Study Stopwatch vs Kadai
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/
Kadai
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レポートや課題の締切管理を、シンプルに行うための学生向け課題管理アプリです。 課題名と締切を入力するだけで、レポート・課題を一覧で管理できます。 複数の授業の課題をまとめて確認でき、提出忘れを防ぎます。 忙しい学生生活の中で、 「何がいつまでだったか分からない」 そんな悩みを解消します。
Screenshots
Verdict
The clearest difference is in-app purchases: Kadai at none against Study Stopwatch's 1. Study Stopwatch's advantage is ads (none vs shown) and iOS requirement (16.2 vs 26.2). 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 Stopwatch sells 1 one-off in-app purchase. Kadai asks for nothing beyond the download.
| Parameter | Study Stopwatch | Kadai |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 weeks | — |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.2 — better | 26.2 |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | kotobaz | Naruhide Shibazaki |
In-app purchases
Study Stopwatch
- Widget機能$0.99
Kadai
No in-app purchases









