Comparison

Simple Task Manager vs 退屈道場

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

Head to head
About

Simple Task Manager

Features
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Too many tasks. Too many lists. Nothing gets done. One Task is a simple, minimalist task manager built around one idea: focus on one task at a time. Instead of filling another endless to-do list, One Task lets you set just one main task. No overwhelming backlog. No constantly changing priorities. Just one clear thing to focus on right now. Do one thing. Finish it. Then move on. ■ FOCUS ON ONE TASK You can have only one main task at a time. This simple constraint removes the question of “What should I do next?” and helps you stay focused on what matters most. ■ BREAK BIG TASKS INTO SMALL STEPS A task can feel overwhelming when you don’t know where to start. Break your main task into up to 5 smaller, actionable subtasks and tackle it one step at a time. ■ AUTOMATIC TASK ARCHIVE Finished a task? It’s automatically moved to your archive. Look back at what you’ve accomplished or restore a previous task whenever you need it. ■ SAVE IT FOR LATER WITH VAULT Thought of something else you need to do? Put it in Vault instead of interrupting your current task. Save ideas and future tasks for later while keeping your attention on what matters right now. ■ AI SUBTASK BREAKDOWN Not sure how to get started? Enter your main task and let AI break it down into clear, actionable subtasks. Choose only the suggestions that make sense for you and add them with a tap. Free users can try AI Subtask Breakdown once per day. Subscribe to AI Subtask Breakdown to increase your subtask limit from 5 to 10, for both AI-generated and manually added subtasks. ONE TASK IS FOR YOU IF: • Your to-do list keeps getting longer • Too many tasks make it hard to decide where to start • You want a simple task manager without unnecessary complexity • You struggle with procrastination or task overwhelm • You want to focus on one thing at a time • You like breaking big tasks into smaller steps • You want a cleaner way to manage work, study, or daily tasks • Traditional productivity apps feel like too much work Most task managers help you manage more tasks. One Task helps you focus on fewer. Stop managing everything. Start finishing one thing. One Task — one task at a time. No accounts. No complex features. Just one task at a time. Privacy policy https://hushed-coriander-11e.notion.site/One-Task-2c6a05a584c080bf8deaf1b8fc434267 Term of use https://app.notion.com/p/One-Task-2c7a05a584c080029193ec23640a0c7e

About

退屈道場

Features
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退屈道場は、何もしないことを練習するための、静かな瞑想アプリです。 刺激を求める指先を止め、ただ座る稽古を一日に一度。 通知も、広告も、サブスクも、ログインも、ありません。 画面の九割は余白です。 【三原則】 一、間の美学 ―― 画面の七割以上は余白。情報の詰め込みは敵です。 二、静の美学 ―― バネ仕掛けの動きや祝いの演出はありません。 三、不完全の美学 ―― 筆のかすれ、和紙の揺らぎ、墨の濃淡。整えすぎない。 【稽古の流れ】 一、道場(ホーム)に入る 二、本日の型を選ぶ ―― 短き型(1〜8分)/長き型(10〜60分)/任意(自由入力) 三、稽古する ―― 大きく薄い数字のタイマーが動く 四、結ぶ ―― 終わった円相に、思ったことを一言だけ書く(任意) 五、記録 ―― 円相の点が日々並ぶカレンダー タイマーは意図的に薄い色で表示されます。残り時間を気にする心=すなわち雑念です。 あなたは過剰なドーパミンから脱出するために、道場に入門したのです。 【段位】 白帯五級から黒帯まで、稽古を重ねるごとに、ホームに描かれる円相の墨が、少しずつ濃くなっていきます。 祝賀演出も、バッジ通知も、ありません。色が静かに深まるだけ。 他人との比較もありません。あなたの稽古は、あなたのものです。 【反ドパガキ宣言 ―― やらないこと】 × プッシュ通知 × 連続日数の煽り × ソーシャル機能・友人比較 × サブスク誘導モーダル × バッジの祝賀演出 × 派手なイラストや絵文字 × BGM・自然音ライブラリ × AIコーチ・チャットボット × 週次メール 【プライバシー】 本アプリは、稽古の記録を端末内のローカルデータベースのみに保存します。 アカウント登録は不要、サーバーへの送信もありません。 通知の許可も求めません。 【こんな方に】 ・スマホ通知の波から少し離れたい ・派手な演出のない、淡々とした瞑想アプリを探している ・坐禅・呼吸・静けさに惹かれる ・「○日連続」のような圧迫感のある習慣化が苦手 ・買い切り・広告なし・ログイン不要のアプリを探している 退屈は、贅沢です。 何もしないことを、練習しましょう。

Screenshots

Simple Task Manager3 screens
退屈道場4 screens

Verdict

The call

The clearest difference is in-app purchases: 退屈道場 at none against Simple Task Manager's 3. 退屈道場 also leads on iOS requirement (15.1 vs 17.6). Simple Task Manager's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads 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. Simple Task Manager sells 3 in-app purchases, starting at $3.99 per month. 退屈道場 asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Task Manager ships an update every 3 weeks, 退屈道場 every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 3 level
Simple Task Manager versus 退屈道場: the parameters behind the verdict, then further details
ParameterSimple Task Manager退屈道場
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size1 MB50 MB
Age rating4+4+
DeveloperKAZUHO MOROFUJITAKESHI NOJIRI

In-app purchases

3 purchases

Simple Task Manager

Subscriptions2
  • One Task AI Monthly$3.991 Month
  • OneTask AI Yearly$24.991 Year
One-time1
  • One Task Plus$1.99
None

退屈道場

No in-app purchases

Questions

Is Simple Task Manager free?
Simple Task Manager is free to download, with in-app purchases available.
Is 退屈道場 free?
退屈道場 is free to download, with no in-app purchases.
Do Simple Task Manager or 退屈道場 have ads?
Neither Simple Task Manager nor 退屈道場 shows ads.
Which is updated more often, Simple Task Manager or 退屈道場?
Simple Task Manager ships an update every 3 weeks, and 退屈道場 every 2 months. Most recently, Simple Task Manager was updated on October 28, 2026 and 退屈道場 on October 24, 2026.

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