# Nixie時計０ vs Koyomi

The clearest difference is review sentiment: Koyomi at 58% against Nixie時計０'s 0%. Koyomi also leads on update cadence (every 5 weeks vs every 22 months) and device support (5 vs 2). Nixie時計０'s advantage is price ($0.99 vs $1.99). On ads and in-app purchases there is nothing between them.

Nixie時計０ costs $0.99 and Koyomi $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Nixie時計０ ships an update every 22 months, Koyomi every 5 weeks. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Nixie時計０ | Koyomi |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/koyomi/id926113841/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | **58.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 18 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Tetsuya Morikawa](https://appshunter.io/developer/728393868) | [iWare Inc.](https://appshunter.io/developer/720005589) |

## What reviewers say

### Nixie時計０

[App page](https://appshunter.io/ios/app/nixie/id870118824)

A retro-style clock app featuring Nixie tube-inspired displays for year, hour, minute, and second. It also includes an angle meter function for added utility.

**Highlights:** Nixie tube-style display, Year, hour, minute, second display, Angle meter function, Retro aesthetic

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Nixie時計０ free?

Nixie時計０ costs $0.99, with no in-app purchases.

### Is Koyomi free?

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

### Do Nixie時計０ or Koyomi have ads?

Neither Nixie時計０ nor Koyomi shows ads.

### Which is updated more often, Nixie時計０ or Koyomi?

Nixie時計０ ships an update every 22 months, and Koyomi every 5 weeks. Most recently, Nixie時計０ was updated on October 9, 2026 and Koyomi on October 19, 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.*