Comparison

Study Stopwatch vs Simple Study Stamp

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

Head to head
About

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.

Highlights
  • Study time tracking
  • Subject organization
  • Calendar progress review
  • Focused session recording
  • Progress visualization
Features
Read full description

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/

About

Simple Study Stamp

Features
Read full description

Your study time is more than just a number. Keep your goals—and your current study session—visible right from your Home Screen and Lock Screen. Simple Study Stamp is a simple yet practical study time tracker with stopwatch, timer, and manual entry. With widgets, you can quickly check: • Time remaining until your goal date • Total study time • Target study time • Progress percentage And while a timer or stopwatch is running, you can check your current study status directly from the Lock Screen. Even after leaving the app, you can instantly see whether a study session is still running and how long you’ve been studying. Stay aware of your study session. Stay focused on your goal. Simple Study Stamp is designed to make consistent studying easier. See your progress at a glance Your study time is automatically organized by day, week, month, and year. Use easy-to-read bar charts and pie charts to see what you’ve studied and how much time you’ve spent on each subject. The calendar view also makes it easy to look back and see: “How much did I study that day?” “How much have I accomplished this month?” Your effort doesn’t disappear—it becomes a visible record of your progress. Track your way Choose the recording method that fits your study style: • Stopwatch • Timer • Manual entry Whether you’re studying at your desk, learning a language on your commute, reading, preparing for an exam, or working on professional development, you can record your study time in the way that works best for you. Keep your goals visible Set a target study time and goal date for each subject. Instead of simply recording study hours, Simple Study Stamp helps you stay aware of how far you’ve come and how far you still have to go. Home Screen and Lock Screen support make your goals easier to remember throughout the day. Great for • Exam preparation • Certifications • Language learning • Reading • Programming • Professional development • Self-study and lifelong learning No complicated setup. No unnecessary features getting in your way. No in-app purchases. Just open the app, start studying, and keep building your progress one session at a time. One minute today can make a big difference tomorrow. Make every minute count.

Screenshots

Study Stopwatch4 screens
Simple Study Stamp4 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Study Stamp at none against Study Stopwatch's 1. Study Stopwatch's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. Study Stopwatch sells 1 one-off in-app purchase. Simple Study Stamp asks for nothing beyond the download.

UpkeepUpdate frequency

Study Stopwatch ships an update every 3 weeks, Simple Study Stamp every 10 days. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 6 level
Study Stopwatch versus Simple Study Stamp: the parameters behind the verdict, then further details
ParameterStudy StopwatchSimple Study Stamp
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.2 — better17.0
Further details — not scored
Size2 MB10 MB
Age rating4+4+
DeveloperkotobazFutoshi Akahoshi

In-app purchases

1 purchases

Study Stopwatch

One-time1
  • Widget機能$0.99
None

Simple Study Stamp

No in-app purchases

Questions

Is Study Stopwatch free?
Study Stopwatch is free to download, with in-app purchases available.
Is Simple Study Stamp free?
Simple Study Stamp is free to download, with no in-app purchases.
Do Study Stopwatch or Simple Study Stamp have ads?
Simple Study Stamp shows ads; Study Stopwatch does not.
Which is updated more often, Study Stopwatch or Simple Study Stamp?
Study Stopwatch ships an update every 3 weeks, and Simple Study Stamp every 10 days. Most recently, Study Stopwatch was updated on October 8, 2026 and Simple Study Stamp on September 30, 2026.

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