Comparison

Sigma Planner vs Assignment Planner

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

Head to head
About

Sigma Planner

This app helps students organize their academic life by tracking classes, tasks, and schedules. It offers customizable features, cross-device syncing, and home screen widgets for easy access to important information.

Highlights
  • Organize courses by semester
  • Create and manage tasks with priority
  • Flexible class schedule support
  • Home screen widgets for quick access
  • iCloud sync across devices
  • Customizable themes and app icons
Read full description

Sigma Planner is the perfect companion app for your academics that will help you track your classes and tasks with ease. It features a wide range of features to help you stay organized, as well as a beautiful design that is smooth, customizable, and adaptive for every device. With Sigma Planner, you will never need to carry your school planner anymore; all your planner and school information is available on your iPhone, iPad, and Mac. ORGANIZATION Sigma Planner offers a wide variety of features to organize your academic life. You should not need to clear or clutter your timetable every time you move onto the next semester. Sigma Planner offers the ability to organize your courses by semesters, which will allow you to retain records of all your past classes and assignments without having to delete them. TASKS Tasks are the core of any type of planner. In Sigma Planner, tasks can be created for a course, on a date, with a different task type, priority, and more. Tasks should always be easy to find; with the built-in search and filter features, you will never lose a task. CLASS SCHEDULES Sigma Planner is fully equipped to handle the many different schedule types around the world. The app is very flexible supports time-based, period-based, and block-based schedules, as well as supporting biweekly schedules, and late start or early end dates for specific classes. You can also enable class notifications to receive alerts before your classes occur. WIDGETS On iOS 14, Sigma Planner offers three kinds of home screen widgets which allow you to quickly glance at your planner data. You can quickly view your up next classes and tasks, focus on a specific course, or display your current week's timetable right from your home screen. Each widget also contain customization options to display just the information you want. iCLOUD SYNC Your data is always up to date across your devices through iCloud. You can edit a task on your iPhone, and you will immediately see them on iPad or Mac as soon as you hit save. There are no logins; no external accounts; it just works. FLEXIBILITY There are many built-in customizations available in Sigma Planner, including: dark mode, custom accent colours, display styles for tasks and courses, notification customizations, and more. The app also includes a handful of custom app icons to really spice up your home screen! DESIGN The app has a clean, simple, and intuitive interface. On top of that, Sigma Planner comes with 60 course icons to customize your classes, all on top of the customizations you get with the app. These course icons are also available as an iMessage sticker pack that comes with the app so you can share them with your friends! FOR iPAD Sigma Planner also has additional features for iPadOS users with an interface that is better suited for the larger iPad screen size, while at the same time, remain adaptive in supporting split screen multitasking and multiple-windows. Additionally, you can even drag a course to show the course detail in a separate window. Sigma Planner also offers support for trackpads and mice. ACCESSIBILITY Accessibility is one of the most powerful features of the iPhone, iPad, and Mac. Sigma Planner supports system accessibility features like Voice Over and Voice Control. Moreover, the app supports Dynamic Type, which scales text based on your system's Dynamic Type settings. SECURITY Protecting your tasks and course information has never been easier. Unlike your paper agenda, Sigma Planner has the ability to lock the app with a passcode, and allow your to easily unlock with Touch ID and Face ID on available devices.

About

Assignment Planner

Easily track homework and assignments with a planner focused on due dates. Receive timely notifications to ensure you never miss a deadline. This app syncs across all your devices, including Apple Watch, for seamless organization.

Highlights
  • Track homework and assignments
  • Focus on due dates
  • Plan ahead for deadlines
  • Receive assignment notifications
  • Syncs across all devices
  • Mark assignments as complete on Apple Watch
Read full description

Track your homework with a super easy to use planner. Focus on due dates, so you can plan ahead and never miss a deadline. Get a notification before assignments are due so you never forget to turn in your work. No mess. No stress. Never forget to turn in your homework again. Assignment Planner works on all your devices. Add new assignments and exams in class from your Mac. In the library, use your iPad to view upcoming assignments and exams. When you’re ready, mark assignments as complete from your wrist on Apple Watch. No need to pick up your phone, so you can stay focused on getting work done.

Screenshots

Sigma Planner4 screens
Assignment Planner4 screens

Verdict

The call

The clearest difference is in-app purchases: Sigma Planner at none against Assignment Planner's 1. Sigma Planner also leads on review sentiment (91% vs 57%) and update cadence (fortnightly vs every 5 weeks). On price, rating, 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. Assignment Planner sells 1 one-off in-app purchase. Sigma Planner asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sigma Planner holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 570 and 138 respectively. Written reviews point the same way: 91% of Sigma Planner's written reviews are positive against 57% of Assignment Planner's.

