Comparison

APDL vs Rest Break Optimizer

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

Head to head
About

APDL

This app serves as a comprehensive daily logbook for airline pilots, built by pilots for pilots. It offers detailed legality calculations, duty time management, schedule importing, and payroll tracking, all while ensuring compliance with Part 117 regulations.

Highlights
  • Part 117 legality calculations
  • Duty time management
  • Payroll tracking and calculator
  • Schedule importing
  • Flight logging and updates
  • Customizable status board
  • Exportable reports
Features
Read full description

FIRST 90 DAYS FREE for new users. APDL is the airline pilot logbook built by airline pilots, for airline pilots. Designed specifically for Part 117 scheduled operations, APDL combines your logbook with real-time legality, duty and rest tracking, payroll, and schedule importing in one app. LEGALITY & DUTY - Complete 14 CFR Part 117 coverage with up-to-the-minute legality calculations - What-If legality calculations to see how changes affect you - Color-coded legality and projected delay status - Duty and rest charts with color-coded progress bars - Latest Available Takeoff Time (LATT) using planned taxi-out, enroute, and taxi-in times - Automatic duty adjustments based on your report/release settings - Default rest facility support - FAR 1.1 flight time and automatic night calculation SCHEDULE IMPORT - FREE schedule importer supporting 200+ airline formats with time zone support - Direct Flight Crew View integration - Safari share extension for quick importing - Sync flights to the calendar of your choice - Schedule and Calendar views for monthly duty review; tap to add duty LOGGING & TRIP SHEET - Familiar trip sheet format showing gates, turn times, aircraft changes, and projected delays - Cloud data automatically fills in gates, aircraft, and OOOI times - Gate and equipment change notifications - CrossCheck validator flags incomplete or inaccurate entries - Aircraft photos synced across devices - Export flights on APDL.net for import into Logbook Pro STATUS BOARD, WIDGETS & ALERTS - Customizable Status Board with widgets for each duty phase, including LATT and EDCT - Home Screen widgets, Dynamic Island, Live Activities, and CarPlay - Alerts for legality changes, ready-to-fly status, and hotel van departures COMMUTING & TRAVEL - Advanced commute tools and deadhead flight search - Tap a search result to view flight options in FlightAware - Hotel management - Leg resources for EDCT, airport diagrams, and more WEATHER - TAF, METAR, and decoded summaries - Weather map with planned and actual overlays; tap endpoints for weather and FAA delay info PAYROLL & REPORTS - Detailed payroll tracking and calculator - Pay period charts with trip and cumulative totals - Payroll and summary views - On-time performance reporting - Exportable reports in the app and on APDL.net; use Handoff to open reports in your Mac browser - Automatic résumé generation DATA & SYNC - Sync across all your devices with automatic online backup included - Data organized by airline/employer, with archiving - Extensive settings for complete customization Share APDL with fellow crewmembers from the app menu. Subscriptions do not auto-renew. Purchases are charged to your Apple Account. Subscription terms and pricing are available under My Account in the app. Privacy Policy: https://nc-software.com/privacy Terms of Use: https://nc-software.com/tos APDL is a registered trademark of NC Software, Inc.

About

Rest Break Optimizer

This app helps flight crews calculate optimal rest breaks and manage work schedules. It offers multiple break patterns and displays schedules graphically, including circadian low information, to minimize fatigue and maximize rest quality.

Highlights
  • Multi break pattern options
  • Automatic schedule updates
  • Compact textual and graphical displays
  • Window of Circadian Low (WOCL) information
  • Save and share flight schedules
  • Extensive airport database
Features
Read full description

Crew Rest Optimizer is a comprehensive application to calculate pilot rest breaks and help crews optimize break and work schedules. • Multi break patterns and options are available with just one tap. • Only four entries are needed to generate a break schedule. • Changes to any input automatically updates the break schedule. • Break schedules can be viewed in both a compact textual format and two expanded graphical displays (break & work). • The graphical displays provide Window of Circadian Low (WOCL) and on duty time information for each pilot. Use this information to determine an optimum break schedule with the highest quality of rest and lowest on duty fatigue. Key features Flights (break schedules) • Save flights • Create a return flight or add the next flight with a swipe • Customize Pilot information (Name, WOCL rest time zone, assigned break) • Multi break options (LLSS, LSSL, SLLS, SSLL, SLS, Equal) • Share PDF of graphical break and work schedules (Email, Airport, etc.) Airports • Built in extensive list of international airports with time zone • Add your own airports • Save airports as a Favorite Reference • Guide to understanding the science behind inflight rest and fatigue Help • Help on using the application and features with graphics to grasp the concept quickly Settings • Customize the program to the way you use it

Screenshots

APDL4 screens
Rest Break Optimizer4 screens

Verdict

The call

The clearest difference is rating: APDL at 4.4 against Rest Break Optimizer's 3.2. APDL also leads on ratings volume (984 vs 9) and review sentiment (37% vs 25%). Rest Break Optimizer's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 18.0). On price, update cadence, 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. APDL sells 4 one-off in-app purchases. Rest Break Optimizer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

APDL holds the better App Store score, 4.4 against 3.2. That said, the two scores are not equally well evidenced: APDL has 984 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 37% of APDL's written reviews are positive against 25% of Rest Break Optimizer's.

UpkeepUpdate frequency

APDL ships an update every 4 months, Rest Break Optimizer every 2 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
APDL versus Rest Break Optimizer: the parameters behind the verdict, then further details
ParameterAPDLRest Break Optimizer
PriceFreeFree
Rating4.4 (984 ratings) — better3.2 (9 ratings)
Positive reviews36.9% of reviews — better25.0% of reviews
Number of ratings984 — better9
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size210 MB27 MB
Age rating4+4+
DeveloperNC Software, Inc.SPR Technical Services LLC

Customer experience

APDL

All ratings983 ratings
Positive85.0%
Neutral5.0%
Negative10.0%
Written reviews65 reviews
Positive36.9%
Neutral15.4%
Negative47.7%

Rest Break Optimizer

All ratings9 ratings
Positive55.6%
Neutral0.0%
Negative44.4%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Bugs and requests

APDL

Reported bugs

3 issues
  • Logbook data loss and login issues
  • Unreliable schedule import and date changes
  • Commute flight information duplication

Requested features

4 requests
  • Improved schedule import and sync capabilities
  • Support for Part 135 and cargo operations
  • Automatic sync with Logbook Pro
  • Enhanced reporting and data export options

Rest Break Optimizer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

APDL

One-time4
  • APDL 30 Days$51.99
  • APDL 3 Months$103.99
  • APDL 6 Months$151.99
Show 1 more
  • APDL 1 Year$199.99
None

Rest Break Optimizer

No in-app purchases

Questions

Is APDL free?
APDL is free to download, with in-app purchases available.
Is Rest Break Optimizer free?
Rest Break Optimizer is free to download, with no in-app purchases.
Which has better reviews, APDL or Rest Break Optimizer?
APDL is rated higher. APDL averages 4.4 out of 5 from 984 ratings, while Rest Break Optimizer averages 3.2 from 9 ratings.
Do APDL or Rest Break Optimizer have ads?
Neither APDL nor Rest Break Optimizer shows ads.
Which is updated more often, APDL or Rest Break Optimizer?
APDL ships an update every 4 months, and Rest Break Optimizer every 2 months. Most recently, APDL was updated on November 1, 2026 and Rest Break Optimizer on October 29, 2026.

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