# atsumeru vs OshiEventCalender

The clearest difference is ads: atsumeru at none against OshiEventCalender's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. atsumeru sells 4 one-off in-app purchases and OshiEventCalender sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

atsumeru ships an update every 3 days, OshiEventCalender every 5 days. Both last shipped on October 14, 2026.

## The numbers

| Metric | atsumeru | OshiEventCalender |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 5 days |
| Size | 4 MB | 13 MB |
| Requires iOS | 18.5 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ASAHI MIZUTANI](https://appshunter.io/developer/1825777520) | [TN-House](https://appshunter.io/developer/1886995196) |

## What reviewers say

### atsumeru

[App page](https://appshunter.io/ios/app/atsumeru/id6748431704)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| クレジット５枚セット | $0.49 | one-time |
| クレジット１０枚セット | $0.99 | one-time |
| タグ絞り込み機能 | $1.99 | one-time |
| クレジット１００枚セット | $5.99 | one-time |


### OshiEventCalender

[App page](https://appshunter.io/ios/app/oshieventcalender/id6760954162)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Plan | $0.99 | per month |
| Lifetime Premium Access | $24.99 | one-time |


## Frequently asked questions

### Is atsumeru free?

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

### Is OshiEventCalender free?

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

### Do atsumeru or OshiEventCalender have ads?

OshiEventCalender shows ads; atsumeru does not.

### Which is updated more often, atsumeru or OshiEventCalender?

atsumeru ships an update every 3 days, and OshiEventCalender every 5 days. Most recently, atsumeru was updated on October 14, 2026 and OshiEventCalender on October 14, 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.*