Comparison

和暦計算 vs Data Display

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

Head to head
About

和暦計算

Features
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あの頃は何歳? 申請書、履歴書の記入時に和暦・西暦が出てこない。そんな時に便利です。 今日は大安! 本日の六曜、干支、十二支も表示します。 ●簡単操作の年号計算機です。 ・令和、平成、昭和、大正、明治、西暦をまたがった計算  ・平成?西暦? 両方表示します  申込書等の記入日が平成だったり西暦だったりでも大丈夫 ・元号記載の書類を調べるときに ●計算例 今年の年 ー 誕生年 = 年齢 例:令和1年 - 昭和60年 = 34年 計算の組み合わせは、4パターン。 1) 年 - 年 = 年数 2) 年 +/- 数字 = 西暦・和暦 3) 年  = 西暦・和暦 4) 数字 +/- 数字 = 数 ●利用場面 ・ あの頃は何歳だったのかなと調べたいとき ・ 20歳の頃は何年だったのかなと調べたいとき ・ 履歴書の作成。自分史の振り返り。この会社に何年勤めた? ・ 年金の計算。年と月で。 ・ 西暦と和暦のざっくり対比。この時代は日本では何時代だ? ・ 今年で何歳だったっけ? ・ 卒業する年は平成の何年だ? ・ 次のオリンピックの時は何歳になっている?

About

Data Display

Read full description

Data Display Organize and view all kinds of data from your iPhone or iPad at a glance! The core features are free to use, and with a subscription or an Apple Music account, you can also display weather and music information directly on the screen. Key Features • Create multiple screens and switch between them with a simple tap • Automatically adjusts the display for portrait and landscape orientations • Show or hide items on each screen for a personalized layout • Sensor and location data are regularly updated to provide the latest information • Quickly switch screens to access the data you need • Weather information is available with an in-app subscription • Music information requires an active Apple Music subscription Basic Usage • Tap the “List” tab • Tap the “+” button to add a new item, or tap an existing item to edit • Set the name and icon on the item’s detail screen • Choose the number of rows and columns to display on “Main1–3” screens • Select which items to show from the category list and turn off the ones you don’t want • Changes are automatically saved when you return to the main screen Main Data You Can Display • System Information: Battery level, date/time, display mode (Light/Dark/Auto), device orientation, voice guidance, network status, brightness, memory usage, etc. • Location Information: Latitude/longitude, speed, altitude, heading, reverse geocoding, GPS elapsed time, graph display, etc. • Weather Information (subscription required): Temperature, humidity, rainfall, sunrise/sunset times, forecast, wind speed/direction, sunlight level, etc. • Route Guidance: Multiple destinations, estimated arrival times, route selection, highways/toll roads, Apple Maps integration, voice guidance, etc. • Map Display: Current or custom location maps, standard/satellite/hybrid views, zoom, north-fixed orientation, route target display, etc. • Music Information (Apple Music required): Title, album, artist, playback status, cover art, play/pause/skip controls, shuffle registration from recently added Apple Music tracks, etc. Recommended For • Users who want to organize all their iPhone/iPad data on a single screen • Users who need to view multiple types of data simultaneously • Users who want a fully customizable information display • Users who want to combine weather or music information with other data Note: If you upgrade to a higher subscription plan, any requests you have already used during the current month will count toward the new plan's monthly limit. Requires iOS 17.6 or later. Terms of Use (EULA): https://masakiapp.seesaa.net/article/EULA.html

Screenshots

和暦計算3 screens
Data Display4 screens

Verdict

The call

The clearest difference is in-app purchases: 和暦計算 at none against Data Display's 3. Data Display's advantage is ads (none vs shown) and update cadence (weekly vs every 6 months). 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. Data Display sells 3 in-app purchases, starting at $0.49 per month. 和暦計算 asks for nothing beyond the download.

UpkeepUpdate frequency

和暦計算 ships an update every 6 months, Data Display weekly. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 4 level
和暦計算 versus Data Display: the parameters behind the verdict, then further details
Parameter和暦計算Data Display
PriceFreeFree
Positive reviews66.7% of reviews—
Update frequencyEvery 6 monthsWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 — better18.6
Further details — not scored
Size7 MB6 MB
Age rating4+4+
DeveloperTakashi Shinyashikimasaki individual

In-app purchases

None

和暦計算

No in-app purchases

3 purchases

Data Display

Subscriptions3
  • 10,000 Monthly Requests7 Days trial$0.491 Month
  • 20,000 Monthly Requests3 Days trial$3.991 Month
  • 30,000 Monthly Requests3 Days trial$5.991 Month

Questions

Is 和暦計算 free?
和暦計算 is free to download, with no in-app purchases.
Is Data Display free?
Data Display is free to download, with in-app purchases available.
Do 和暦計算 or Data Display have ads?
和暦計算 shows ads; Data Display does not.
Which is updated more often, 和暦計算 or Data Display?
和暦計算 ships an update every 6 months, and Data Display weekly. Most recently, 和暦計算 was updated on October 9, 2026 and Data Display on October 11, 2026.

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