Comparison

week vs One Task

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

Head to head
About

week

Features
Read full description

This is an app for recording your daily life. Features of week: 1. You don't need to record every day; you can record your thoughts at your own pace. Of course, it is also possible to make multiple notes in a single day. We have prioritized usability so you can record your thoughts as soon as they come to mind. 2. On Sundays, you can look back on the past week. By reviewing the records you have accumulated, you can cherish your discoveries, important events, and even ordinary days. 3. It's not just about recording; we have included various functions to look back on past entries (with more being actively added!). Features include viewing a single random record, seeing your most used emojis, and identifying weeks where you recorded the most, among others. 4. We have paid close attention to ensure it is comfortable to use in dark mode. It switches automatically in sync with your system settings. 5. All data is stored only on your device and will never be shared externally. Since you can use the app offline, you don't have to suppress the urge to take notes, whether you are in airplane mode on a flight or using the incredibly slow Wi-Fi on a Shinkansen bullet train. 6. I like designs that are simple and easy to use, yet calm and playful. Please install the app and experience the design for yourself. Before using the application, please be sure to read the following. By installing the app, you are deemed to have agreed to these terms. Terms of Use: https://www.apple.com/legal/internet-services/itunes/us/terms.html Privacy Policy: https://drive.google.com/file/d/1J3rL7Rr3k_HTctSGwDrCEgn8i-EH_RzY/view?usp=sharing

About

One Task

Features
Read full description

Too many tasks leave you overwhelmed. One Task is a minimalist to-do app that helps you focus on the single most important thing right now. Nothing more. Nothing less. Instead of juggling endless to-do lists, One Task limits you to just one main task. This simple constraint helps you reduce mental clutter and actually finish what you start. You can break your main task into a few small subtasks, but you'll always know what truly deserves your attention. Finished tasks are archived automatically, so you can look back or restore them anytime. Got something you want to do later? Unlock Vault to stash it away without losing focus on what matters right now. NEW: AI Subtask Breakdown Not sure where to start? Just enter your main task, and AI will split it into clear, actionable subtasks. Pick only the ones you need. Free users can try it once a day. Subscribe to AI Subtask Breakdown and your subtask limit increases from 5 to 10 — for both AI-generated and manually added subtasks. One Task is designed for people who want clarity, focus, and calm productivity. 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

Screenshots

week3 screens
One Task3 screens

Verdict

The call

The clearest difference is ads: One Task at none against week's shown. week's advantage is update cadence (every 11 days vs every 4 weeks). On price, in-app purchases, device support and iOS requirement 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. week sells 2 in-app purchases, starting at $1.99 per month and One Task sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

week ships an update every 11 days, One Task every 4 weeks. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

Scorecard2 real differences · 4 level
week versus One Task: the parameters behind the verdict, then further details
ParameterweekOne Task
PriceFreeFree
Update frequencyEvery 11 days — betterEvery 4 weeks
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad — better
Requires iOS17.4 — better17.6
Further details — not scored
Size11 MB1 MB
Age rating4+4+
DeveloperTaito HiranoKAZUHO MOROFUJI

In-app purchases

2 purchases

week

Subscriptions2
  • Premium - monthly7 Days trial$1.991 Month
  • Premium - yearly$19.991 Year
1 purchases

One Task

One-time1
  • One Task Plus$1.99

Questions

Is week free?
week is free to download, with in-app purchases available.
Is One Task free?
One Task is free to download, with in-app purchases available.
Do week or One Task have ads?
week shows ads; One Task does not.
Which is updated more often, week or One Task?
week ships an update every 11 days, and One Task every 4 weeks. Most recently, week was updated on September 9, 2026 and One Task on September 18, 2026.

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