# ToDo Calendar Pro — Reminders, To-Do List & Tasks

> Calendar-based task manager with iCloud sync and file attachments. (iPhone/iPad app by NAOAKI SEKIGUCHI.)

- Source: https://appshunter.io/ios/app/todo-calendar-pro/id1485076112 (this page in markdown: same URL + `.md`)
- Developer: [NAOAKI SEKIGUCHI](https://appshunter.io/developer/1146328819)
- Category: Productivity, Business
- Price: Free with in-app purchases
- Rating: 4.20/5 from 5 App Store ratings · 10 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.0 · 28 MB
- Languages: American English, French (France), German (Germany), Japanese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Hong Kong SAR China)
- Released: 2020-08-20
- Data updated: 2026-08-13
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/todo-calendar-pro/id1485076112/reviews.md

## What is ToDo Calendar Pro?

Would you like to make your smartphone or tablet PC into a useful business tool? 
ToDo Calendar Pro is an application to manage your tasks efficiently using a calendar. 
The calendar shows you an overview of what tasks are due to be performed and when. 
Tasks are synced to all your devices through iCloud, so you can manage your tasks anytime, anywhere. 
You can also automatically register tasks to iOS Calendar, iOS Reminder and Google Calendar.


ToDo Calendar Pro functions

1. Registering tasks
First, let's register your tasks. 
By setting a scheduled start date and scheduled end date, you will be able to complete your tasks on time. 
You can fill in detailed information and attach photos, videos, Excel, Word or other files and maps in the tasks.
Tasks can also be further divided into sub-tasks.


2. Registering tasks using a template
By using pre-registered templates, you can easily register tasks.
You can customize the template any way you like.

3. Managing tasks in a calendar
You can see your tasks in the calendar.
The calendar allows you to see which tasks will be performed when.

4. Managing tasks in a list
You can also see the tasks in a list.
You can see what tasks are currently being performed, what tasks have been completed, and what tasks will be performed in the future.

5. Organizing tasks in groups
If you set up groups for tasks, you can view tasks by group in a calendar or a list.
You can customize groups any way you like.

6. Task notifications
You can specify the tasks to be notified at the scheduled start date and time or at a specified date and time.
With notifications, you'll never forget an important task.

7. Linking iOS Calendar, iOS Reminder and Google Calendar
You can set up your tasks to work with iOS Calendar, iOS Reminder, and Google Calendar, so they can be registered to iOS Calendar, iOS Reminder, and Google Calendar.

8. Viewing today’s tasks on Apple Watch
You can see a list of tasks to be performed today on your Apple Watch.
You can also mark completed tasks as completed.

## Key features

- Calendar task overview
- iCloud task synchronization
- File and photo attachments
- Sub-task creation
- Template-based task registration
- Integration with iOS Calendar and Google Calendar
- Apple Watch task viewing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ToDo Calendar Pro License | $1.99 | one-time |


## Recent user reviews (10 of 10)

All indexed reviews: https://appshunter.io/ios/app/todo-calendar-pro/id1485076112/reviews.md

### 1/5 — ストレージが

*2026-02-11*

かなり使ってる、なぜ？

### 1/5 — 動画が再生できません

*2024-05-12*

突然、動画がほとんど再生できなくなりました。改善お願いします

### 3/5 — 改善

*2024-05-11*

リワードの動画が再生されないので改善お願いいたします。

### 1/5 — 広告動画

*2023-01-24*

これってカレンダーアプリだよな？タスクを登録するたびに広告動画を強制再生って何よ。使いにくくってしょうがねえよ。少しは使い勝手を考えて設計してみたらどうよ。

### 1/5 — 広告だらけ

*2022-05-27*

まず画面の半分を広告が占めてます。
アプリイーストール後の起動した瞬間にソシャゲの広告ムービーが流れます。
ここまでヤバイアプリは初めてです。

### 2/5 — 改悪

*2022-02-10*

アップデートしたら余計な広告が増えました。

### 1/5 — Googleカレンダーとの同期

*2021-09-04*

私もGoogle カレンダーと同期されず困っています。

### 1/5 — 修正希望

*2021-03-23*

2021.3.23
ここ数日動きませんけど

**Developer response:** このたびはご迷惑をおかけし申し訳ありません。
3月26日にVer3.8をリリースしました。
App Storeから最新版をダウンロードして頂き、症状が改善されるかご確認ください。
もし最新版にしても同じ状況が続く様であれば以下のお問い合わせフォームよりご連絡ください。
https://www.studioks.net/jp/contactus/

### 5/5 — Très satisfait

*2020-12-05*

Application très bien et bien pensée je la recommande vivement

### 5/5 — 同期されません。

*2020-11-23*

iOSとGoogleのカレンダー同期を許可にしていますが、同期されていません。
同期完了するまで何日かかるものなんですか？

## Frequently asked questions about ToDo Calendar Pro

### How does ToDo Calendar Pro help manage tasks?

ToDo Calendar Pro allows you to register tasks with scheduled start and end dates, view them on a calendar, and organize them into groups. You can also divide tasks into sub-tasks for better management.

### Can I sync my tasks with other calendar apps?

Yes, ToDo Calendar Pro can automatically register tasks to iOS Calendar, iOS Reminder, and Google Calendar. Tasks are also synced across all your devices through iCloud.

### What kind of files can I attach to tasks in ToDo Calendar Pro?

You can attach detailed information, photos, videos, Excel files, Word documents, and maps to your tasks. This helps keep all relevant information in one place.

### Does ToDo Calendar Pro have ads?

Yes, ToDo Calendar Pro contains advertisements. This is common for free productivity applications that offer in-app purchases.

### What devices does ToDo Calendar Pro support?

ToDo Calendar Pro is supported on Apple Watch, iPhone, iPad, and iPod. This allows for task management across various Apple devices.

### How often is ToDo Calendar Pro updated?

The latest version of ToDo Calendar Pro is 10.0, and it was last updated on December 18, 2025. This indicates a recent update and ongoing development.

### What is the age rating for ToDo Calendar Pro?

ToDo Calendar Pro has an age rating of 17+. This is due to the nature of the content it may handle or its potential use cases.

### Can I use ToDo Calendar Pro offline?

While tasks are synced via iCloud for anytime, anywhere access, the description does not explicitly state offline functionality for all features. However, iCloud sync implies some level of offline data availability that syncs when online.

## Version history (last 5 releases)

### 10.0 — 2025-12-18

This update contains stability and performance improvements.

### 9.6 — 2024-12-28

This update contains stability and performance improvements.

### 9.5 — 2024-07-19

This update contains stability and performance improvements.

### 9.4 — 2024-06-11

This update contains stability and performance improvements.

### 9.3 — 2024-03-25

This update contains stability and performance improvements.

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Simple To-Do Calendar](https://appshunter.io/ios/app/simple-to-do-calendar/id1572241029) | — | Free | Productivity |

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All apps by NAOAKI SEKIGUCHI: https://appshunter.io/developer/1146328819

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*