Comparison

Class Timetable vs Sigma Planner

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

Head to head
About

Class Timetable

Organize your school, college, or university schedule with ease. Track classes, add events, and manage assignments with a user-friendly interface. Stay on top of your academic life with helpful features like Siri integration and customizable widgets.

Highlights
  • Class and event scheduling
  • Task and homework management
  • Siri integration
  • iOS 14 widgets
  • Apple Watch, macOS, iPad support
  • iCloud sync
  • Timetable import/export
Features
Read full description

Class Timetable is the perfect companion for school, college or university. Keep track of classes and add events to your week's schedule with ease. With over seven million downloads, Class Timetable features a beautiful color filled interface, optional multi-week timetables, and much more: • Siri support: 'Hey Siri, what class do I have next' • iOS 14 widgets • Tasks • Apple Watch, macOS and iPad support • iCloud sync • Import + export • More... THE PERFECT SCHEDULE APP: no other schedule for school, college, or university has ever been this easy to use. Swipe left and right to see what's coming up in your schedule, or rotate your device to see your timetable presented in a beautiful week display. KEEP TRACK OF HOMEWORK: with a built in task list, you can do more than manage your schedule. View your college assignment, stay on top of your school homework, and use features like task categories to ensure everything is organized. PRO FEATURES: class notifications, timetable export, task reminders and more ensures Class Timetable is the best schedule app out. Download now for free.

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.

Screenshots

Class Timetable4 screens
Sigma Planner4 screens

Verdict

The call

The clearest difference is in-app purchases: Sigma Planner at none against Class Timetable's 2. Sigma Planner also leads on review sentiment (91% vs 75%). Class Timetable's advantage is ratings volume (3K vs 570). On price, rating, update cadence and ads 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. Class Timetable sells 2 one-off in-app purchases. Sigma Planner asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Class Timetable against 4.8 for Sigma Planner. That said, the two scores are not equally well evidenced: Class Timetable has 3K ratings behind it against 570, so its average is the more settled of the two. Written reviews are what separate them: 75% of Class Timetable's written reviews are positive against 91% of Sigma Planner's.

UpkeepUpdate frequency

Class Timetable ships an update every 2 weeks, Sigma Planner fortnightly. The most recent releases landed on October 1, 2026 and September 11, 2026 respectively.

Scorecard4 real differences · 6 level
Class Timetable versus Sigma Planner: the parameters behind the verdict, then further details
ParameterClass TimetableSigma Planner
PriceFreeFree
Rating4.7 (3K ratings)4.8 (570 ratings) — better
Positive reviews75.2% of reviews91.4% of reviews — better
Number of ratings3K — better570
Update frequencyEvery 2 weeksFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad, iPod, Mac
Requires iOS14.013.6 — better
Further details — not scored
Size28 MB28 MB
Age rating4+4+
DeveloperClass Timetable LLCShao-Chi Liang

Customer experience

Class Timetable

All ratings3,009 ratings
Positive93.0%
Neutral3.2%
Negative3.9%
Written reviews463 reviews
Positive75.2%
Neutral10.6%
Negative14.3%

Sigma Planner

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

User reviews

Class Timetable

From 3K App Store ratings

What we love

  • 👍 Simple and easy to use
  • 🎨 Customizable colors
  • 🔔 Helpful notifications
  • ⌚️ Apple Watch integration
  • 🗓️ Supports multiple week schedules

Room to improve

  • 🐛 Syncing issues between devices
  • 🕰️ Limited time slot options
  • 🔒 Premium features locked behind paywall
  • 🗓️ Repeating schedule limitations
  • 📱 Inconsistent widget behavior

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

Bugs and requests

Class Timetable

Reported bugs

4 issues
  • Classes disappearing from timetable
  • Notifications not working as expected
  • Crashes when editing timetable
  • Time slots changing unexpectedly

Requested features

5 requests
  • Add ability to repeat tasks/events weekly
  • Implement calendar view for tasks
  • Allow custom start of week
  • Provide more color options
  • Add support for sharing timetables

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

In-app purchases

2 purchases

Class Timetable

One-time2
  • Pastel Color Pack$0.99
  • Pro Upgrade$1.99
None

Sigma Planner

No in-app purchases

Questions

Is Class Timetable free?
Class Timetable is free to download, with in-app purchases available.
Is Sigma Planner free?
Sigma Planner is free to download, with no in-app purchases.
Which has better reviews, Class Timetable or Sigma Planner?
Sigma Planner is rated higher. Class Timetable averages 4.7 out of 5 from 3K ratings, while Sigma Planner averages 4.8 from 570 ratings.
Do Class Timetable or Sigma Planner have ads?
Neither Class Timetable nor Sigma Planner shows ads.
Which is updated more often, Class Timetable or Sigma Planner?
Class Timetable ships an update every 2 weeks, and Sigma Planner fortnightly. Most recently, Class Timetable was updated on October 1, 2026 and Sigma Planner on September 11, 2026.

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