Comparison

年号電卓Plus vs x123 (xリンク)

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

Head to head
About

年号電卓Plus

Easily convert between Western and Japanese eras, and determine birth years from age. Explore historical context with explanations for era changes and significant events of each year.

Highlights
  • Western to Japanese era conversion
  • Japanese era to Western conversion
  • Calculate birth year from age
  • View era start and end dates
  • Understand reasons for era changes
  • Discover major events of each year
Features
Read full description

年号・元号の変換に迷ったら、このアプリひとつで解決! 待望の西暦和暦早見表に対応しました! 西暦⇔和暦の変換から、年齢での誕生年検索まで、日常のちょっとした疑問をすばやく解消できます。 さらに Apple Watch に対応! 手首でサッと確認できるようになりました。 調べるだけでなく、改元の理由やその年の主な出来事もわかるので、歴史の勉強や雑学としても楽しめます。 【変換モード】 ・西暦 → 和暦(令和・平成・昭和・大正・明治) ・各元号 → 西暦 ・年齢 → 西暦・和暦(誕生年を逆算) 【詳細情報】 ・各元号の開始年・終了年を表示 ・改元の理由(iPhone版のみ) ・その年の主な出来事 ※Apple Watch版では改元理由の表示はありません。 【iPhone版・Apple Watch版の違い】 ・iPhone版は西暦和暦早見表に対応。 ・iPhone版はテンキー入力に対応。和暦の上限を超えた年(例:大正16年)をそのまま入力・表示しながら、西暦や次の元号への変換結果を確認できます。 ・Apple Watch版はテンキー入力の代わりにカウント操作を採用。和暦の上限に達すると自動的に次の元号へ切り替わるため、直感的に操作できます(例:大正15年の次は自動で昭和2年に)。 【Apple Watch版の操作】 ・上にスワイプすることで、年齢・各元号の開始年/終了年・その年の主な出来事をまとめて確認できます。 ・+/-ボタンの長押しで高速カウントアップ/カウントダウンが可能。目的の年にすばやくたどり着けます。

About

x123 (xリンク)

Features
Read full description

◎How to use x-link After installing the app, register from "Enter a number!" on the top page, pick a number, and simply set or edit where it links to. The beta version offers 4-, 5-, 6-, 7- and 8-digit numbers free of charge. ◎Handy use cases (Marketing / PR / Business) - Guide people to links by voice from podcasts and short social videos - Collect live survey responses and guide viewers to product pages during live streams - Reach the right website from radio or in-facility audio announcements - For moments when scanning a QR code on a train or in public feels awkward - Make OMO and O2O more convenient for tourist spots, towns and shopping facilities (Personal) - Works like a business card With x-link, even if the services you use shut down, you can point your number to new web content and always share the information you want to show. - Great for member lists Get your own number as a roster for classmates and teammates! Everyone can permanently check just the pages each member wants to show. https://x123.link/about_x-link.html Get your number and set its link destination here: https://member.x123.link/

Screenshots

年号電卓Plus4 screens
x123 (xリンク)3 screens

Verdict

The call

The clearest difference is update cadence: x123 (xリンク) at every 2 days against 年号電卓Plus's every 6 weeks. x123 (xリンク) also leads on iOS requirement (15.6 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

年号電卓Plus ships an update every 6 weeks, x123 (xリンク) every 2 days. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 6 level
年号電卓Plus versus x123 (xリンク): the parameters behind the verdict, then further details
Parameter年号電卓Plusx123 (xリンク)
PriceFreeFree
Positive reviews37.5% of reviews—
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size7 MB4 MB
Age rating4+4+
DeveloperNakanishi ToshihikoFULLDRIVE K.K.

In-app purchases

None

年号電卓Plus

No in-app purchases

None

x123 (xリンク)

No in-app purchases

Questions

Is 年号電卓Plus free?
年号電卓Plus is free to download, with no in-app purchases.
Is x123 (xリンク) free?
x123 (xリンク) is free to download, with no in-app purchases.
Do 年号電卓Plus or x123 (xリンク) have ads?
Neither 年号電卓Plus nor x123 (xリンク) shows ads.
Which is updated more often, 年号電卓Plus or x123 (xリンク)?
年号電卓Plus ships an update every 6 weeks, and x123 (xリンク) every 2 days. Most recently, 年号電卓Plus was updated on October 12, 2026 and x123 (xリンク) on October 7, 2026.

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