Study Stopwatch vs Retime
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Study Stopwatch
This app helps you track your study sessions with a simple stopwatch. Organize your learning by subject and visualize your progress on a calendar. Stay focused and motivated to achieve your academic goals.
- Study time tracking
- Subject organization
- Calendar progress review
- Focused session recording
- Progress visualization
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Hazime is a simple stopwatch app for tracking your study time. Record your learning sessions, organize your subjects, and review your progress on the calendar. Keep moving forward one focused session at a time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Retime
This app helps serious learners manage their study time and track progress. It combines a timer, task management, and analytics to visualize daily efforts and ensure goals are met. Features include goal setting, exam countdowns, and app blocking to enhance focus.
- Unified task management and timer
- Study goal progress tracking
- Exam countdown and score tracking
- Distracting app blocking
- Pomodoro and count-up timer modes
- Study time visualization
- Customizable subjects and themes
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You're studying hard, but can't see any progress. You make a plan, but somehow it always falls apart. That feeling of "working hard but getting nowhere" — Retime changes that. Retime is a study management app for serious learners, bringing together a timer, task management, and learning analytics in one place. "Plan → Focus → Record → Analyze" Complete this entire cycle in a single app. Your daily efforts become visible through graphs and numbers. Students preparing for exams, professionals studying for certifications, language learners, building a reading habit—— Retime is here for anyone who is serious about reaching their goals. Feature ① Task Management and Timer, Unified ・Manage daily tasks with a weekly calendar. Swipe smoothly between weeks ・Link tasks to your timer to accurately record what you studied and for how long ・Set up recurring tasks to automatically create your daily study routine ・Drag and drop to reschedule tasks with ease ・One glance at your to-do list tells you exactly what to study today Feature ② Track Whether You're On Pace with Study Goals ・Set concrete goals like "finish 300 pages of this textbook by [date]" ・Automatically compare your recommended daily pace against your actual progress ・A predicted completion date is always shown, so you know at a glance whether you'll make it in time ・Manage multiple goals simultaneously — exam prep, certifications, reading, and more Feature ③ Exam Countdown & Mock Exam Score Tracking ・Register your exam dates and see remaining days updated in real time ・Log your mock exam and practice test scores by subject ・Visualize your score trends with charts to see how much you've improved Feature ④ Block Distracting Apps During Study Sessions ・Block apps like social media, YouTube, and games while you study ・Effective for breaking phone addiction ・Blocking is active only while the timer is running, so the quality of your study time goes up Feature ⑤ Two Timer Modes: Pomodoro & Count-Up ・Use the Pomodoro timer to alternate between focused work and breaks, maximizing productivity ・Use the count-up timer to freely measure and log your study time ・Supports Dynamic Island and Lock Screen Live Activity — always keep an eye on your timer ・Check today's study time at a glance with the home screen widget ・Stay focused with background sounds like alpha waves, brown noise, rain, and ocean waves Feature ⑥ Visualize Study Time to Stay Motivated ・View weekly and monthly study time trends in graph form ・See a subject-by-subject breakdown to understand where your time is going ・Browse your full session history in a timeline view ・Watching your efforts pile up keeps the motivation going Feature ⑦ Customize to Make It Yours ・Set your own subject names and colors ・Change the app's theme color to match your style Suitable for every learning scenario — students, professionals studying for certifications, language learners, and anyone building a reading habit. Start recording a little every day, and keep moving toward your goal.
Screenshots
Verdict
The clearest difference is ads: Study Stopwatch at none against Retime's shown. Study Stopwatch also leads on review sentiment (100% vs 72%). Retime's advantage is update cadence (every 5 days vs every 3 weeks). On price, in-app purchases, monetization model 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 Stopwatch sells 1 one-off in-app purchase and Retime sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Study Stopwatch ships an update every 3 weeks, Retime every 5 days. Both last shipped on September 23, 2026.
| Parameter | Study Stopwatch | Retime |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 72.2% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.2 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | kotobaz | Ryo Iida |
Customer experience
Study Stopwatch
Retime
In-app purchases
Study Stopwatch
- Widget機能$0.99
Retime
- リタイム PRO 1ヶ月$1.991 Month
- リタイム PRO 1年間 キャンペーン1 Year trial$19.991 Year
- リタイム PRO 1年間$19.991 Year








