# SIRIRAJ CAMPUS ALUMNI vs ZERO CARBON TH

The clearest difference is iOS requirement: SIRIRAJ CAMPUS ALUMNI at 10.0 against ZERO CARBON TH's 13.0. 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 | SIRIRAJ CAMPUS ALUMNI | ZERO CARBON TH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 54 MB | 41 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mahidol University International College](https://appshunter.io/developer/408186489) | [Thailand Greenhouse Gas Management Organization](https://appshunter.io/developer/938564036) |

## What reviewers say

### SIRIRAJ CAMPUS ALUMNI

[App page](https://appshunter.io/ios/app/siriraj-campus-alumni/id1453346479)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZERO CARBON TH

[App page](https://appshunter.io/ios/app/zero-carbon-th/id6468645997)

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

**In-app purchases:** none


## Frequently asked questions

### Is SIRIRAJ CAMPUS ALUMNI free?

SIRIRAJ CAMPUS ALUMNI is free to download, with no in-app purchases.

### Is ZERO CARBON TH free?

ZERO CARBON TH is free to download, with no in-app purchases.

### Do SIRIRAJ CAMPUS ALUMNI or ZERO CARBON TH have ads?

Neither SIRIRAJ CAMPUS ALUMNI nor ZERO CARBON TH shows ads.

---

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