# SL Calendar vs Rooster HR

The clearest difference is update cadence: Rooster HR at every 2 weeks against SL Calendar's every 9 months. Rooster HR also leads on iOS requirement (15.1 vs 17.0). 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.

SL Calendar ships an update every 9 months, Rooster HR every 2 weeks. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SL Calendar | Rooster HR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (52 ratings)](https://appshunter.io/ios/app/sl-calendar/id1192968779/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 52 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Charith Gunasekera](https://appshunter.io/developer/1192968778) | [Rooster Technology](https://appshunter.io/developer/1724556821) |

## What reviewers say

### SL Calendar

[App page](https://appshunter.io/ios/app/sl-calendar/id1192968779)

A simple and reliable holiday calendar app for Sri Lanka, offering public, bank, and mercantile holidays. Supports Sinhala, Tamil, and English, with monthly views, reminders, and custom event additions. Ideal for planning around national holidays.

**Highlights:** Sri Lankan public, bank, and mercantile holidays, Monthly calendar view, Multi-language support (Sinhala, Tamil, English), Notifications and reminders, Custom event creation, Apple Watch support, Home screen widgets

**Features:** macOS Compatibility

**In-app purchases:** none


### Rooster HR

[App page](https://appshunter.io/ios/app/rooster-hr/id6748949821)

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

**In-app purchases:** none


## Frequently asked questions

### Is SL Calendar free?

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

### Is Rooster HR free?

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

### Do SL Calendar or Rooster HR have ads?

Neither SL Calendar nor Rooster HR shows ads.

### Which is updated more often, SL Calendar or Rooster HR?

SL Calendar ships an update every 9 months, and Rooster HR every 2 weeks. Most recently, SL Calendar was updated on October 3, 2026 and Rooster HR on October 2, 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.*