UpkeepUpdate frequency

Sigma Planner ships an update fortnightly, Assignment Planner every 5 weeks. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.

Scorecard6 real differences · 4 level
Sigma Planner versus Assignment Planner: the parameters behind the verdict, then further details
ParameterSigma PlannerAssignment Planner
PriceFreeFree
Rating4.8 (570 ratings) — better4.6 (138 ratings)
Positive reviews91.4% of reviews — better57.1% of reviews
Number of ratings570 — better138
Update frequencyFortnightly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, MaciPhone, iPad, iPod, Mac, Apple Watch — better
Requires iOS13.6 — better15.0
Further details — not scored
Size28 MB7 MB
Age rating4+4+
DeveloperShao-Chi LiangJohn Zeglarski

Customer experience

Sigma Planner

All ratings570 ratings
Positive96.8%
Neutral2.8%
Negative0.4%
Written reviews139 reviews
Positive91.4%
Neutral6.5%
Negative2.2%

Assignment Planner

All ratings138 ratings
Positive91.3%
Neutral3.6%
Negative5.1%
Written reviews77 reviews
Positive57.1%
Neutral11.7%
Negative31.2%

User reviews

Sigma Planner

From 570 App Store ratings

What we love

  • 👍 Highly customizable
  • 🚀 Seamless syncing across devices
  • 💡 Comprehensive features for students
  • 👍 Clean and intuitive interface
  • 🚀 Completely free with no ads

Room to improve

  • 🐛 Calendar and date picker issues
  • 🐛 Occasional app crashes
  • 🐛 Courses/schedule not always displaying correctly

Assignment Planner

From 138 App Store ratings

What we love

  • 👍 Simple and intuitive user interface
  • 📚 Effective assignment and exam tracking
  • 🎨 Color-coded subjects for organization
  • 🔔 Customizable notification settings
  • 💰 Free to use with no paywall

Room to improve

  • 🐛 Persistent notification delivery failures
  • 🐛 Date picker freezes and becomes unresponsive
  • 🐛 App crashes when setting due dates
  • 🐛 Sync issues across devices
  • ⚠️ Notifications turn off unexpectedly

Bugs and requests

Sigma Planner

Reported bugs

3 issues
  • Calendar not showing all months
  • Reminders not working as expected
  • Syncing issues between devices

Requested features

4 requests
  • Ability to set recurring tasks/assignments
  • Integration with other calendars (e.g. Google Calendar)
  • More visual indicators for completed tasks
  • Option to rearrange course order

Assignment Planner

Reported bugs

14 issues
  • Date picker unresponsive on mobile and desktop
  • App freezes when modifying assignment due dates
  • Notifications fail to send despite being enabled
  • Notifications disable themselves after being set
  • Forced app crashes requiring computer restart
Show 9 more
  • Data disappears after app updates
  • Assignments deleted unexpectedly
  • Subject colors revert to orange
  • Changing subject resets date and time fields
  • Cannot click anything after adding first assignment
  • Widget displays only in orange color
  • Inconsistent note-adding functionality
  • iPad UI lost column layout in recent update
  • Email support bouncing back

Requested features

16 requests
  • Cross-device synchronization via iCloud
  • Apple Watch app support for adding assignments
  • Recurring/repeating assignments feature
  • Calendar view integration
  • Subject folder organization by year/semester
Show 11 more
  • Timetable/class schedule feature
  • Customizable widget colors
  • Month view for assignments
  • Ability to add notes and attachments to assignments
  • Custom class icons instead of auto-assigned
  • Homework section separate from assignments
  • Undo/delete recovery option
  • Light mode toggle option
  • All assignments combined view page
  • Assignments without due dates option
  • Calendar sync with system calendar

In-app purchases

None

Sigma Planner

No in-app purchases

1 purchases

Assignment Planner

One-time1
  • Personality Pack$1.49

Questions

Is Sigma Planner free?
Sigma Planner is free to download, with no in-app purchases.
Is Assignment Planner free?
Assignment Planner is free to download, with in-app purchases available.
Which has better reviews, Sigma Planner or Assignment Planner?
Sigma Planner is rated higher. Sigma Planner averages 4.8 out of 5 from 570 ratings, while Assignment Planner averages 4.6 from 138 ratings.
Do Sigma Planner or Assignment Planner have ads?
Neither Sigma Planner nor Assignment Planner shows ads.
Which is updated more often, Sigma Planner or Assignment Planner?
Sigma Planner ships an update fortnightly, and Assignment Planner every 5 weeks. Most recently, Sigma Planner was updated on October 2, 2026 and Assignment Planner on October 15, 2026.

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