Comparison

Shift Work Calendar vs Mesllah

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Shift Work Calendar

Manage your work schedule, track overtime hours, and organize personal events with this comprehensive calendar app. It automatically logs extra hours based on labor laws and offers flexible views for planning. Personal events are stored securely on your device.

Highlights
  • Shift work schedule management
  • Automatic overtime tracking
  • Personal event organization
  • National holiday display
  • Multiple calendar views
  • Flexible shift swapping
Features
Read full description

ZAM Calendar is a shift work calendar that helps you manage your work schedule, organize personal events, and view national holidays. All-in-One Calendar - Shift schedules - National holidays - Personal events - Apple Calendar integration Flexible Shift Swapping Need to change one day? Swap a shift without changing the rest of your schedule. Connect Apple Calendar With your permission, ZAM Calendar displays your personal events directly from Apple Calendar alongside your shifts. Privacy First Your personal events remain in Apple Calendar on your device. We never upload, save, or store your personal calendar data on our servers. Clean and Simple Views - Monthly Calendar: View color-coded shifts and events in a clear monthly layout. - Daily Details: Tap any day to see its shifts and events. - Widget: See your shifts and events at a glance. - Holiday List: View all national holidays in one place. Subscription Required A monthly or yearly subscription is required to use ZAM Calendar. - Yearly plan: Renews automatically each year. - Monthly plan: Renews automatically each month. Subscriptions renew unless canceled at least 24 hours before the end of the current billing period. Cancel Anytime You can cancel your subscription on your iPhone by going to Settings > Your Name > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://zamcalendar.com/policies/privacy-policy Need Help? Contact us from ZAM Calendar by going to Settings > Email Support & Feedback, or email us at support@zamcalendar.com. Thank You We put a lot of care into ZAM Calendar and read every review. If you enjoy the app, please leave a review.

About

Mesllah

Manage your livestock farm efficiently with this smart system. Track animal details, employee data, invoices, and mating requests. Receive alerts for feed and medications, and maintain historical records for each animal.

Highlights
  • Animal registration and tracking
  • Employee data and salary management
  • Invoice recording
  • Mating request management
  • Historical animal records
  • Birth certificate generation
  • Feed and medication alerts
  • Buying and selling section
Features
Read full description

Muslah is a smart management system, the first of its kind in the world, developed using cutting-edge technologies and highly flexible, integrated scenarios for managing and developing livestock. * Register your animals and track every detail, from production and feed to medications and vaccinations. * Manage employee data and salaries. * Easily record your invoices. * Make mating requests easier. * Maintain a historical record for each animal. * Receive birth certificates for newborns. * Get alerts regarding feed and medications. * A section for buying and selling.

Screenshots

Shift Work Calendar4 screens
Mesllah4 screens

Verdict

The call

The clearest difference is in-app purchases: Mesllah at none against Shift Work Calendar's 2. Mesllah also leads on iOS requirement (15.0 vs 26.0). Shift Work Calendar's advantage is update cadence (every 2 days vs every 2 weeks) and ratings volume (5 vs 1). On price, rating, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Shift Work Calendar sells 2 in-app purchases, starting at $1.49 per month. Mesllah asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Shift Work Calendar against 5.0 for Mesllah. That said, the two scores are not equally well evidenced: Shift Work Calendar has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Shift Work Calendar ships an update every 2 days, Mesllah every 2 weeks. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
Shift Work Calendar versus Mesllah: the parameters behind the verdict, then further details
ParameterShift Work CalendarMesllah
PriceFreeFree
Rating5.0 (5 ratings)5.0 (1 ratings)
Positive reviews66.7% of reviews—
Number of ratings5 — better1
Update frequencyEvery 2 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size46 MB41 MB
Age rating4+12+
DeveloperCOMPANY DAMA CODE FOR INFORMATION TECHNOLOGY (ONE PARTNER)Abdullah Alotaibi

Customer experience

Shift Work Calendar

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Mesllah

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Shift Work Calendar

Subscriptions2
  • Monthly7 Days trial$1.491 Month
  • Yearly14 Days trial$9.991 Year
None

Mesllah

No in-app purchases

Questions

Is Shift Work Calendar free?
Shift Work Calendar is free to download, with in-app purchases available.
Is Mesllah free?
Mesllah is free to download, with no in-app purchases.
Which has better reviews, Shift Work Calendar or Mesllah?
Shift Work Calendar and Mesllah are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.
Do Shift Work Calendar or Mesllah have ads?
Neither Shift Work Calendar nor Mesllah shows ads.
Which is updated more often, Shift Work Calendar or Mesllah?
Shift Work Calendar ships an update every 2 days, and Mesllah every 2 weeks. Most recently, Shift Work Calendar was updated on October 24, 2026 and Mesllah on October 24, 2026.

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