# atsumeru vs カレタス

The clearest difference is ads: atsumeru at none against カレタス's shown. atsumeru also leads on update cadence (every 3 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. atsumeru sells 4 one-off in-app purchases and カレタス 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, カレタス every 2 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | atsumeru | カレタス |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 8 MB |
| Requires iOS | 18.5 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ASAHI MIZUTANI](https://appshunter.io/developer/1825777520) | [Ryota Yashima](https://appshunter.io/developer/1845144176) |

## 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 |


### カレタス

[App page](https://appshunter.io/ios/app/id6758593977)

Manage your schedule and to-do list in one place with a unified calendar view. See upcoming events and tasks simultaneously, customize the look with themes, and get quick access via widgets. Integrates with other calendars and offers powerful filtering options.

**Highlights:** Unified event and task management, Monthly, weekly, and daily views, Home screen widgets, Customizable themes, Tag and filter functionality, Integration with other calendars, iCloud backup

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム（月額） | $0.99 | per month |
| プレミアム（年額） | $9.99 | per year |


## Frequently asked questions

### Is atsumeru free?

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

### Is カレタス free?

カレタス is free to download, with in-app purchases available.

### Do atsumeru or カレタス have ads?

カレタス shows ads; atsumeru does not.

### Which is updated more often, atsumeru or カレタス?

atsumeru ships an update every 3 days, and カレタス every 2 weeks. Most recently, atsumeru was updated on October 28, 2026 and カレタス on October 28, 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.*