Comparison

task vs OneDay

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

Head to head
About

task

Features
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TaskCountDown helps you stay on top of deadlines by showing exactly how many days remain. Add your tasks and deadlines, and the app counts down the days automatically — so you always know what's coming up and what needs your attention now. [Features] ■ Deadline Countdown See the number of days remaining for each task at a glance. Overdue, today, soon, and future tasks are color-coded for quick scanning. ■ Categories Organize tasks by category — Work, Personal, Study, Health, and more — each with its own icon and color. ■ Memo Attach a note to any task to keep relevant details close at hand. ■ Push Notifications Get reminded before your deadline arrives. Set notifications per task or globally. ■ Completion Tracking Mark tasks as done and see how many days elapsed since the deadline. ■ Multilingual Supports English, Japanese, Thai, Vietnamese, and Chinese (Simplified). No ads. No unnecessary features. Just your deadlines, clearly counted down.

About

OneDay

Features
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OneDay is an app that focuses only on today's to-do list. What deserves your attention today? OneDay gives every task one of two clear places. What belongs to the present stays in Today. What is undecided or belongs to the future waits in Inbox. Not more management. A clearer today. Key Features • Today See tasks planned for today together with anything overdue. Open OneDay and immediately know what needs your attention now. • Inbox Keep tasks with no Planned Date or with a date in the future. Capture them now and decide when they belong later. • Planned Dates Choose today, tomorrow, or another calendar day. A Planned Date represents when you intend to work on something—not another artificial deadline. • Date Recognition Write a clear date in a title, such as “Submit release notes tomorrow,” and OneDay can recognize its Planned Date when the meaning is unambiguous. An explicitly selected date always takes priority, and recognized date text can be removed from the title automatically. • Automatic Placement Tasks planned for today or earlier appear in Today. Tasks without a date or planned for the future appear in Inbox. There are no complicated projects or lists to maintain. • Priorities Assign High, Medium, Low, or No Priority so the work that matters most naturally rises to the top. • Notes Add context, ideas, or next steps inside a task without forcing everything into its title. • Complete and Restore Complete a task with a tap. Finished tasks are collected into a separate section where they can be reviewed or restored at any time. • Daily Task Reminder Receive one concise summary at a time you choose. OneDay prioritizes the number of overdue tasks; when nothing is overdue, it reports what is still waiting in Inbox. • iCloud Sync Keep tasks consistent across Apple devices running OneDay through your private iCloud database. No separate OneDay account is required. • Optional Notifications Notification permission is requested only when you enable Daily Task Reminder. Every other feature remains available without notifications.

Screenshots

task4 screens
OneDay4 screens

Verdict

The call

The clearest difference is in-app purchases: OneDay at none against task's 1. On price, update cadence, 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. task sells 1 one-off in-app purchase. OneDay asks for nothing beyond the download.

UpkeepUpdate frequency

task ships an update weekly, OneDay every 8 days. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 8 level
task versus OneDay: the parameters behind the verdict, then further details
ParametertaskOneDay
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyWeekly — betterEvery 8 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, Mac — better
Requires iOS18.618.0 — better
Further details — not scored
Size2 MB4 MB
Age rating4+4+
Developerkeisuke arai悠然 廖

In-app purchases

1 purchases

task

One-time1
  • PREMIUM$0.99
None

OneDay

No in-app purchases

Questions

Is task free?
task is free to download, with in-app purchases available.
Is OneDay free?
OneDay is free to download, with no in-app purchases.
Do task or OneDay have ads?
Neither task nor OneDay shows ads.
Which is updated more often, task or OneDay?
task ships an update weekly, and OneDay every 8 days. Most recently, task was updated on October 10, 2026 and OneDay on October 24, 2026.

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