# Sigma Planner — Your Personal School Planner

> Academic planner for tracking classes, tasks, and schedules across devices. (iPhone/iPad app by Shao-Chi Liang.)

- Source: https://appshunter.io/ios/app/sigma-planner/id1106938042 (this page in markdown: same URL + `.md`)
- Developer: [Shao-Chi Liang](https://appshunter.io/developer/1106938041)
- Category: Education, Productivity
- Price: Free
- Rating: 4.80/5 from 570 App Store ratings · 139 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.6 · 28 MB
- Languages: American English, French (France), Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2016-09-14
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sigma-planner/id1106938042/reviews.md

## What is Sigma Planner?

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.

## Key features

- 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

## What do users think of Sigma Planner?

Overall sentiment: positive

**Pros**

- 👍 Highly customizable
- 🚀 Seamless syncing across devices
- 💡 Comprehensive features for students
- 👍 Clean and intuitive interface
- 🚀 Completely free with no ads
- 👍 Excellent organization and task management

**Cons**

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

**Commonly reported bugs**

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

**Most requested features**

- 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

## Recent user reviews (10 of 139)

All indexed reviews: https://appshunter.io/ios/app/sigma-planner/id1106938042/reviews.md

### 4/5 — Only one thing missing and then it would be PERFECT

*2026-06-10, version 3.3.9*

I love everything about this app, BUT it is missing one thing that would make it perfect!! Please make it so that i can have more than one reminder on something!! As someone with ADHD i got this app to help me keep track of my assignments and one reminder is not gonna cut it. PLEASE PLEASE PLEASE add more reminder slots!!!! 😭🙏

### 5/5 — PERFECT - please keep this app running for years

*2026-01-22, version 3.3.9*

This has been the perfect assignment tracker for college - love the widget feature and it works flawlessly between my iPhone, iPad, and Macbook!!!

### 5/5 — Dawg

*2025-12-09, version 3.3.9*

- no subscription like 95% of other calendar apps
- Differentiates between courses, classes and tasks while linking them together perfectly
- Lotsa customization (app ui color, course color/icon, home screen widgets, exact type of task, etc)
- No useless feature or clutter
- Easy to understand and use
- customizable reminders

dude lmsyd damn

### 5/5 — Lifesaver

*2025-09-01, version 3.3.9*

I've been looking for a daily planner for uni to replace mystudylife. This app is a godsend. Thanks!

### 5/5 — FREE!!!!!

*2025-08-26, version 3.3.9*

I was so pleased to find out absolutely no features in this app are hidden behind a paywall. It’s accessible on my phone and Mac. Actually sends the reminders you set in app. Beautifully customizable interface. I don’t usually write reviews but I could go on for days about how wonderful Sigma Planner is.

### 5/5 — Absolutely Amazing

*2025-08-26, version 3.3.9*

I love this app so much. I often have trouble keeping track of my assignments because I refuse to use a physical planner and things like Google Calendar or other planner apps just don’t cut it for me. I am currently a Sophomore in college and this app is working numbers. I don’t know if it’s the layout, organization, or just the easy user interface (yes I know I sound like a bot right now but seriously), this app is amazing. MY ONLY PROBLEM is that if you start adding tasks or classes, it might look like your schedule disappears for some time. Sometimes it comes back if I leave the app and come back and sometimes… it just doesn’t until a later time. The schedule shows in my widget, but with the semester just starting, make sure to write down your classes instead of relying on the app.

### 5/5 — Exactly what I was looking for

*2025-08-20, version 3.3.9*

This was exactly what I was looking for to organize my classes and homework’s, it can basically any schedule type

### 4/5 — The calendar section doesn’t the months

*2025-08-13, version 3.3.9*

Love the app being using it since I started university and it has been great. But after r some software update one my Mac a dipped when looking at calendar view I aim not see the months  name or the arrows to move to the next one. If I am trying set a date I have to make sure I count tho be sure it is the right month.

### 3/5 — Great but cant synch with Apple Calendar

*2025-04-02, version 3.3.9*

As the title says, it’s a great app for organizing my classes but I wish I could synch up my Apple Calendar events into the Sigma calander to view my other events/plans in the same planner as my classes. It would be as good as IStudiezPro if it did this! (Sadly Istudiezpro no longer is being updated).

### 5/5 — BEST PLANNING APP EVER

*2025-03-10, version 3.3.9*

No words can explain how well this app is I even got 2 of my friends hooked on to this app will use this FOR EVRERRR.

And it has even earned its right on my Home Screen thing (where ur recently used apps go and where u can add some permanent apps) 

This is my app my whole personal the reason I know all my hw the reason eveything I have is on time I owe this app my life. (There could be a few tweaks) but still 10000% recommend

## Frequently asked questions about Sigma Planner

### What does Sigma Planner do?

Sigma Planner is a personal school planner designed to help students track their classes and tasks with ease. It provides tools for organizing academic life, managing assignments, and keeping track of class schedules across multiple devices.

### What are the key features of Sigma Planner?

Key features include organizing courses by semester, creating and managing tasks with different priorities, flexible support for various class schedule types (time-based, period-based, block-based), home screen widgets for quick access to upcoming classes and tasks, and iCloud synchronization across iPhone, iPad, and Mac.

### Is Sigma Planner free to use?

Yes, Sigma Planner is a free application. The provided information indicates it does not have in-app purchases or ads, suggesting a completely free experience for users.

### What devices is Sigma Planner compatible with?

Sigma Planner is available for iPhone, iPad, and Mac. It is designed to be adaptive for every device, with specific features for iPadOS users and home screen widgets for iOS 14.

### How does Sigma Planner help with organization?

The app helps with organization by allowing users to categorize courses by semesters, ensuring past records are retained without clutter. It also facilitates easy task management with search and filter functions, and offers flexible class schedule management with customizable notifications.

## Version history (last 5 releases)

### 3.3.9 — 2022-02-27

– Fixed a handful of iCloud Sync issues, and improve recoverability when things go wrong.
– Fixed Class forms crashing in some rare cases.
– Fixed task display issues in the task list.

### 3.3.8 — 2021-09-02

– Improved iCloud sync and provided an option to provide sync logs to enable easier diagnosis of sync issues.
– Fixed a crash where updating the date in the Task form might cause a crash.
– Fixed the About view sometimes rendering its content incorrectly.

### 3.3.7 — 2021-04-22

– Fixed daily classes being unsorted in the Timetable screen.
– Fixed a crash that may occur when creating or editing classes.

### 3.3.6 — 2021-04-06

– Fixed updating the First Weekday may not properly update the Timetable widget.
– Fixed some issues where an overridden First Weekday may not fetch the correct classes in Weekly Timetable.
– Fixed an issue where the Weekly Timetable view may display incorrect date labels.
– Fixed an issue where Skipped Days (Day Zeroes) are not properly skipping classes in Timetable.
– Fixed some Chinese localization issues.

### 3.3.5 — 2021-03-21

– Fixed the overridden First Weekday setting not being applied in the Timetable widgets.
– Fixed some bugs with the iCloud sync that could cause a crash in rare conditions.
– Fixed classes in the Course detail screen not being sorted by their weekday.
– Fixed Sunday classes sometimes not showing up in the Calendar when using biweekly classes.
– Fixed a bug that could happen when reloading class notifications.

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## More apps by Shao-Chi Liang

- [Blurry](https://appshunter.io/ios/app/blurry/id1254612844)

All apps by Shao-Chi Liang: https://appshunter.io/developer/1106938041

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*