# Delkoku - Leave-By Alarm — Count back from arrival time

> Count back from arrival time (iPhone/iPad app by 丽佳 施.)

- Source: https://appshunter.io/ios/app/delkoku-leave-by-alarm/id6796785678 (this page in markdown: same URL + `.md`)
- Developer: [丽佳 施](https://appshunter.io/developer/1894580777)
- Category: Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English, Japanese
- Released: 2026-08-06
- Data updated: 2026-10-16

## What is Delkoku?

"Just five more minutes" is the killer. Suddenly, your leave-by time is already gone.

Delkoku is an anti-lateness alarm: enter when you want to arrive, and it automatically counts back to
- when you should leave home, and
- when you should start getting ready.

■ Staged alarms stop time-blindness
Start prep → 10 minutes out → 5 minutes → leave now!
The classic multi-stage alarm technique loved by people with ADHD and anyone with a slippery sense of time, set with one tap. Alarms ring even while the app is open.

■ Delkoku does the math, you just get ready
Enter arrival time, travel time, prep time, and a safety buffer - the back-calculation is automatic. Save your frequent places and travel time from your current location is computed in one tap (train, car, walking).

■ Departure countdown
A big ring on the home screen counts down to departure every second. Tap "I left!" to stamp the moment.

■ A track record builds the habit
On-time departure rate, consecutive on-time streak, and a 14-day chart. Not to scold you - to stack up the days you made it.

■ Privacy first
Events, places, and records stay on your device. Nothing is sent to a server. Location is used only to compute travel time.

■ Everything is free
Unlimited places and events. Back-calculation, staged alarms, and stats are all free. The bottom banner ad can be hidden forever with a one-time "Remove Ads" purchase ($0.99, no auto-renewal). No subscriptions.

For the days you absolutely cannot be late - go with Delkoku.

Note: This app is not a medical device. It is not intended to diagnose, treat, or prevent ADHD or any condition, and is no substitute for medical advice.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Is Delkoku safe?

Not enough ratings yet to assess Delkoku.

## Is Delkoku legit?

Delkoku - Leave-By Alarm appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Delkoku is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-08-06

No release notes.

## Apps similar to Delkoku

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [OHAYO - 朝の出発サポート](https://appshunter.io/ios/app/ohayo/id6781504874) | — | Free | Lifestyle |
| [Stacky - 習慣化トラッカー](https://appshunter.io/ios/app/stacky/id6759818275) | — | Free | Lifestyle |
| [やること -今日-](https://appshunter.io/ios/app/id1575516351) | — | Free | Lifestyle |
| [mutalk 2](https://appshunter.io/ios/app/mutalk-2/id6502754013) | 4.0 (1) | Free | Lifestyle |
| [Habit Tracker: HabitsLab](https://appshunter.io/ios/app/habit-tracker-habitslab/id6745717349) | — | Free | Lifestyle |
| [ShareTodo w/ family & friends](https://appshunter.io/ios/app/sharetodo-w-family-and-friends/id1540403297) | 5.0 (1) | Free | Lifestyle |

## More apps by 丽佳 施

- [Bolt Brigade: Tank Battle](https://appshunter.io/ios/app/bolt-brigade-tank-battle/id6769092885)
- [童童的萌宠面包房·小学数学口算](https://appshunter.io/ios/app/id6769093315)
- [Stack Tower Up](https://appshunter.io/ios/app/stack-tower-up/id6769321760)
- [Pomotown - Focus Timer](https://appshunter.io/ios/app/pomotown-focus-timer/id6769728830)
- [Lensage: Astro & Photo Planner](https://appshunter.io/ios/app/lensage-astro-and-photo-planner/id6769730141)
- [Ember — Private Diary](https://appshunter.io/ios/app/ember-private-diary/id6769777961)

All apps by 丽佳 施: https://appshunter.io/developer/1894580777

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-16.*