Comparison

Sigma Planner vs School Assistant

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

School Assistant

This app helps students organize their academic life by tracking homework, tests, and class schedules. It provides a dedicated space for class information, website links, and customizable reminders. The app offers seamless integration across Apple devices and a user-friendly interface.

Highlights
  • Homework and test tracking
  • Class schedule management
  • Class information storage
  • Website link saving
  • Customizable reminders
  • Apple Watch app integration
  • iCloud data syncing
Features
Read full description

School Assistant by Sun Apps is a simple but powerful school planner app. It allows you to quickly and easily keep track of your homework and tests, manage your schedule, save all your class info, quickly access saved websites, and more. First, as a student myself, I know how hard it can be to pay for these types of apps. So, School Assistant is 100% free: no subscriptions, no paywalls, no premium features, and no ads! There is a tip jar if you feel like supporting, though (these are the in-app purchases the App Store shows). Schoolwork: - Manage your upcoming assignments and tests - Sort by due date, class, category, alphabetically, or manually - Add a related class, due date, links, and notes - Add Subtasks to your schoolwork to keep track of large assignments - Schedule reminders - Highlight upcoming and overdue schoolwork - Keep an entire archive of your completed schoolwork - View how many assignments/tests you have right from your Home Screen with Widgets Schedule: - Keep track of your classes for every day - Add associated teacher and room information (or, add a link for online classes) - Automatically switch days based on the day of the week - Automatically switch between two weeks (great for A/B week schedules) - Manually switch between up to ten weeks - See your current class and next class on the Dashboard and with Widgets Classes: - A dedicated place to manage all your class info - Store your teacher’s name and email - Store a title, class code, links, and notes for each class - Assign an icon to each class, which also shows in Schoolwork Apple Watch App: - Super quick access to your most important information - View your Schoolwork, automatically sorted into assignments and tests - View your Schedule for any day - View your current and next classes, and how long you have left - Set a custom theme color to match your Watch, band, or outfit - Designed for quick interactions Other features: - Save website bookmarks for quick and easy access right in the app - Set a custom accent color - Theme the entire app with a color of your choosing - Over 20 app icon choices - Liquid Glass design - Full and automatic data syncing over iCloud - Tight iOS and iPadOS integration with support for features like Slide Over and Split View, iPad cursor, keyboard shortcuts, system sidebars, Home Screen widgets, Dynamic Text, and multi-window support - Support for iPhone, iPad, iPod touch, Mac, Apple Watch, and Apple Vision Pro - Designed with quick and easy usability in mind - Full support for Dark, Tinted, and Clear Home Screen modes

Screenshots

Sigma Planner4 screens
School Assistant4 screens

Verdict

The call

The clearest difference is in-app purchases: Sigma Planner at none against School Assistant's 6. Sigma Planner also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (13.6 vs 17.0). School Assistant's advantage is ratings volume (4.7K vs 570). On price, rating, review sentiment 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. School Assistant sells 6 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 — 4.8 for Sigma Planner against 4.8 for School Assistant. That said, the two scores are not equally well evidenced: School Assistant has 4.7K ratings behind it against 570, so its average is the more settled of the two. Written reviews are what separate them: 91% of Sigma Planner's written reviews are positive against 88% of School Assistant's.

UpkeepUpdate frequency

Sigma Planner ships an update fortnightly, School Assistant every 2 months. The most recent releases landed on October 19, 2026 and October 20, 2026 respectively.

Scorecard5 real differences · 5 level
Sigma Planner versus School Assistant: the parameters behind the verdict, then further details
ParameterSigma PlannerSchool Assistant
PriceFreeFree
Rating4.8 (570 ratings)4.8 (4.7K ratings)
Positive reviews91.4% of reviews — better87.5% of reviews
Number of ratings5704.7K — better
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, MaciPhone, iPad, Mac, Apple Watch, Vision Pro — better
Requires iOS13.6 — better17.0
Further details — not scored
Size28 MB538 MB
Age rating4+4+
DeveloperShao-Chi LiangSun Apps, LLC

Customer experience

Sigma Planner

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

School Assistant

All ratings4,713 ratings
Positive95.3%
Neutral2.6%
Negative2.1%
Written reviews568 reviews
Positive87.5%
Neutral5.5%
Negative7.0%

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

School Assistant

From 4.7K App Store ratings

What we love

  • 🚀 Helpful for staying organized
  • 👍 Easy to use and customizable
  • 🔓 Completely free with no ads or in-app purchases
  • 🤖 Integrates with Google Classroom
  • 📆 Useful schedule and countdown features

Room to improve

  • 🐛 Occasional crashes and glitches
  • 🔍 Limited integration with other school platforms
  • 🕰️ Needs more reminder options for assignments
  • 🗓️ Difficulty sorting assignments chronologically

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

School Assistant

Reported bugs

3 issues
  • Schedule details disappearing when switching days
  • App crashing on certain devices after updates
  • Widgets not displaying information correctly

Requested features

5 requests
  • Calendar view for assignments and tests
  • Ability to mark assignments as in-progress
  • Syncing across multiple devices
  • More customization options for widgets
  • Integration with other school apps like Canvas

In-app purchases

None

Sigma Planner

No in-app purchases

6 purchases

School Assistant

One-time6
  • Tip Jar – $0.99$0.99
  • Tip Jar – $1.99$1.99
  • Tip Jar – $2.99$2.99
Show 3 more
  • Tip Jar – $3.99$3.99
  • Tip Jar – $4.99$4.99
  • Tip Jar – $0.99$400.00

Questions

Is Sigma Planner free?
Sigma Planner is free to download, with no in-app purchases.
Is School Assistant free?
School Assistant is free to download, with in-app purchases available.
Which has better reviews, Sigma Planner or School Assistant?
Sigma Planner and School Assistant are both rated 4.8 out of 5 on the App Store, from 570 and 4.7K ratings respectively.
Do Sigma Planner or School Assistant have ads?
Neither Sigma Planner nor School Assistant shows ads.
Which is updated more often, Sigma Planner or School Assistant?
Sigma Planner ships an update fortnightly, and School Assistant every 2 months. Most recently, Sigma Planner was updated on October 19, 2026 and School Assistant on October 20, 2026.

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