CTL vs Duty Time
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CTL
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Car Technical Log (CTL) brings the discipline of aviation record-keeping to your car. Whether you're a car enthusiast, a fleet manager, or just someone who wants to stay on top of maintenance — CTL gives you a clear, organized history of everything that happens to your vehicle. WHAT YOU CAN LOG • Maintenance & repairs — oil changes, brake jobs, tyre rotations, and any service work, with costs, shop details, and warranty info • Technical inspections — MOT, roadworthy checks, and scheduled inspections with next-due reminders • Faults & warning lights — log dashboard warning lights the moment they appear, track them until resolved • Corrective actions — close out faults by linking them directly to a repair record YOUR CAR'S FULL HISTORY AT A GLANCE Every event is shown in a clean timeline so you can see exactly what was done, when, and at what cost. Filter by maintenance, inspections, or faults. See what's active and what's been resolved. NEVER MISS A SERVICE Upcoming inspections and due services surface on your home screen automatically, so nothing slips through the cracks. MULTIPLE VEHICLES Start with up to 2 vehicles for free. Upgrade to CTL Fleet for unlimited vehicles — perfect for families or small fleets. CTL FLEET SUBSCRIPTION • Unlimited vehicles • $2.99/month, $19.99/year, or $24.99 one-time lifetime purchase • Subscriptions managed through your Apple ID • Cancel anytime WHO IT'S FOR? CTL is built for people who take their vehicles seriously — not just mechanics, but owners who want a professional record of their car's life. Think of it as a passport for your car. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Duty Time
This application helps aviation professionals calculate flight duty periods, rest periods, and cumulative limits according to EASA regulations. It offers offline functionality and supports single, augmented, and double crew configurations for accurate operational planning.
- Flight Duty Period (FDP) calculation
- Rest period calculation
- Cumulative limits tracking
- Split duty and standby tools
- Offline functionality
- EASA ORO.FTL regulation compliance
- Dark and light mode support
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DUTY TIME - THE PROFESSIONAL EASA FTL CALCULATOR Duty Time is the most complete EASA ORO.FTL calculator available for iOS. Whether you are planning a long-haul augmented operation or checking your 28-day block hours before signing a roster, Duty Time gives you instant, accurate answers - offline, with no account required. FDP CALCULATOR Know your maximum Flight Duty Period before every flight. - Single, Augmented (3-pilot), and Double (4-pilot) crew - Automatic WOCL detection for start and end encroachment - All 7 extension rules applied correctly, including sector limits with WOCL encroachment and night-start cap (FDP capped at 11:45h when starting 22:00-04:59) - Rest facility class for augmented and double crew (Class 1, 2, 3) - Latest Chocks-On time displayed so you know exactly when the aircraft must be at the gate - Results update live as you adjust inputs REST PERIOD CALCULATOR Never second-guess your minimum rest again. - Home base and away from base calculations - Time zone difference penalty (+1h per hour of difference, 4h or more) - Returning to home base chart: 4 TZ = 24h, 5-8 TZ = 36h, 9+ TZ = 48h - Augmented and Double crew sector penalty (+6h for more than 2 sectors) - FDP extension penalty: pre+post +2h each, or post-flight only +4h - Next possible report time shown clearly with date and day label CUMULATIVE LIMITS TRACKER Stay ahead of your limits before your roster catches up with you. - Block hours: 100h in any 28 days, 900h in a calendar year - Duty hours: 60h in any 7 days, 190h in any 28 days - FDP extension counter: maximum 2 in any 7 consecutive days - Color-coded progress bars: green, caution, near limit, exceeded - Log duty entries with block time, duty time, and extension usage SPLIT DUTY AND STANDBY Two tools in one screen. - Split Duty: validates combined FDP (max 10h), break duration (3-10h required), and shows remaining buffer - Airport Standby: calculates FDP reduction for standby time exceeding 6 hours - Live hints update as you type WHY DUTY TIME - 100% offline, works in the cockpit without any internet connection - No account, no login, no personal data collected - Covers all three crew configurations: Single, Augmented, and Double - Dark mode and light mode, follows your iPhone system setting - Built and verified against EASA ORO.FTL regulation text - Clean, fast, and designed for real operational use REGULATIONS COVERED - ORO.FTL.205 - Flight Duty Period limitations - ORO.FTL.210 - Rest period requirements - ORO.FTL.215 - Standby - ORO.FTL.235 - Cumulative flight time and duty period limitations Regulation reference: Commission Regulation (EU) No 83/2014 DISCLAIMER This app is a calculation aid and reference tool. It does not replace your airline's Operations Manual or official crew control systems. Pilots remain solely responsible for ensuring compliance with applicable regulations and company procedures. Always verify with your crew control department when in doubt. SUPPORT Questions or feedback: support@yallawin.net (c) 2025 Machkit LTD. All rights reserved.
Screenshots
Verdict
The clearest difference is price: CTL at Free against Duty Time's $4.99. CTL also leads on iOS requirement (15.1 vs 18.1). Duty Time's advantage is in-app purchases (none vs 3). 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
CTL is free to download; Duty Time costs $4.99 up front. CTL sells 3 in-app purchases, starting at $2.99 per month. Duty Time asks for nothing beyond the download.
| Parameter | CTL | Duty Time |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.1 |
| Further details — not scored | ||
| Size | 49 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohammed Kashour | Machkit LTD |
In-app purchases
CTL
- CTL Fleet Monthly$2.991 Month
- CTL Fleet Annual$19.991 Year
- CTL Fleet Lifetime$24.99
Duty Time
No in-app purchases









