関数電卓 vs outtimer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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。
outtimer
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You know exactly when you have to be out the door. Somewhere between the shower and your shoes, you lose track. outtimer only cares about one time: when you have to leave. It tells you how many minutes are left, out loud, while you're holding a toothbrush, a hair dryer, or a cup of coffee. WHAT IT DOES Set the time you need to leave and tap Start. That's the whole setup. Every 1 to 5 minutes (you choose), you'll hear "12 minutes left." For the last 10 minutes, Final spurt steps it up to every minute, so the deadline never sneaks up on you. When time's up, it rings. FOR WHEN YOUR HANDS ARE WET • Keeps announcing with the screen off and the app closed • Turns your music down instead of stopping it, so your podcast keeps playing underneath • Vibration only, with three distinct patterns, for when someone's still asleep • Lock Screen widget, Live Activity, and Dynamic Island: see the countdown without unlocking MADE FOR TIME BLINDNESS you just can't feel 20 minutes slipping by, a silent clock won't help. You have to look at it, and looking is exactly what you forget to do. outtimer tells you instead. PRESETS Weekday mornings, gym nights, the school run. Each preset saves its own deadline, interval, and sound or vibration. Repeat it on the days you choose, or use it once and it turns itself off. SUBSCRIPTION INFO Pro is available as a monthly or yearly auto-renewing subscription, or a one-time lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage and cancel your subscription in your Account Settings after purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://polroute.com/outtimer/privacy-policy Put the phone down. We'll tell you.
Screenshots
Verdict
The clearest difference is in-app purchases: 関数電卓 at none against outtimer's 4. 関数電卓 also leads on ads (none vs shown). outtimer's advantage is update cadence (every 5 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. outtimer sells 4 in-app purchases, starting at $1.99 per month. 関数電卓 asks for nothing beyond the download.
関数電卓 ships an update monthly, outtimer every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | 関数電卓 | outtimer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Kouki Yoshimoto | polroute |
In-app purchases
関数電卓
No in-app purchases
outtimer
- pro$1.991 Month
- pro(year)$6.991 Year
- Premium$0.99
- Pro Lifetime$9.99









