# Rokuyo Calendar vs GrainCOM Events

The clearest difference is in-app purchases: GrainCOM Events at none against Rokuyo Calendar's 1. GrainCOM Events also leads on ads (none vs shown). Rokuyo Calendar's advantage is update cadence (every 11 days vs every 7 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Rokuyo Calendar sells 1 in-app purchase, starting at $0.99 per month. GrainCOM Events asks for nothing beyond the download.

Rokuyo Calendar ships an update every 11 days, GrainCOM Events every 7 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Rokuyo Calendar | GrainCOM Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/rokuyo-calendar/id6736388031/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 65 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [MOSHIMORE](https://appshunter.io/developer/1750585147) | [Invent-App](https://appshunter.io/developer/1437267222) |

## What reviewers say

### Rokuyo Calendar

[App page](https://appshunter.io/ios/app/rokuyo-calendar/id6736388031)

This app provides a straightforward display of Rokuyo, a traditional Japanese calendar system indicating daily luck. It allows users to highlight specific Rokuyo days, view past and future dates, and access detailed explanations of each day's meaning. The interface is designed for simplicity and ease of use.

**Highlights:** Intuitive Rokuyo display, Highlight specific Rokuyo days, View past and future dates (1950-2029), Detailed Rokuyo explanations, Customizable display styles

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly Subscription | $0.99 | per month |


### GrainCOM Events

[App page](https://appshunter.io/ios/app/graincom-events/id6743443496)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rokuyo Calendar free?

Rokuyo Calendar is free to download, with in-app purchases available.

### Is GrainCOM Events free?

GrainCOM Events is free to download, with no in-app purchases.

### Do Rokuyo Calendar or GrainCOM Events have ads?

Rokuyo Calendar shows ads; GrainCOM Events does not.

### Which is updated more often, Rokuyo Calendar or GrainCOM Events?

Rokuyo Calendar ships an update every 11 days, and GrainCOM Events every 7 months. Most recently, Rokuyo Calendar was updated on November 4, 2026 and GrainCOM Events 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.*