ShamsiCal vs German Labs Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShamsiCal
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.
- Accurate Persian calendar engine
- Gregorian to Persian date conversion
- Official holiday tracking
- Home Screen widgets
- Lock Screen widgets
- Dark Mode support
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ShamsiCal keeps the Persian calendar within reach, from your Home Screen to your wrist. See today’s Persian date at a glance, browse the full month, and convert between Persian and Gregorian dates. Keep track of occasions and calendar events with widgets that fit naturally into your day. Key Features: - Persian calendar with official holidays and easy month navigation - Calendar events alongside Persian occasions - Built-in Persian and Gregorian date converter - Home Screen and Lock Screen widgets, including larger month and agenda layouts - Siri and Shortcuts actions for quick access to calendar features - Keyboard shortcuts on iPad for common actions - Native design with Liquid Glass on supported versions - Dark Mode support On Apple Watch: - Today’s date with a background inspired by the current season - Digital Crown scrolling from today’s details to the full month - Easy navigation between months - Widgets with seasonal backgrounds and complications for quick date checks Your Persian calendar, always within reach.
German Labs Authenticator
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German Labs Authenticator lets you verify the authenticity of your German Labs products in seconds. Simply enter the unique code found on your product and instantly confirm whether it is genuine or not. Protect yourself from counterfeit supplements and buy with confidence. No account required. No purchases. Just fast, reliable product verification. Visit us at thegermanlabsmx.com
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ShamsiCal | German Labs Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (176 ratings) — better | — |
| Positive reviews | 84.8% of reviews | — |
| Number of ratings | 176 — better | — |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac, Apple Watch, Vision Pro — better | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 15 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Alireza Khoddam | Ivanna Alarcon Arenas |
Bugs and requests
ShamsiCal
Reported bugs
8 issues- 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
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- Widget not visible in notification center
- Scrolling/jumping issues on iPhone 6
- Settings cannot be changed on some devices
Requested features
16 requests- 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
Show 11 moreShow fewer
- Highlight holidays in red color
- Add Persian digital clock widget
- Implement widget color customization
- Add font customization options
- Support for Farsi digital fonts (e.g., B Nazanin)
- Restore English language widget option
- Add live widget that updates without opening app
- Include more widget design variations
- Add feedback/contact section in app
- Fix Islamic calendar date accuracy
- Add Afghan cultural events and occasions
German Labs Authenticator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ShamsiCal
No in-app purchases
German Labs Authenticator
No in-app purchases
Questions
Is ShamsiCal free?
Is German Labs Authenticator free?
Do ShamsiCal or German Labs Authenticator have ads?
Which is updated more often, ShamsiCal or German Labs Authenticator?
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