Comparison

Calendar app *DeepBlack vs todoマネージャー

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calendar app *DeepBlack

Organize your schedule with a simple calendar, time, and to-do list. Add tasks and appointments with a touch, and visually distinguish events using customizable color-coding. This app offers a private way to manage your plans without needing to register.

Highlights
  • Daily task and appointment list
  • Color-coded event decoration
  • Customizable schedule creation
  • Private, device-saved plans
  • Simple touch interface
Features
Read full description

Appointment book use as casual note. Organized plan in Calendar and Time and To-do list. Feature Overview Details [touch +] "Task" or "Appointment" added to "daily task list" [touch x] "Task" or "Appointment" deleted from "daily task list" [touch color bar] Calendar decorated by color Providing scheduling solutions in a few touch. Customization Calendar marks up by color that selected suitable for this calendar to define special event days. Appointment book app even not defined holiday according to the ordinary calendar. Can create schedule suite for your lifestyle. Also recommend to people that don't rest Saturday and Sunday. About appointment and task list date No need to register. You're secretly appointment or task list saved your device.

About

todoマネージャー

Features
Read full description

日々のタスク管理とルーティンワークを、もっとシンプルに、もっと効率的に。 TODO Managerは、やるべきこと(タスク)と、毎日繰り返すこと(ルーティン)を一元管理できるアプリです。Ver 1.1.0では「マルチプロファイル機能」を搭載し、仕事用とプライベート用など、異なるコンテキストを1つのアプリで完全に分離して管理できるようになりました。 <主な機能> TODO管理: 期限設定、重要度(1〜5)の設定が可能。 ルーティン管理: 毎日・毎週の習慣をチェックリスト化。実施チェックは毎日自動でリセットされるため、毎朝リフレッシュした状態でスタートできます。 マルチプロファイル: 「Profile 1」「Profile 2」など、最大2つの独立した作業スペースを作成可能。仕事と私生活をスイッチ一つで切り替えられます。 シンプルで美しいUI: 必要な情報が見やすく整理された、使い心地の良いデザイン。

Screenshots

Calendar app *DeepBlack4 screens
todoマネージャー4 screens

Verdict

The call

The clearest difference is update cadence: todoマネージャー at weekly against Calendar app *DeepBlack's every 5 months. Calendar app *DeepBlack's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Calendar app *DeepBlack ships an update every 5 months, todoマネージャー weekly. The most recent releases landed on October 12, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
Calendar app *DeepBlack versus todoマネージャー: the parameters behind the verdict, then further details
ParameterCalendar app *DeepBlacktodoマネージャー
PriceFreeFree
Rating4.5 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size10 MB26 MB
Age rating17+4+
DeveloperBakerstreet Co., Ltd.Yoshiyuki Fukabori

In-app purchases

None

Calendar app *DeepBlack

No in-app purchases

None

todoマネージャー

No in-app purchases

Questions

Is Calendar app *DeepBlack free?
Calendar app *DeepBlack is free to download, with no in-app purchases.
Is todoマネージャー free?
todoマネージャー is free to download, with no in-app purchases.
Do Calendar app *DeepBlack or todoマネージャー have ads?
Neither Calendar app *DeepBlack nor todoマネージャー shows ads.
Which is updated more often, Calendar app *DeepBlack or todoマネージャー?
Calendar app *DeepBlack ships an update every 5 months, and todoマネージャー weekly. Most recently, Calendar app *DeepBlack was updated on October 12, 2026 and todoマネージャー on October 31, 2026.

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