Report updated May 9, 2026

Overview · Full Intel report in progress

Koyomi is an established lifestyle app that is a paid app. With a 5.0/5 rating from 2 reviews, it shows polarized user reception.

What is Koyomi?

Koyomi is a specialized calendar utility that integrates traditional Japanese almanac data, such as Rokuyo, zodiac signs, and lunar phases, with standard iOS calendar events. It provides users with tools to check auspicious dates for events while offering practical features like PDF sharing, printing, and widget support. The app is notable for its comprehensive coverage of traditional calendar metrics alongside modern scheduling functionality.

Current Momentum

v1.7

No release notes available.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Lifestyle

No ranking data

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

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What Are The Key Features?

Traditional Calendar IntegrationStandard

Displays detailed Japanese calendar data including Rokuyo, zodiac signs, lunar phases, and twenty-four solar terms.

iOS Calendar SyncStandard

Reads and displays standard iOS calendar events alongside traditional almanac information.

Export and SharingStandard

Supports calendar printing, PDF generation for sharing, and integration with the 'Roluto' printing service.

Cross-Platform SupportStandard

Includes widget support for the Today view and compatibility with watchOS.

How much does it cost?

Paid

Who Built It?

iWare Inc. app icon 1
iWare Inc. app icon 2
iWare Inc. app icon 3
iWare Inc. app icon 4

iWare

(163)

Providing specialized printing and device control utilities for iOS users. Enabling direct document and label management beyond standard AirPrint limitations.

Portfolio

11

Apps

Free 6Paid 4
Utilities70%
Productivity10%
Lifestyle10%

Explore the full iWare report

Portfolio breakdown, audience, momentum, and every app published by iWare.

Go deeper

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

View the full user-sentiment analysis

Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.

Go deeper

Analysis in progress, available soon

What is the competitive landscape for Koyomi?

How's The Lifestyle Market?

How does it evolve in the Lifestyle market?

Rank progression

1 active ranking tracked — 30-day window

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for Koyomi

Key Takeaways

Koyomi bridges the gap between modern digital scheduling and traditional Japanese calendar customs in a single, portable interface.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Koyomi, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Koyomi Intelligence Report.” Updated May 9, 2026. https://marlvel.ai/apps/koyomi

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