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.
和暦計算
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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?
Data Display
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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
Verdict
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
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.
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.
| Parameter | 和暦計算 | Data Display |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| Update frequency | Every 6 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 7 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Takashi Shinyashiki | masaki individual |
In-app purchases
和暦計算
No in-app purchases
Data Display
- 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









