# Misri Calendar vs Waterloo Athan

The clearest difference is update cadence: Misri Calendar at every 4 months against Waterloo Athan's every 31 months. Waterloo Athan's advantage is iOS requirement (10.0 vs 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.

Misri Calendar ships an update every 4 months, Waterloo Athan every 31 months. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Misri Calendar | Waterloo Athan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/misri-calendar/id795991730/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 31 months |
| Monetization | Free | — |
| Size | 19 MB | 13 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shehzaad Nakhoda](https://appshunter.io/developer/795991733) | [Ahmad Abdullah](https://appshunter.io/developer/873693566) |

## What reviewers say

### Misri Calendar

[App page](https://appshunter.io/ios/app/misri-calendar/id795991730)

This app provides accurate conversions between the Gregorian and the fixed Fatimid Islamic Hijri (Misri) calendar. View both calendars side-by-side to easily plan around important Hijri dates.

**Highlights:** Gregorian to Hijri conversion, Hijri to Gregorian conversion, Side-by-side calendar view, Verified accuracy, Standard calendar format

**Features:** macOS Compatibility

**In-app purchases:** none


### Waterloo Athan

[App page](https://appshunter.io/ios/app/waterloo-athan/id892073912)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Misri Calendar free?

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

### Is Waterloo Athan free?

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

### Do Misri Calendar or Waterloo Athan have ads?

Neither Misri Calendar nor Waterloo Athan shows ads.

### Which is updated more often, Misri Calendar or Waterloo Athan?

Misri Calendar ships an update every 4 months, and Waterloo Athan every 31 months. Most recently, Misri Calendar was updated on October 8, 2026 and Waterloo Athan on October 10, 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.*