Comparison

DAYBOX vs Simple D

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DAYBOX

Track important dates with a stylish and user-friendly interface. Easily register and manage events like weddings, exams, and appointments. Customize your countdowns with personal photos and adjustable text sizes for a personalized experience.

Highlights
  • Stylish D-day design
  • Easy schedule registration
  • Customizable screen configurations
  • Save snapshot with date inscription
  • Adjustable text size
  • Widget list support
  • Push notification for agenda
Features
Read full description

"We make things for your stylish life." # Design “D-DAY with sensibility” : Design is implemented with high quality UX design by NOTEGG # Function “Easy and simple operation” : You can easily register your schedule and list management. : You can be custom screen configurations with your photo. : The Save Snapshot feature is available with date inscription. : 3 Step adjustable text size : Tutorial review is also available. : Widget list is available. : Also 3d touch is available. : Agenda provides a push notification function. # Purpose “Anywhere and Anytime” : It’s easier to register and manage wedding, examination, appointment dates, D-Day, and various events.

About

Simple D

Features
Read full description

Hello, I'm happy to introduce a lightweight and easy-to-use D-Day app. * Countdowns Set the time for your D-Day and easily check the remaining or elapsed time. The time is calculated and displayed in multiple formats (months, weeks, days, hours, etc.). * Anniversaries Set anniversaries and check dates related to your D-Day. You can also use it like a date calculator. * Memos You can create memos related to your D-Days. The date and time are recorded with your memos. It is recommended when you want to keep tracking on your schedules, or keep the records of them. * Notifications Schedule notifications for your D-Days. You can schedule multiple reminders and write whatever message you'd like. You'll receive push notifications at your set times. Thank you. Developer Contact: kim.beeefriends@gmail.com

Screenshots

DAYBOX4 screens
Simple D4 screens

Verdict

The call

The clearest difference is update cadence: DAYBOX at every 5 days against Simple D's every 3 weeks. Simple D's advantage is iOS requirement (15.0 vs 17.6). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DAYBOX sells 2 one-off in-app purchases and Simple D sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DAYBOX ships an update every 5 days, Simple D every 3 weeks. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
DAYBOX versus Simple D: the parameters behind the verdict, then further details
ParameterDAYBOXSimple D
PriceFreeFree
Rating4.8 (200 ratings) — better—
Positive reviews74.7% of reviews—
Number of ratings200 — better—
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size28 MB48 MB
Age rating4+4+
DeveloperNOTEGG Corp.beeefriends

In-app purchases

2 purchases

DAYBOX

One-time2
  • Supporting NOTEGG in DAYBOX$0.99
  • removal ads item$0.99
1 purchases

Simple D

One-time1
  • Remove ads$6.99

Questions

Is DAYBOX free?
DAYBOX is free to download, with in-app purchases available.
Is Simple D free?
Simple D is free to download, with in-app purchases available.
Do DAYBOX or Simple D have ads?
Both DAYBOX and Simple D show ads.
Which is updated more often, DAYBOX or Simple D?
DAYBOX ships an update every 5 days, and Simple D every 3 weeks. Most recently, DAYBOX was updated on October 26, 2026 and Simple D on October 7, 2026.

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