あと何日 vs ondot timer|No
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
あと何日
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期限管理アプリ - シンプルで便利な締切カウントダウン 大事な締切やイベントの日まで、あと何日かを簡単に管理できるアプリです! 仕事のタスク、試験日、記念日、支払い期日など、忘れたくない日付を登録し、効率的にスケジュール管理をしましょう。 【主な機能】 ・締切までの日数をカウントダウン – 一覧でひと目でチェック ・ロック画面&ホーム画面ウィジェット対応 – アプリを開かなくてもすぐ確認 ・リマインダー通知 – 期日が近づいたらお知らせ ・カテゴリ管理 – 仕事・プライベート・優先度などで整理 ・シンプル&直感的なデザイン – 誰でも簡単に使える 【こんな方におすすめ!】 ・提出期限や支払日をうっかり忘れがち ・大切な記念日をしっかり覚えておきたい ・受験や試験のスケジュール管理をしたい ・プロジェクトの締切をしっかり管理したい ロック画面やホーム画面でいつでもチェックできるから、締切を逃さない! 今すぐダウンロードして、スマートなスケジュール管理を始めましょう!
ondot timer|No
This app eliminates the need for time calculations by allowing you to set timers based on a desired end time or duration. It displays both the ringing time and remaining time at a glance, perfect for tasks and deadlines.
- Set timers by desired end time
- Set timers by duration
- See ringing time and time remaining
- Save frequent timer presets
- Apple Watch integration
- Live Activity on Lock Screen/Dynamic Island
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No math. Just enter the time you want it to ring. "I need to leave by 10:50... how many minutes is that?" "I have to get off at 14:51... how long do I have?" You don't need to calculate anymore. ondot timer starts from the time you want it to ring. See both "when it rings" and "time remaining" at a glance. ■ for people who ・Find "how many minutes?" math annoying ・Want to know when the timer rings, not just the countdown ・Don't want to clutter their alarm list ・Want to timebox small tasks by clock time ■ perfect for ・Napping on trains — enter arrival time directly ・"Back by 1:00 PM" lunch break timer ・"Leave the cafe by 3:00" deadline ・Keeping housework from dragging on ■ end time mode — set the exact time to ring "Ring at 14:51." That's it. ■ duration mode — start from minutes "20 minute timer" works too. Shows the exact time it will ring, so you always know when it ends. ■ presets Save your frequent settings. Add a title. One tap to start. ■ Apple Watch Check the countdown on your wrist. Works independently without iPhone. ■ Live Activity Real-time display on Lock Screen and Dynamic Island. Check the timer while using other apps. *Supported devices only Free. No ads. No account required.
Screenshots
Verdict
The clearest difference is review sentiment: ondot timer|No at 83% against あと何日's 0%. ondot timer|No also leads on in-app purchases (none vs 1) and ads (none vs shown). あと何日's advantage is update cadence (daily vs every 3 days). On price, 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
Both are free to download. あと何日 sells 1 one-off in-app purchase. ondot timer|No asks for nothing beyond the download.
あと何日 ships an update daily, ondot timer|No every 3 days. Both last shipped on October 24, 2026.
| Parameter | あと何日 | ondot timer|No |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 83.3% of reviews — better |
| Update frequency | Daily — better | Every 3 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Takatoshi Fukino | Momoka Shiramizu |
Customer experience
あと何日
ondot timer|No
In-app purchases
あと何日
- フルバージョン$1.99
ondot timer|No
No in-app purchases









