# CAT SIS vs Part

The clearest difference is in-app purchases: CAT SIS at none against Part's 2. CAT SIS also leads on update cadence (daily vs every 2 months) and iOS requirement (13.0 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. Part sells 2 in-app purchases, starting at $8.99 per month. CAT SIS asks for nothing beyond the download.

CAT SIS ships an update daily, Part every 2 months. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | CAT SIS | Part |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/cat-sis/id6479576357/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 months |
| Monetization | Free | — |
| Size | 20 MB | 10 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Informatique for Information Technology](https://appshunter.io/developer/1505295476) | [Selcuk Dolapci](https://appshunter.io/developer/1509031121) |

## What reviewers say

### CAT SIS

[App page](https://appshunter.io/ios/app/cat-sis/id6479576357)

This app provides a comprehensive platform for students and faculty to manage academic information. It offers features for tracking grades, attendance, schedules, and financial details, aiming to enhance educational efficiency and collaboration.

**Highlights:** Academic profile management, Grade and GPA tracking, Attendance monitoring, Timetable and class details, Test and college cost information, Faculty class management

**Features:** macOS Compatibility

**In-app purchases:** none


### Part

[App page](https://appshunter.io/ios/app/part-66-pro-easa-mock-exam/id6751455095)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $8.99 | per month |
| Pro (Yearly) | $89.99 | per year |


## Frequently asked questions

### Is CAT SIS free?

CAT SIS is free to download, with no in-app purchases.

### Is Part free?

Part is free to download, with in-app purchases available.

### Do CAT SIS or Part have ads?

Neither CAT SIS nor Part shows ads.

### Which is updated more often, CAT SIS or Part?

CAT SIS ships an update daily, and Part every 2 months. Most recently, CAT SIS was updated on October 8, 2026 and Part on October 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.*