SIGMO vs Shift Calendar, Work Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SIGMO
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SIGMO App connects to an existing SIGMO instance (available from release version 3.2 upwards). This app requires a valid account for a SIGMO instance. - Aircraft status - Maintenance (work requests) - AOG Status - Airport List & Briefing - Arrival/Departure List (Schedule) Any AOG status update or work request for line maintenance engineers arrive with push notifications. The aircraft status and airport briefing are also available in offline mode. Data protection directive of the airline operator applies.
Shift Calendar, Work Calendar
Manage your work schedule and track earnings with this comprehensive shift work manager. Easily add shifts, set up custom rotations, and calculate wages accurately. Export earnings reports to CSV for accounting or sharing.
- Effortless shift management
- Custom rotation setup
- Comprehensive wage tracking
- Accurate earnings calculation
- Detailed earnings reports
- CSV export for reports
- On-device privacy
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Your All-in-One Shift Work Manager Take control of your shift work schedule with Shifty! Whether you’re juggling multiple shifts or managing rotations, ShiftTrack makes it easy to stay organized and track your hard-earned wages. Key Features: - Effortless Shift Management: Add shifts and set up custom rotations with just a few taps. - Comprehensive Wage Tracking: Define standard, overtime, and night shift wages to calculate earnings accurately. - Earnings Reports at Your Fingertips: Access detailed reports to see exactly how much you’ve earned. - Export to CSV: Need your data for accounting or sharing? Export earnings reports to CSV format anytime. - On-Device Privacy: Your data stays secure on your device—no cloud storage or third-party access. Perfect for shift workers, freelancers, or anyone with a variable work schedule, Shifty ensures you’re always on top of your work-life balance. Premium Access: The free version of the app supports managing up to two shifts and one rotation. Unlock unlimited shifts and rotations by upgrading to the Premium version. Choose the plan that works best for you: opt for a one-time purchase or subscribe with an auto-renewable plan for added flexibility. The auto-renewable subscription beings with a free trial period (3 days for monthly subscriptions and 1 week for yearly subscriptions). Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Privacy Policy: https://github.com/bessayahf/Privacy-Policy/blob/main/shifty.md Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Shift Calendar, Work Calendar at Free against SIGMO's $1.99. SIGMO's advantage is in-app purchases (none vs 3) and update cadence (every 5 weeks vs every 3 months). On 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
Shift Calendar, Work Calendar is free to download; SIGMO costs $1.99 up front. Shift Calendar, Work Calendar sells 3 in-app purchases, starting at $3.99 per month. SIGMO asks for nothing beyond the download.
SIGMO ships an update every 5 weeks, Shift Calendar, Work Calendar every 3 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | SIGMO | Shift Calendar, Work Calendar |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 4.7 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 5 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 25 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Manuel Javorik | Faycal Bessayah |
In-app purchases
SIGMO
No in-app purchases
Shift Calendar, Work Calendar
- Monthly Subscription3 Days trial$3.991 Month
- Yearly Subscription7 Days trial$12.991 Year
- Lifetime Purchase$24.99
Questions
Is SIGMO free?
Is Shift Calendar, Work Calendar free?
Do SIGMO or Shift Calendar, Work Calendar have ads?
Which is updated more often, SIGMO or Shift Calendar, Work Calendar?
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