# Koyomi (Calendar) vs Sidekick

The clearest difference is in-app purchases: Koyomi (Calendar) at none against Sidekick's 1. Koyomi (Calendar) also leads on iOS requirement (16.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Sidekick sells 1 one-off in-app purchase. Koyomi (Calendar) asks for nothing beyond the download.

## The numbers

| Metric | Koyomi (Calendar) | Sidekick |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 2 MB | 4 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kouichi Abe](https://appshunter.io/developer/295852950) | [Takashi Arai](https://appshunter.io/developer/1896489498) |

## What reviewers say

### Koyomi (Calendar)

[App page](https://appshunter.io/ios/app/koyomi-calendar/id1105884989)

This simple calendar app displays three months at a time, along with an annual view. Easily navigate between months and years with intuitive scrolling gestures. It offers a straightforward yet highly useful way to manage your schedule.

**Highlights:** Three-month calendar view, Annual calendar view, Intuitive scrolling navigation, Simple and useful interface

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

**In-app purchases:** none


### Sidekick

[App page](https://appshunter.io/ios/app/sidekick/id6769478096)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 完全版アンロック | $2.99 | one-time |


## Frequently asked questions

### Is Koyomi (Calendar) free?

Koyomi (Calendar) is free to download, with no in-app purchases.

### Is Sidekick free?

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

### Do Koyomi (Calendar) or Sidekick have ads?

Neither Koyomi (Calendar) nor Sidekick shows ads.

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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.*