# ShamsiCal vs German Labs Authenticator

The clearest difference is update cadence: German Labs Authenticator at weekly against ShamsiCal's every 5 weeks. ShamsiCal's advantage is device support (5 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ShamsiCal ships an update every 5 weeks, German Labs Authenticator weekly. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ShamsiCal | German Labs Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (176 ratings)](https://appshunter.io/ios/app/shamsical/id918251515/reviews)** | — |
| Number of ratings | **176** | — |
| Positive reviews | 84.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 15 MB | 32 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad, Mac, Apple Watch, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alireza Khoddam](https://appshunter.io/developer/1628586418) | [Ivanna Alarcon Arenas](https://appshunter.io/developer/1896688564) |

## What reviewers say

### ShamsiCal

[App page](https://appshunter.io/ios/app/shamsical/id918251515)

Easily view and manage the Persian calendar with accurate date conversions and official holidays. Get instant access to daily and monthly views through home and lock screen widgets. Enjoy a clean, native iOS design with full dark mode support.

**Highlights:** Accurate Persian calendar engine, Gregorian to Persian date conversion, Official holiday tracking, Home Screen widgets, Lock Screen widgets, Dark Mode support

**Features:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and minimalist design
- ⚡ Lightweight and fast performance
- 🎨 Beautiful and clean UI
- 📱 Excellent widget functionality
- 🔄 Regular updates and quick fixes

**What reviewers complain about**

- ❌ Lacks full calendar month view
- ❌ Cannot navigate between months/years
- ❌ No event or holiday highlighting
- ❌ Limited customization options
- ❌ English widget option removed in recent update

**Reported bugs**

- Islamic calendar displays dates one day ahead
- Widget doesn't appear on iPhone homescreen for some users
- App doesn't update date on homescreen without opening app
- Widget sizing issues in notification center
- Installation fails on some devices

**Requested features**

- Add Iranian holidays and events display
- Add Afghan/Dari language support for month names
- Implement full calendar month view with all days
- Add Apple Watch app and watch face complications
- Allow navigation between months and years


### German Labs Authenticator

[App page](https://appshunter.io/ios/app/german-labs-authenticator/id6769791824)

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

**In-app purchases:** none


## Frequently asked questions

### Is ShamsiCal free?

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

### Is German Labs Authenticator free?

German Labs Authenticator is free to download, with no in-app purchases.

### Do ShamsiCal or German Labs Authenticator have ads?

Neither ShamsiCal nor German Labs Authenticator shows ads.

### Which is updated more often, ShamsiCal or German Labs Authenticator?

ShamsiCal ships an update every 5 weeks, and German Labs Authenticator weekly. Most recently, ShamsiCal was updated on October 21, 2026 and German Labs Authenticator on October 14, 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.*