Comparison

CheckItOffYo vs Oneカレンダー

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

Head to head
About

CheckItOffYo

This is a free checklist application for iPhone and iPad. It offers extensive customization options, including image backgrounds, theme and item colors, font selection, and adjustable text sizes. It also supports dark mode and includes an authentication feature.

Highlights
  • Completely free
  • No ads
  • Customizable themes and backgrounds
  • Font and text size selection
  • Dark mode support
  • Authentication feature
Read full description

"CheckItOff" is a checklist app for iPhone and iPad. Here are some features of this app: 1) Completely free 2) No ads 3) You can select images from your own photo library to set at the top of your checklist 4) The theme color can be chosen from a color picker, enabling you to customize your own checklist 5) The background color of ToDo items can also be chosen from the color picker 6) By adding a space at the beginning of a ToDo item, you can turn off the check display, allowing it to be used as a notepad 7) You can choose the font you want to use 8) To accommodate for presbyopia, you can select text sizes up to 50 pt 9) Fully supports dark mode 10) Authentication feature is also available Download and try it out if you're interested.

About

Oneカレンダー

Read full description

1ヶ月間の予定を時間まで、1画面で確認できるカレンダーです! ●これに当てはまる方におすすめです!! ・バイトの予定を管理するために紙の手帳を買って、マンスリーのページのみ使っていた ・予定の詳細を表示したり、スクロールしたりせず、1ヶ月間の予定の時間まで1画面で確認したい ●このアプリは学生時代のバイトを思い出して作りました。 バイトのシフトを管理するために、1cmくらいの厚さの紙の手帳を買っていました。しかし、使っているページはマンスリーのページのみでした。予定の書き方はバイトの「バ」に19:00~22:30の勤務で、「バ19-22:30」などと書いていました。友達も同じように書いていたので、1ヶ月の予定を時間まで1画面で確認できるものがあれば嬉しいのでは考え、このアプリを作りました。 共感してくださる方、興味のある方は使ってみてください! 今後として、現状が最小限の機能のため、良いアイデアがあれば追加していきたいです。

Screenshots

CheckItOffYo4 screens
Oneカレンダー1 screens

Verdict

The call

The clearest difference is update cadence: CheckItOffYo at every 9 days against Oneカレンダー's every 5 weeks. 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

CheckItOffYo ships an update every 9 days, Oneカレンダー every 5 weeks. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

Scorecard1 real difference · 9 level
CheckItOffYo versus Oneカレンダー: the parameters behind the verdict, then further details
ParameterCheckItOffYoOneカレンダー
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 9 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.216.2
Further details — not scored
Size8 MB5 MB
Age rating4+4+
DeveloperMasayoshi Uedakeigo kozuka

In-app purchases

None

CheckItOffYo

No in-app purchases

None

Oneカレンダー

No in-app purchases

Questions

Is CheckItOffYo free?
CheckItOffYo is free to download, with no in-app purchases.
Is Oneカレンダー free?
Oneカレンダー is free to download, with no in-app purchases.
Do CheckItOffYo or Oneカレンダー have ads?
Neither CheckItOffYo nor Oneカレンダー shows ads.
Which is updated more often, CheckItOffYo or Oneカレンダー?
CheckItOffYo ships an update every 9 days, and Oneカレンダー every 5 weeks. Most recently, CheckItOffYo was updated on September 21, 2026 and Oneカレンダー on September 19, 2026.

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