Comparison

321 ToDo vs ToDoBuff ~ToDo×Scheduling

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

Head to head
About

321 ToDo

Organize your tasks with a countdown to their due dates. This app helps you manage your to-do list with real-time grace period displays and customizable reminders. Features include swipe-to-delete, sorting options, and repeat task settings.

Highlights
  • Countdown to due dates
  • Swipe to delete tasks
  • Manual and automatic sorting
  • Customizable reminders
  • Repeat task function
  • Theme color customization
  • Badge display for incomplete tasks
Features
Read full description

Countdown ToDo is a ToDo application that allows you to display and check the grace time until the due date in real time. Let's organize what we have to do by the time. ◆◆◆ Main functions of Countdown ToDo ◆◆◆ ◆ ToDo list ・Swipe to delete. ・Delete all at once with the trash can button. ・Switching between manual sorting and automatic sorting In manual sorting, you can sort by long-pressing ToDo. With automatic sorting, the deadlines are automatically sorted in ascending order. ◆ Task deadline ・reminder It can be set before or after the due date. If the task is checked, you will not be notified. ・Repeat function It can be set daily, weekly, or monthly. When the checked task is the day after the due date, it will be unchecked and the due date will be updated. ◆ Others ・Change theme You can change the theme color of the app from 16 colors. ・Badge display You can badge the number of incomplete tasks. ◆◆◆ Remarks ◆◆◆ If you have any requests or problems, please contact us from the setting screen in the app.

About

ToDoBuff ~ToDo×Scheduling

Read full description

There are plenty of apps for habit tracking and schedule management, yet sticking to them is always a challenge. You write down your plans, feel satisfied, and then end up structuring your schedule in your head as you go, don’t you? Unfortunately, that’s exactly what I do… To break free from this cycle of "writing things down just for the sake of it," I created this app. By turning your schedule into a To-Do list, just like a shopping list, you add an extra step—checking off tasks after writing them down—instead of stopping at just writing. It’s a small change, but the goal is to create a sense of accomplishment, boosting motivation for managing your schedule more effectively! How to use it? Choose the type of To-Do—habit, schedule, etc. Set a title and time quickly. Select a category to organize your tasks. As a bonus, there's also a Quick To-Do feature for tasks that don't quite need a full schedule—just like jotting down a shopping list. Download the app now and master your schedules and habits with To-Dos!

Screenshots

321 ToDo3 screens
ToDoBuff ~ToDo×Scheduling4 screens

Verdict

The call

The clearest difference is in-app purchases: 321 ToDo at none against ToDoBuff ~ToDo×Scheduling's 1. 321 ToDo also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (9.0 vs 16.6). 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. ToDoBuff ~ToDo×Scheduling sells 1 one-off in-app purchase. 321 ToDo asks for nothing beyond the download.

UpkeepUpdate frequency

321 ToDo ships an update every 3 days, ToDoBuff ~ToDo×Scheduling every 3 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
321 ToDo versus ToDoBuff ~ToDo×Scheduling: the parameters behind the verdict, then further details
Parameter321 ToDoToDoBuff ~ToDo×Scheduling
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPod — betteriPhone
Requires iOS9.0 — better16.6
Further details — not scored
Size64 MB14 MB
Age rating4+4+
DeveloperShibapp LLCTaito Iikura

In-app purchases

None

321 ToDo

No in-app purchases

1 purchases

ToDoBuff ~ToDo×Scheduling

One-time1
  • Ads Removal$14.99

Questions

Is 321 ToDo free?
321 ToDo is free to download, with no in-app purchases.
Is ToDoBuff ~ToDo×Scheduling free?
ToDoBuff ~ToDo×Scheduling is free to download, with in-app purchases available.
Do 321 ToDo or ToDoBuff ~ToDo×Scheduling have ads?
Both 321 ToDo and ToDoBuff ~ToDo×Scheduling show ads.
Which is updated more often, 321 ToDo or ToDoBuff ~ToDo×Scheduling?
321 ToDo ships an update every 3 days, and ToDoBuff ~ToDo×Scheduling every 3 weeks. Most recently, 321 ToDo was updated on October 24, 2026 and ToDoBuff ~ToDo×Scheduling on October 30, 2026.

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