# Koyomi vs tsumune

The clearest difference is update cadence: Koyomi at every 5 weeks against tsumune's every 5 months. Koyomi also leads on device support (5 vs 3) and iOS requirement (9.0 vs 13.0). On price, ads and in-app purchases there is nothing between them.

Koyomi costs $1.99 and tsumune $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Koyomi ships an update every 5 weeks, tsumune every 5 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Koyomi | tsumune |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/koyomi/id926113841/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 18 MB | 27 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iWare Inc.](https://appshunter.io/developer/720005589) | [Kaoru Nishimura](https://appshunter.io/developer/1815862694) |

## What reviewers say

### Koyomi

[App page](https://appshunter.io/ios/app/koyomi/id926113841)

This app displays traditional Japanese calendars, including lunar phases, zodiac signs, and auspicious days. It integrates with your existing iOS calendar and offers features like printing and PDF sharing. Perfect for those who appreciate traditional calendrical information.

**Highlights:** Standard calendar import and display, Detailed Japanese calendar view (zodiac, lunar, etc.), Moon phase and age display, Calendar printing and PDF sharing, Widget support, Monthly/yearly/list calendar views, Sunrise and sunset times

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### tsumune

[App page](https://appshunter.io/ios/app/tsumune/id6747273757)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Koyomi free?

Koyomi costs $1.99, with no in-app purchases.

### Is tsumune free?

tsumune costs $1.99, with no in-app purchases.

### Do Koyomi or tsumune have ads?

Neither Koyomi nor tsumune shows ads.

### Which is updated more often, Koyomi or tsumune?

Koyomi ships an update every 5 weeks, and tsumune every 5 months. Most recently, Koyomi was updated on November 6, 2026 and tsumune on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*