# eRokuyo vs Third inc.

The clearest difference is price: Third inc. at Free against eRokuyo's $0.99. eRokuyo's advantage is update cadence (every 5 months vs every 51 months) and iOS requirement (11.0 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

Third inc. is free to download; eRokuyo costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

eRokuyo ships an update every 5 months, Third inc. every 51 months. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | eRokuyo | Third inc. |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/erokuyo/id317326543/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 51 months |
| Monetization | Paid | — |
| Size | 14 MB | 71 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Microtech Corp.](https://appshunter.io/developer/293806300) | [Third inc.](https://appshunter.io/developer/1631507528) |

## What reviewers say

### eRokuyo

[App page](https://appshunter.io/ios/app/erokuyo/id317326543)

This app provides a traditional Japanese calendar with detailed daily information, including holidays, lunar cycles, and auspicious days for important events. It supports up to 2030 and offers customization options for display and background colors.

**Highlights:** Traditional Japanese calendar display, Detailed daily information, Holiday and event tracking, Lunar cycle information, Customizable background colors, Stamp functionality for daily notes

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

**In-app purchases:** none


### Third inc.

[App page](https://appshunter.io/ios/app/third-inc/id1631507526)

**In-app purchases:** none


## Frequently asked questions

### Is eRokuyo free?

eRokuyo costs $0.99, with no in-app purchases.

### Is Third inc. free?

Third inc. is free to download, with no in-app purchases.

### Do eRokuyo or Third inc. have ads?

Neither eRokuyo nor Third inc. shows ads.

### Which is updated more often, eRokuyo or Third inc.?

eRokuyo ships an update every 5 months, and Third inc. every 51 months. Most recently, eRokuyo was updated on October 10, 2026 and Third inc. on October 6, 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.*