# INI vs CTR

The clearest difference is iOS requirement: CTR at 13.0 against INI's 15.1. On price, ads, in-app purchases and device support 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 | INI | CTR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 236 MB | 201 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Indra Gupta](https://appshunter.io/developer/1834404703) | [Testpress Tech Labs LLP](https://appshunter.io/developer/1235683817) |

## What reviewers say

### INI

[App page](https://appshunter.io/ios/app/ini-cet-previous-year-papers/id6753866872)

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

**In-app purchases:** none


### CTR

[App page](https://appshunter.io/ios/app/ctr-pyqpyt-revision-app/id6798570542)

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

**In-app purchases:** none


## Frequently asked questions

### Is INI free?

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

### Is CTR free?

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

### Do INI or CTR have ads?

Neither INI nor CTR shows ads.

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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.*