Comparison

Date and Time Checker vs memomo(メモモ)

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

Head to head
About

Date and Time Checker

Easily calculate elapsed time, dates, and durations with multiple calculation formats. Save your results as a history for quick reference. Ideal for tracking work hours, travel time, or significant dates.

Highlights
  • Calculate elapsed time (hours, minutes, seconds)
  • Calculate elapsed dates (days, weeks, months, years)
  • Add or subtract time/dates
  • Set alert notifications for calculated times/dates
  • Save calculation results as history
  • Option to include/exclude first day in date calculations
Features
Read full description

"Date and Time Checker" is an application that can easily calculate the date, number of days, time, etc.Multiple calculation formats are available for various applications. The following calculation formats are available. 1. "End time - Start time" 2. "Specified time ± Elapsed time" 3. "End date - Start date" 4. "Specified date ± Elapsed date" 1. "End time - Start time" Calculate the elapsed time from the start time to the end time (hour / minute / second, etc.). It is also possible to exclude any time (minutes). 2. "Specified time ± Elapsed time" Calculate the elapsed time (later / ago) from the specified time. It is also possible to receive an alert notification at the calculated time. 3. "End date - Start date" Calculate the elapsed days (days / weeks / months / years, etc.) from the start date to the end date. You can choose to calculate the first day as 0 day or 1 day. 4. "Specified date ± Elapsed date" Calculate the elapsed date (later / ago) from the specified date. It is also possible to receive an alert notification on the calculated date. You can save the calculation results and check them as a history. 【Use cases of Date and Time Checker】 ・ Calculation of working hours ・ Calculation of overtime hours ・ Calculation of sleep time ・ Calculation of possible stay time ・ Calculation of work time ・ Calculation of waiting time ・ Back calculation of departure time ・ Calculation of travel time ・ Calculation of end time of abandoned game ・ Check how many days have passed since you were born ・ Calculate how many years have passed since you purchased ・etc Use the Date and Time Checker to quickly check the cumbersome date and days calculations.

About

memomo(メモモ)

Features
Read full description

お店に行って買い物する際にメモについてストレスを感じたことはありませんか? 書いたメモが陳列順に並んでいないためにお店の中を行ったり来たりして面倒 買い物をしながらメモのチェックがしにくい 買い物メモのどの商品をチェックしたのかわかりにくい 買い物メモを家族や友達にシェアしにくい など memomo使うと、いままでの煩わしい買い物体験をちょっとだけ快適にできるかもしれません。 memomoにはシンプルな操作性と必要最低限の機能が備わっています。 主な提供価値は次のとおりです。 ・タグで並べ替え 商品をタグごとに並び替えできます。タグの並び順は自由にカスタマイズできるので、よく行くお店の陳列順を登録しておくこともできます。 ・タグ設定補助 同じ名前の商品が登録済みの場合、新しく追加した商品にはタグが自動で付与されます。商品追加のたびにタグを設定する必要はありません。 ・複数商品の一括登録 一度に複数行の商品を入力することができます。チャットやメールで送られた商品のリストを簡単に取り込むことも可能です。 ・商品一覧のコピー 登録した商品の一覧を簡単な操作でテキストにコピーすることができます。コピーしたテキストをチャットやメールで送れば、ご家族やお友達に簡単にシェアすることが可能です。

Screenshots

Date and Time Checker4 screens
memomo(メモモ)4 screens

Verdict

The call

The clearest difference is in-app purchases: memomo(メモモ) at none against Date and Time Checker's 2. memomo(メモモ) also leads on ads (none vs shown) and device support (3 vs 1). Date and Time Checker's advantage is update cadence (every 3 months vs every 7 months). On price 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. Date and Time Checker sells 2 one-off in-app purchases. memomo(メモモ) asks for nothing beyond the download.

UpkeepUpdate frequency

Date and Time Checker ships an update every 3 months, memomo(メモモ) every 7 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
Date and Time Checker versus memomo(メモモ): the parameters behind the verdict, then further details
ParameterDate and Time Checkermemomo(メモモ)
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 months — betterEvery 7 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.012.0 — better
Further details — not scored
Size29 MB30 MB
Age rating4+4+
Developermitsuhiro naraMasayoshi Kishida

In-app purchases

2 purchases

Date and Time Checker

One-time2
  • Remove Ads$3.99
  • Export to File$3.99
None

memomo(メモモ)

No in-app purchases

Questions

Is Date and Time Checker free?
Date and Time Checker is free to download, with in-app purchases available.
Is memomo(メモモ) free?
memomo(メモモ) is free to download, with no in-app purchases.
Do Date and Time Checker or memomo(メモモ) have ads?
Date and Time Checker shows ads; memomo(メモモ) does not.
Which is updated more often, Date and Time Checker or memomo(メモモ)?
Date and Time Checker ships an update every 3 months, and memomo(メモモ) every 7 months. Most recently, Date and Time Checker was updated on October 17, 2026 and memomo(メモモ) on October 13, 2026.

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