Comparison

Sigma Planner vs Grade Control

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

Grade Control

Easily track your school courses, assignments, and GPA. This app automatically calculates your GPA and helps you set and achieve grade goals by showing you what you need on future assignments. Manage your academic progress with customizable grade scales and assignment tracking.

Highlights
  • Automatic GPA calculation
  • Set and track grade goals
  • Course and assignment tracking
  • Customizable grade scales
  • Assignment due date notifications
  • Weighted and non-weighted courses
Features
Read full description

The Grade Control app is a convenient way to track school assignments, courses, and your GPA. GPA is calculated for you, so you'll always know what your grade is and what grade you need to reach your goal. GPA Know where you stand with automatic GPA calculation. Goals Set goal course grades and let Grade Control tell you what grade you need on future assignments. Courses Track courses and watch as both your overall GPA and semester GPA is automatically calculated. Assignments Track assignments or syllabus items. Get notifications or set calendar events when specific assignments are due and more. Customization Enter custom overall grade scales, course grade scales, schedules, weighted and non weighted courses, extra credit assignments and more. Privacy We believe privacy is a human right and do not collect any user data. And so much more... Terms of Service: https://kangostudios.com/#/terms Privacy Policy: https://kangostudios.com/#/privacy

Screenshots

Sigma Planner4 screens
Grade Control4 screens

Verdict

The call

The clearest difference is review sentiment: Sigma Planner at 91% against Grade Control's 30%. Sigma Planner also leads on rating (4.8 vs 4.2) and in-app purchases (none vs 6). On price, ratings volume 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. Grade Control sells 6 in-app purchases, starting at $4.99 per year. 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 4.2. Both are backed by a comparable volume of ratings — 570 and 495 respectively. Written reviews point the same way: 91% of Sigma Planner's written reviews are positive against 30% of Grade Control's.

UpkeepUpdate frequency

Sigma Planner ships an update fortnightly, Grade Control monthly. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

Scorecard7 real differences · 3 level
Sigma Planner versus Grade Control: the parameters behind the verdict, then further details
ParameterSigma PlannerGrade Control
PriceFreeFree
Rating4.8 (570 ratings) — better4.2 (495 ratings)
Positive reviews91.4% of reviews — better29.9% of reviews
Number of ratings570 — better495
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS13.6 — better17.0
Further details — not scored
Size28 MB6 MB
Age rating4+4+
DeveloperShao-Chi LiangKango Studios LLC

Customer experience

Sigma Planner

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

Grade Control

All ratings495 ratings
Positive79.0%
Neutral4.4%
Negative16.6%
Written reviews77 reviews
Positive29.9%
Neutral14.3%
Negative55.8%

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

Grade Control

From 495 App Store ratings

What we love

  • 🚀 Easy to use
  • 💡 Customizable grade scales
  • 👍 Helpful for tracking grades and GPA

Room to improve

  • 🐛 Glitchy and buggy
  • 🔒 Limited free features, requires premium to unlock full functionality
  • 👎 Poor customer support, unresponsive to user feedback

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

Grade Control

Reported bugs

3 issues
  • Assignments not saving properly
  • Grades and progress resetting unexpectedly
  • Frequent crashes and freezes

Requested features

3 requests
  • Add support for weighted grades and AP/advanced classes
  • Improve syncing between devices
  • Provide more detailed analytics and grade forecasting

In-app purchases

None

Sigma Planner

No in-app purchases

6 purchases

Grade Control

Subscriptions4
  • Grade Control Pro Yearly$4.991 Year
  • Grade Control Premium 6/Mo$5.996 Months
  • Grade Control Premium 12/Mo$9.991 Year
Show 1 more
  • Ultra - Yearly$9.991 Year
One-time2
  • Premium - Unlimited Grades$4.99
  • GC Unlimited - Tip Large$19.99

Questions

Is Sigma Planner free?
Sigma Planner is free to download, with no in-app purchases.
Is Grade Control free?
Grade Control is free to download, with in-app purchases available.
Which has better reviews, Sigma Planner or Grade Control?
Sigma Planner is rated higher. Sigma Planner averages 4.8 out of 5 from 570 ratings, while Grade Control averages 4.2 from 495 ratings.
Do Sigma Planner or Grade Control have ads?
Neither Sigma Planner nor Grade Control shows ads.
Which is updated more often, Sigma Planner or Grade Control?
Sigma Planner ships an update fortnightly, and Grade Control monthly. Most recently, Sigma Planner was updated on October 19, 2026 and Grade Control on October 18, 2026.

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