Comparison

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.

Head to head
About

あと何日

Features
Read full description

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!

About

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.

Highlights
  • 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
Features
Read full description

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

あと何日4 screens
ondot timer|No4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

あと何日 ships an update daily, ondot timer|No every 3 days. Both last shipped on October 24, 2026.

Scorecard4 real differences · 4 level
あと何日 versus ondot timer|No: the parameters behind the verdict, then further details
Parameterあと何日ondot timer|No
PriceFreeFree
Positive reviews0.0% of reviews83.3% of reviews — better
Update frequencyDaily — betterEvery 3 days
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS18.017.0 — better
Further details — not scored
Size49 MB3 MB
Age rating4+4+
DeveloperTakatoshi FukinoMomoka Shiramizu

Customer experience

あと何日

Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

ondot timer|No

Written reviews12 reviews
Positive83.3%
Neutral8.3%
Negative8.3%

In-app purchases

1 purchases

あと何日

One-time1
  • フルバージョン$1.99
None

ondot timer|No

No in-app purchases

Questions

Is あと何日 free?
あと何日 is free to download, with in-app purchases available.
Is ondot timer|No free?
ondot timer|No is free to download, with no in-app purchases.
Do あと何日 or ondot timer|No have ads?
あと何日 shows ads; ondot timer|No does not.
Which is updated more often, あと何日 or ondot timer|No?
あと何日 ships an update daily, and ondot timer|No every 3 days. Most recently, あと何日 was updated on October 24, 2026 and ondot timer|No on October 24, 2026.

Other comparisons