Comparison

SubStandard vs Flight Bag for Crews

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

Head to head
About

SubStandard

This aviation utility app simplifies applying cold temperature corrections for altitudes. It allows users to save frequently used altitude sets for rapid retrieval, enhancing efficiency in flight planning.

Highlights
  • Cold temperature corrections
  • Altitude set storage
  • Quick access to saved altitudes
  • Easy to use interface
Features
Read full description

SubStandard is an easy to use app to apply cold temperature corrections in aviation. Moreover, it lets you store sets of altitudes for quick access later on.

About

Flight Bag for Crews

This aviation app streamlines flight preparation and organization for pilots and aviation enthusiasts. It offers quick access to essentials, smart tools for flight prep, and a clean interface. Free and Pro versions are available, with advanced calculations for professionals.

Highlights
  • Aviation essentials and references
  • Smart flight preparation tools
  • Clean, minimal interface
  • Advanced calculations (Pro)
  • Free and Pro versions
Features
Read full description

Built by a professional airline pilot, Flight Bag is designed to simplify flight preparation and bring essential aviation tools, calculators, and references together in one place. Whether you're an airline pilot, flight instructor, student pilot, dispatcher, or aviation enthusiast, Flight Bag gives you quick access to practical tools and aviation information whenever you need them. Designed with a clean and intuitive interface, Flight Bag helps you spend less time searching and more time focusing on what matters. FEATURES - Aviation calculators for everyday flight operations - Wind and runway calculation tools - Logbook tools and utilities - Flight planning and operational references - Quick access to essential aviation information - Clean, fast, and easy-to-use interface - Regular updates with new tools, features, and improvements BUILT FOR THE AVIATION COMMUNITY Flight Bag is continuously evolving based on real-world experience and feedback from the aviation community. New tools and improvements are regularly added to make the app an increasingly useful companion for aviation professionals, students, and enthusiasts. Whether you're preparing for a flight, studying, reviewing operational information, or keeping track of your flying, Flight Bag puts useful aviation tools right at your fingertips. Fly smarter. Stay organized. Safe flights! Terms of Use: https://captaintech.space/flightBagEULA.html Privacy Policy: https://captaintech.space/flightBagPrivacy.html

Screenshots

SubStandard4 screens
Flight Bag for Crews4 screens

Verdict

The call

The clearest difference is in-app purchases: SubStandard at none against Flight Bag for Crews's 3. SubStandard also leads on iOS requirement (12.0 vs 18.0). Flight Bag for Crews's advantage is update cadence (every 2 months vs every 7 months) and ratings volume (26 vs 2). 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. Flight Bag for Crews sells 3 in-app purchases, starting at $1.99 per month. SubStandard 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 SubStandard against 5.0 for Flight Bag for Crews. That said, the two scores are not equally well evidenced: Flight Bag for Crews has 26 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

SubStandard ships an update every 7 months, Flight Bag for Crews every 2 months. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
SubStandard versus Flight Bag for Crews: the parameters behind the verdict, then further details
ParameterSubStandardFlight Bag for Crews
PriceFreeFree
Rating5.0 (2 ratings) — better5.0 (26 ratings)
Positive reviews0.0% of reviews—
Number of ratings226 — better
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.0
Further details — not scored
Size33 MB20 MB
Age rating4+4+
DeveloperiService Ottner RöckNazmi Yavuz

Customer experience

SubStandard

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Flight Bag for Crews

All ratings26 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SubStandard

No in-app purchases

3 purchases

Flight Bag for Crews

Subscriptions2
  • Monthly Auto Subscription7 Days trial$1.991 Month
  • One Year Auto Subscription1 Month trial$9.991 Year
One-time1
  • Lifetime Access$19.99

Questions

Is SubStandard free?
SubStandard is free to download, with no in-app purchases.
Is Flight Bag for Crews free?
Flight Bag for Crews is free to download, with in-app purchases available.
Which has better reviews, SubStandard or Flight Bag for Crews?
SubStandard is rated higher. SubStandard averages 5.0 out of 5 from 2 ratings, while Flight Bag for Crews averages 5.0 from 26 ratings.
Do SubStandard or Flight Bag for Crews have ads?
Neither SubStandard nor Flight Bag for Crews shows ads.
Which is updated more often, SubStandard or Flight Bag for Crews?
SubStandard ships an update every 7 months, and Flight Bag for Crews every 2 months. Most recently, SubStandard was updated on November 3, 2026 and Flight Bag for Crews on November 3, 2026.

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