Time Manage vs 関数電卓
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time Manage
A minimalist time tracking application that allows users to start and stop timers with just two taps. It offers a simple interface for monitoring time spent on various activities, with historical data and customizable themes. Designed for focus and efficiency.
- Two-tap start/stop functionality
- Minimalist interface
- View time totals at a glance
- Daily/weekly history review
- Customizable themes
- Private and distraction-free
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Where did your time go today? Time Manage is the simplest way to answer that question. It works with just two taps: start to begin timing, stop when you're done. Study, work, workouts—track any activity the moment you start it. Unlike full-blown time-tracking tools, there are no projects to configure and no mandatory setup. When you save, just pick a tag like Study, Work, or Workout—your last tag is already selected, so repeating an activity is a single tap. Tags are always optional; Time Manage does the rest. SEE WHERE YOUR TIME GOES - A pie chart breaks your time down by tag, so you finally know how you spend your days - A daily bar chart shows how your hours stack up, tag by tag - Check today's total and your all-time total at a glance BUILD A DAILY HABIT - A streak counter shows how many days in a row you've tracked—keep it alive! - A Home Screen widget puts today's total and your current streak right where you'll see them - While the timer runs, your elapsed time appears live on the Lock Screen and in the Dynamic Island (Live Activity)—no need to open the app - An optional, gentle evening reminder only when your streak is about to break - Set a daily goal and the widget, Lock Screen, and notifications all show how much is left (entirely optional) - Catch a timer you forgot to stop: when a session runs far longer than usual, one tap trims it to your typical length SIMPLE AND YOURS - Fully offline and private—no account, no sign-up - Multiple color themes with matching app icons Perfect for studying, deep work, focus sessions, workouts, and building better habits one day at a time. Track your time. See your day. Keep your streak going with Time Manage.
関数電卓
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Casio fx-991にインスパイアされた本格派の関数電卓アプリです。 【特徴】 - 三角関数(sin・cos・tan・逆三角関数) - 対数(log・ln)・べき乗・平方根 - SHIFT機能で第2機能に切り替え - メモリ機能(M+・M-・MR) - DEG/RAD切り替え - 計算式と結果を同時表示 - 見やすいCasio風液晶ディスプレイ - 日本語・英語対応 大学の授業・理工系の仕事・日常の計算まで幅広く対応。
Screenshots
Verdict
The clearest difference is in-app purchases: 関数電卓 at none against Time Manage's 4. 関数電卓 also leads on ads (none vs shown). Time Manage's advantage is update cadence (every 4 days vs monthly) and iOS requirement (17.0 vs 26.5). 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. Time Manage sells 4 one-off in-app purchases. 関数電卓 asks for nothing beyond the download.
Time Manage ships an update every 4 days, 関数電卓 monthly. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.
| Parameter | Time Manage | 関数電卓 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 56.3% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 days — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 22 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Hajime Nakamura | Kouki Yoshimoto |
In-app purchases
Time Manage
- Small Tip$1.99
- Remove Ads$2.99
- Medium Tip$3.99
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- Large Tip$6.99
関数電卓
No in-app purchases









