# NTU vs TPASS.calc

The clearest difference is device support: TPASS.calc at 3 against NTU's 1. TPASS.calc also leads on iOS requirement (18.0 vs 26.1). On price, ads 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 | NTU | TPASS.calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Size | 25 MB | 84 MB |
| Requires iOS | 26.1 | **18.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Shi Ying Pan](https://appshunter.io/developer/1163610450) | [CHENG RUEI HSU](https://appshunter.io/developer/1871371578) |

## What reviewers say

### NTU

[App page](https://appshunter.io/ios/app/ntu-course2cal/id6756231318)

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

**In-app purchases:** none


### TPASS.calc

[App page](https://appshunter.io/ios/app/tpasscalc/id6758194196)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is NTU free?

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

### Is TPASS.calc free?

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

### Do NTU or TPASS.calc have ads?

Neither NTU nor TPASS.calc 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.*