# Class Timetable vs Sigma Planner

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.

Both are free to download. Class Timetable sells 2 one-off in-app purchases. Sigma Planner asks for nothing beyond the download.

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.

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.

## The numbers

| Metric | Class Timetable | Sigma Planner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3K ratings)](https://appshunter.io/ios/app/class-timetable-schedule-app/id425121147/reviews) | **[4.8 (570 ratings)](https://appshunter.io/ios/app/sigma-planner/id1106938042/reviews)** |
| Number of ratings | **3K** | 570 |
| Positive reviews | 75.2% of reviews | **91.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 28 MB |
| Requires iOS | 14.0 | **13.6** |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Class Timetable LLC](https://appshunter.io/developer/411412435) | [Shao-Chi Liang](https://appshunter.io/developer/1106938041) |

## What reviewers say

### Class Timetable

[App page](https://appshunter.io/ios/app/class-timetable-schedule-app/id425121147)

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:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pastel Color Pack | $0.99 | one-time |
| Pro Upgrade | $1.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/sigma-planner/id1106938042)

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

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*