# Khmer Calendar vs Light OS

The clearest difference is price: Light OS at Free against Khmer Calendar's $2.99. Light OS also leads on update cadence (every 2 weeks vs every 3 months). Khmer Calendar's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 16). On ads and in-app purchases there is nothing between them.

Light OS is free to download; Khmer Calendar costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Khmer Calendar ships an update every 3 months, Light OS every 2 weeks. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Khmer Calendar | Light OS |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.5 (93 ratings)](https://appshunter.io/ios/app/khmer-calendar/id657209829/reviews)** | — |
| Number of ratings | **93** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 41 MB | 1 MB |
| Requires iOS | **13.0** | 16 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ngov chiheang](https://appshunter.io/developer/656731821) | [Shaoxing Shangyu Miyi Photography Equipment Co.,Ltd](https://appshunter.io/developer/1798727462) |

## What reviewers say

### Khmer Calendar

[App page](https://appshunter.io/ios/app/khmer-calendar/id657209829)

This utility app provides a comprehensive Khmer Lunar Calendar with over 1000 years of data. It features yearly and monthly views, holiday search, dark mode, and customizable notifications for events and notes.

**Highlights:** 1000+ years of Khmer Lunar Calendar, Yearly and monthly views, Holiday and event search, Dark mode, Chinese lunar calendar, Note-taking with notifications

**In-app purchases:** none


### Light OS

[App page](https://appshunter.io/ios/app/light-os/id6742537949)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Khmer Calendar free?

Khmer Calendar costs $2.99, with no in-app purchases.

### Is Light OS free?

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

### Do Khmer Calendar or Light OS have ads?

Neither Khmer Calendar nor Light OS shows ads.

### Which is updated more often, Khmer Calendar or Light OS?

Khmer Calendar ships an update every 3 months, and Light OS every 2 weeks. Most recently, Khmer Calendar was updated on October 12, 2026 and Light OS on October 11, 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.*