download. Study Timer sells 5 in-app purchases, starting at $5.99 per year. 勉強ストップウォッチ asks for nothing beyond the download.
Study Timer ships an update every 2 months, 勉強ストップウォッチ every 2 days. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.
| Parameter | Study Timer | 勉強ストップウォッチ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (14 ratings) — better | — |
| Positive reviews | 84.6% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 478 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | THOMSON Inc. | Kazuchika Niwa |
In-app purchases
Study Timer
- Premium (annual)$5.991 Year
- Premium (3-Month)$7.993 Months
- Premium (Yearly)7 Days trial$15.991 Year
- Premium (lifetime)$9.99
- Premium (Lifetime)$29.99
勉強ストップウォッチ
No in-app purchases









