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D-Day Calculator

By Geun Woo Kim

Calculate and manage your D-Days, anniversaries, and time alerts.

View Chrome Web Store

Time on the storeAbout 1 to 3 yearsA rough range, not an exact date

Store users30As shown on the Chrome Web Store

Chrome Web Store rating5.0 / 51 rating on the Chrome Web Store

Last store update21 Aug 2025Version 1.0, 14 months ago

Inside the extension

D-Day Calculator developer product preview 1

Product image 1 of 5

Reviews

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Permissions & access

Access levelLow

Asks only for everyday access, nothing we track as sensitive.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 3

Standard3

Save its own settingsstorage
Run tasks on a schedulealarms
Show desktop notificationsnotifications

Members also see when a new version asks for new access.

Website access 0

No website access beyond the tab you click it on.

Extension ID: piebllmlbgioonlgjlnbmlmgbfoladfe
Package size: 30.85KiB
Manifest: Version 3

The maker

Geun Woo Kim has 20 listings on the store. Most of their listings haven’t changed in over a year.

Listings: 20
Combined store users: ≈1K
Store Featured: 0
Updated in the last 90 days: 0 of 20

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CozyView – Eye Protector14 users · updated 14 months ago

Combined users can count the same person more than once. See all 20 listings

Ext Watch AI

Should you build in this niche?

One research report for D-Day Calculator. Reports come with Plus, Pro and Max.

Takeaway & demandCited takeaway and search volumes
Traffic & domainPopularity rank, visits and authority
Money & pricingPlans and prices from the maker’s site
ReviewsComplaints and praise, quoted
Competitors & ranksRank against the closest listings
Build opportunityWhat to build and how to position it

Every number shows its source and date
Ready in a minute or two
Report and PDF yours for 30 days