# GDT Calendar vs Canadia Authentication App

The clearest difference is iOS requirement: GDT Calendar at 10.0 against Canadia Authentication App's 15.0. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | GDT Calendar | Canadia Authentication App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (10 ratings)](https://appshunter.io/ios/app/gdt-calendar/id926656830/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free | — |
| Size | 15 MB | 6 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [General Department of Taxation](https://appshunter.io/developer/923910706) | [Canadia Bank Plc.](https://appshunter.io/developer/894465379) |

## What reviewers say

### GDT Calendar

[App page](https://appshunter.io/ios/app/gdt-calendar/id926656830)

This app provides a comprehensive guide to Cambodia's tax return deadlines and public holidays. It details the start and end dates for various tax types, offering timely alerts for self-assessment taxpayers. Stay informed about important dates for patent tax, VAT, and more.

**Highlights:** Tax return start and deadline notifications, Alerts for self-assessment system, Covers various tax types (Patent, VAT, Profit, etc.), Includes Cambodia public holidays, Lists Buddhist days, Information on Property Tax and Withholding Tax

**Features:** macOS Compatibility

**In-app purchases:** none


### Canadia Authentication App

[App page](https://appshunter.io/ios/app/canadia-authentication-app/id6502924320)

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

**In-app purchases:** none


## Frequently asked questions

### Is GDT Calendar free?

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

### Is Canadia Authentication App free?

Canadia Authentication App is free to download, with no in-app purchases.

### Do GDT Calendar or Canadia Authentication App have ads?

Neither GDT Calendar nor Canadia Authentication App shows ads.

### Which is updated more often, GDT Calendar or Canadia Authentication App?

GDT Calendar ships an update every 5 months, and Canadia Authentication App every 5 months. Most recently, GDT Calendar was updated on September 28, 2026 and Canadia Authentication App on September 29, 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.*