Comparison

Deadline Tracker vs Kigen ~ penguin task tracker

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

Head to head
About

Deadline Tracker

Stay on top of your tasks with a visual countdown timer and customizable widgets. Organize deadlines with tags, set repeating tasks, and receive timely reminders. Syncs across devices for seamless access.

Highlights
  • Customizable themes
  • Home and lock screen widgets
  • Deadline auto-repeat
  • iCloud Sync
  • Notification reminders
  • Tagging system
  • Sort and pin deadlines
Features
Read full description

- Customizable Themes: personalize the deadlines and choose your favorite style of design to make deadline tracking more intuitive and interesting. - Home and lock screen widgets: quickly view upcoming deadlines on your home and lock screens. Stay up to date on your progress without opening the app. - Deadline auto-repeat: Easily set up repeating deadlines for tasks that need to be completed on a regular basis. - iCloud Sync: Keep your deadlines synchronized across all your devices with iCloud. Easily access your deadlines wherever you are, switching seamlessly from iPhone, iPad, Vision Pro and Mac. - Notification reminders: Never forget an important deadline again. - Tagging System: Easily organize your deadlines with our powerful tagging system. Use tags to categorize and label tasks, and easily find and manage specific deadlines. - Sort and Pin System: Easily sort and prioritize tasks based on a variety of criteria such as date created, date edited, percent complete and time remaining. Pin important deadlines for quick access and viewing. Terms of Use (End User License Agreement): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Kigen ~ penguin task tracker

This app helps you manage tasks and meet deadlines with a simple interface. It uses color-coded indicators for due dates and a punctuality level system to motivate users. Receive timely notifications to stay on track.

Highlights
  • Task title, note, due date, and importance entry
  • Color-coded due date status indicators
  • Punctuality level system for motivation
  • Customizable deadline notifications
  • Simple task completion marking
Read full description

Kigen Tasks is a semi-task management scheduling app designed to help you enjoyably meet deadlines. Kigen (期限) means due/ deadline in Japanese. There is a reason why I wrote "semi". This app is a little too simple to be called a scheduling app. All you need to enter is the title, a quick note, the due date, and the importance of the task. It is also very simple to use. When a task is completed, you just record it as completed. Completed tasks will disappear, but uncompleted tasks will stay on the list until they are completed, regardless of the passing days. Other features include ・Background colours as a due status indicator. When the background colour is green, it is safe! If you have an appointment within 5 days, it will turn yellow, for the next day's task it will turn orange, and on the same day or when an appointment has already passed the due date, it will turn red. ・Punctuality level If you complete a task earlier than the set due date, you will move up a level! On the other hand, if you miss the deadline, you will be downgraded. There is nothing special that happens just because the level is raised, but it is a nice feeling to see the number go up, so I hope you will make use of it to motivate yourself. ・Notification function Notifications are sent one week, five days, three days, two days, the day before, and the day of the deadline! This is why this app is too simple to be called a schedule app, instead, it is an app that was created with the focus on how to help you keep up with your deadlines simply and enjoyably. No more last-minute deadlines!

Screenshots

Deadline Tracker4 screens
Kigen ~ penguin task tracker4 screens

Verdict

The call

The clearest difference is review sentiment: Kigen ~ penguin task tracker at 100% against Deadline Tracker's 0%. Deadline Tracker's advantage is ads (none vs shown) and device support (3 vs 1). On price, update cadence, in-app purchases and monetization model 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. Deadline Tracker sells 3 in-app purchases, starting at $1.99 per month and Kigen ~ penguin task tracker sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
Deadline Tracker versus Kigen ~ penguin task tracker: the parameters behind the verdict, then further details
ParameterDeadline TrackerKigen ~ penguin task tracker
PriceFreeFree
Rating4.5 (10 ratings) — better—
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings10 — better—
Update frequencyEvery 9 daysEvery 9 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, Vision Pro — betteriPhone
Requires iOS16.0 — better16.6
Further details — not scored
Size29 MB20 MB
Age rating4+4+
DeveloperZIJIAN CHENTaito Iikura

Customer experience

Deadline Tracker

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Kigen ~ penguin task tracker

Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Deadline Tracker

Subscriptions2
  • 1 Month$1.991 Month
  • 1 Year7 Days trial$4.991 Year
One-time1
  • Lifetime$9.99
3 purchases

Kigen ~ penguin task tracker

One-time3
  • Support Kigen App$1.99
  • Support Kigen App$4.99
  • Ads Free Plan$14.99

Questions

Is Deadline Tracker free?
Deadline Tracker is free to download, with in-app purchases available.
Is Kigen ~ penguin task tracker free?
Kigen ~ penguin task tracker is free to download, with in-app purchases available.
Do Deadline Tracker or Kigen ~ penguin task tracker have ads?
Kigen ~ penguin task tracker shows ads; Deadline Tracker does not.
Which is updated more often, Deadline Tracker or Kigen ~ penguin task tracker?
Deadline Tracker ships an update every 9 days, and Kigen ~ penguin task tracker every 9 days. Most recently, Deadline Tracker was updated on September 16, 2026 and Kigen ~ penguin task tracker on September 18, 2026.

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