残業代チェッカー vs LifeCoster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
残業代チェッカー
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「自分の残業代って、正しく払われているのかな?」 そんな疑問に、その場で答えを出すための計算アプリです。 毎日の打刻や面倒な記録は必要ありません。月給と今月の残業時間を入れるだけで、法律で定められた割増率にもとづいて残業代を自動で計算します。 ■ こんな方に ・固定残業代(みなし残業)で、本当に足りているのか確かめたい ・割増率(25%・深夜・休日・月60時間超)の計算が複雑でよくわからない ・勤怠アプリのように毎日記録するのは面倒。今すぐ答えだけ知りたい ■ できること(無料) ・月給と所定労働時間から「基礎時給」を自動算出 ・平日の残業(25%)、深夜の残業(+25%)、法定休日(35%)、休日深夜の割増を正確に計算 ・月60時間を超える残業の追加割増(+25%)にも対応 ・「あなたの1時間の残業=◯◯円」をひと目で表示 ・計算の根拠(時給・割増率・内訳)を展開して確認できるので、自分で検算できます ■ プレミアム(買い切り)でできること ・毎月の残業代を記録して、累計で見える化 ・「もらえているはずの額」との差を整理して把握 ・給与パターンの保存(昇給・転職にも対応) ■ 安心して使えます ・完全オフライン。入力した給与や残業のデータは端末内にのみ保存され、外部に送信されません ・広告なし。買い切りなので、あとから費用が増える心配もありません ・大きなタップ領域で、数字の入力もかんたん ■ 割増率について(2023年改正に対応) ・時間外労働:25%以上 ・深夜労働(22
LifeCoster
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LifeCoster turns your everyday effort into a number you can watch grow — second by second. Decide to skip something you’d normally buy, or start a work session, and the value of that choice ticks upward in real time. Seeing the number climb makes saving and sticking with good habits feel rewarding instead of restrictive. Three simple tabs, switched at the bottom of the screen: • MISSION — Register something you’ve decided not to buy (a daily coffee, snacks, a subscription you canceled) with an amount and a period. While you keep it up, the money you’re NOT spending grows every second. Reach the goal and you keep the whole amount; give up partway and it resets to zero. • WORK — Set your pay and an end time, then start working. Until that time, your earnings grow second by second. Hourly, daily, or monthly pay are all converted to a live per-second rate. Run several at once — main job, side gigs, and more. • RECORDS — Review your totals for completed and given-up items, and track an overall savings or earnings goal. ALSO INCLUDED • Apple Watch app and complications keep the number on your wrist. • Local notifications cheer you on at the halfway point and when you reach a goal. • Currency follows your device region automatically (¥, $, €, £, and more), or pick a fixed style. A NOTE ON THE NUMBERS The amount you see is a visualization of value created by your own effort — what you saved by holding back, or earned by working. It is NOT real money, points, or a prize, and nothing is paid out by us or the app. It’s not a lottery or sweepstakes. If you’d like to actually save, move that amount into your real savings to turn the on-screen number into money in hand. We deliberately avoid prize-style hype. The goal is simple: let the value of your own effort stack up in a way that feels good to watch. ONE-TIME PURCHASE (OPTIONAL) A single optional purchase removes all in-app ads and unlocks the “Game Style” design (a chase-HUD look). It’s a one-time payment — no subscription — and can be restored after switching devices or reinstalling.
Screenshots
Verdict
The clearest difference is ads: 残業代チェッカー at none against LifeCoster's shown. 残業代チェッカー also leads on iOS requirement (13.0 vs 17.0). LifeCoster's advantage is update cadence (every 4 days vs every 4 weeks). On price, in-app purchases 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. 残業代チェッカー sells 1 one-off in-app purchase and LifeCoster sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
残業代チェッカー ships an update every 4 weeks, LifeCoster every 4 days. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.
| Parameter | 残業代チェッカー | LifeCoster |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 32 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | MASAKI CHIBA | SHOTARO TAKAHASHI |
In-app purchases
残業代チェッカー
- 残業代チェッカー プレミアム$3.99
LifeCoster
- 広告を消す&ゲームスタイルの解禁$0.49









