# IRIS, NITK vs CTRG

The clearest difference is device support: IRIS, NITK at 3 against CTRG's —. CTRG's advantage is iOS requirement (13.0 vs 15.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | IRIS, NITK | CTRG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iris-nitk/id1660761975/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 164 MB | 32 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [N I T K Surathkal](https://appshunter.io/developer/1660762097) | [Avijit Maji](https://appshunter.io/developer/1775860372) |

## What reviewers say

### IRIS, NITK

[App page](https://appshunter.io/ios/app/iris-nitk/id1660761975)

This app enhances student-teacher interaction at NITK by providing a digital platform for various academic and administrative functions. It offers features like profile management, course registration, grade tracking, and booking infrastructure.

**Highlights:** User Profiles (Student & Faculty), Infrastructure Booking, Attendance and Grade Cards, Course Registration & Feedback, Notifications and Announcements, Timetable & Course Activities, Placement Information

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

**In-app purchases:** none


### CTRG

[App page](https://appshunter.io/ios/app/ctrg/id6755481559)

**In-app purchases:** none


## Frequently asked questions

### Is IRIS, NITK free?

IRIS, NITK is free to download, with no in-app purchases.

### Is CTRG free?

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

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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.*