# 暦 Reki - Japanese Era Calendar

> Wareki&Western Date Converter

Canonical page: [https://chrome-stats.com/d/id6781997074](https://chrome-stats.com/d/id6781997074)

## Overview

- **ID:** `id6781997074`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** TOMONARI NATSUKAWA
- **Category:** Utilities
- **Version:** 1.0.1
- **Last updated:** 2026-08-10
- **First published:** 2026-06-21
- **Size:** 7.42 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/%E6%9A%A6-reki-japanese-era-calendar/id6781997074)
- **Website:** [https://natsukawa-tn.github.io/Reki-Pages/en/](https://natsukawa-tn.github.io/Reki-Pages/en/)
- **Privacy policy:** [https://natsukawa-tn.github.io/Reki-Pages/en/privacy.html](https://natsukawa-tn.github.io/Reki-Pages/en/privacy.html)

## Description

Now with the lunar calendar, moon phase, and lucky days (Tenshabi, Ichiryu-manbai-bi). Ask Siri for today's Japanese era date, or scan documents with camera.

「暦 Reki」is a simple and elegant app for converting between Japanese era dates (wareki) and the Western calendar.

【Features】

■ Today's Calendar
· Today's Japanese era date displayed prominently
· Rokuyou (traditional fortune calendar: Taian, Butsumetsu, etc.) with explanations
· Eto (Japanese zodiac) with emoji and name
· Current solar term and days until the next
· Lunar (old) calendar date shown alongside the Western date
· Moon phase with illumination % and moon age
· Lucky day banner for Tenshabi and Ichiryu-manbai-bi
· Countdown to year-end and next Japanese public holiday
· Year progress bar

■ Date Conversion & Lucky Day Lookup
· Instantly convert wareki ↔ Western dates
· Quick-input buttons for era names (Reiwa, Heisei, Showa, Taisho, Meiji)
· Camera OCR to scan era dates from documents (on-device processing)
· Voice input for hands-free date entry
· Conversion history saved automatically
· Look up the rokuyou and lucky-day status for any date — handy for picking a date for a wedding or move

■ Birth Year Lookup
· Enter a birth year to see the corresponding era, zodiac sign, and age

■ Siri Shortcuts
· Just ask "What's today's era date in Reki"
· Shortcuts for date conversion and deep links to each screen

■ Widgets
· Home screen widget showing today's Japanese era date, with a minimal "big number" style option
· Lock screen widget support, including a moon phase progress ring

■ Apple Watch
· View today's wareki, rokuyou, eto, and solar term on your Apple Watch
· Watch face complications (circular, rectangular, inline)
· Customizable theme colors

【Privacy】
Camera and microphone processing is done entirely on-device. No personal data collected, no ads, no third-party SDKs.

【Languages】
日本語 · English · 简体中文 · 繁體中文 · 한국어

Covers all modern Japanese eras: Reiwa (令和), Heisei (平成), Showa (昭和), Taisho (大正), and Meiji (明治).

## Rankings

- #1,857,992 — Overall

## Similar extensions and apps

- [Japanese Calendar Reiwa Widget](https://chrome-stats.com/d/id1562159407) — 5.00 / 5
- [Japanese Calendar Converter](https://chrome-stats.com/d/id1460550714) — 4.50 / 5
- [Showa100](https://chrome-stats.com/d/id1579491974)
- [Koyomi | Japanese year checker](https://chrome-stats.com/d/id1620479221)
- [W/J Calendar Convert 履歴書 西暦 和暦](https://chrome-stats.com/d/id6756016866)
- [Japanese Era](https://chrome-stats.com/d/id6747539110)
- [Reiwa Widget](https://chrome-stats.com/d/id1203171804) — 5.00 / 5
- [Chrono Rainbow](https://chrome-stats.com/d/id6739449092)
- [Era Converter](https://chrome-stats.com/d/id6737445007) — 5.00 / 5
- [こよみ日和](https://chrome-stats.com/d/id6758432776)
- [JpYear Japanese Year](https://chrome-stats.com/d/id1241864962)
- [Hinokoto Japanese Era](https://chrome-stats.com/d/id1593393262)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6781997074)