# Sigma Planner vs Class Schedule Planner

The clearest difference is in-app purchases: Sigma Planner at none against Class Schedule Planner's 11. Sigma Planner also leads on review sentiment (91% vs 63%) and rating (4.8 vs 4.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Class Schedule Planner sells 11 in-app purchases, starting at $0.99 per month. Sigma Planner asks for nothing beyond the download.

Sigma Planner holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 595 and 312 respectively. Written reviews point the same way: 91% of Sigma Planner's written reviews are positive against 63% of Class Schedule Planner's.

Sigma Planner ships an update fortnightly, Class Schedule Planner every 11 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Sigma Planner | Class Schedule Planner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (595 ratings)](https://appshunter.io/ios/app/sigma-planner/id1106938042/reviews)** | [4.6 (312 ratings)](https://appshunter.io/ios/app/class-schedule-planner-tibly/id1500111859/reviews) |
| Number of ratings | **595** | 312 |
| Positive reviews | **91.4% of reviews** | 62.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 28 MB | 85 MB |
| Requires iOS | **13.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shao-Chi Liang](https://appshunter.io/developer/1106938041) | [RAISIN APPS LTD](https://appshunter.io/developer/1837005357) |

## What reviewers say

### 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


### Class Schedule Planner

[App page](https://appshunter.io/ios/app/class-schedule-planner-tibly/id1500111859)

Manage your courses, assignments, and events in one organized place. Get timely reminders, track progress with live countdowns, and sync across devices. Share your schedule effortlessly with others.

**Highlights:** Flexible scheduling for various routines, Customizable smart reminders, Live countdown widgets, iCloud and Apple Calendar sync, Easy schedule sharing, Personalization options, Detailed statistics and analytics

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One month subscription | $0.99 | per month |
| One month subscription | $0.99 | per month |
| Tibly: Premium Schedule | $2.99 | per 7 days |
| One week subscription | $4.99 | per 7 days |
| Timetable. School schedule PRO | $4.99 | per month |
| Timetable. School schedule PRO | $6.99 | per month |
| Timetable. School schedule PRO | $7.99 | per year |
| Timetable. School schedule PRO | $7.99 | per year |
| One year subscription | $19.99 | per year |
| One year subscription | $29.99 | per year |
| One time purchase | $7.99 | one-time |


## Frequently asked questions

### Is Sigma Planner free?

Sigma Planner is free to download, with no in-app purchases.

### Is Class Schedule Planner free?

Class Schedule Planner is free to download, with in-app purchases available.

### Which has better reviews, Sigma Planner or Class Schedule Planner?

Sigma Planner is rated higher. Sigma Planner averages 4.8 out of 5 from 595 ratings, while Class Schedule Planner averages 4.6 from 312 ratings.

### Do Sigma Planner or Class Schedule Planner have ads?

Neither Sigma Planner nor Class Schedule Planner shows ads.

### Which is updated more often, Sigma Planner or Class Schedule Planner?

Sigma Planner ships an update fortnightly, and Class Schedule Planner every 11 days. Most recently, Sigma Planner was updated on October 24, 2026 and Class Schedule Planner on October 20, 2026.

---

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