SubStandard vs Flight Bag
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Cold temperature corrections
- Altitude set storage
- Quick access to saved altitudes
- Easy to use interface
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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.
Flight Bag
This app offers a suite of essential tools for pilots to perform quick and practical calculations. It includes calculators for crew rest, night time, and log time, along with helpful reference guides and conversion tables. Designed for ease of use, it aims to assist pilots with common aviation-related tasks.
- Crew Rest Calculator
- Night Time Calculator
- Cold Temperature Altitude Correction
- Log Time Calculator
- NOTAM Abbreviations
- Approach Path Calculator
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Flight Bag is a complimentary, ad-free, simple and user-friendly application including following tools which are intended to help pilots make practical calculations when needed. Crew Rest Calculator Night Time Calculator Cold Temperature Altitude Correction Drill Codes Emergency Response Guidance Log Time Calculator Abbreviations Stick Time Calculator Metric-Feet Conversion Table (PRC) Approach Path Calculator For any comments, please feel free to contact us via flightbagapp@gmail.com.
Screenshots
Verdict
SubStandard and Flight Bag both sit at 5.0 stars, but that hides the real split: 100% of Flight Bag's written reviews are positive against 0% of SubStandard's. Flight Bag also leads on update cadence (every 3 weeks vs every 7 months). SubStandard's advantage is iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for SubStandard against 5.0 for Flight Bag. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews are what separate them: 0% of SubStandard's written reviews are positive against 100% of Flight Bag's.
SubStandard ships an update every 7 months, Flight Bag every 3 weeks. Both last shipped on November 3, 2026.
| Parameter | SubStandard | Flight Bag |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 2 |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 33 MB | 61 MB |
| Age rating | 4+ | 17+ |
| Developer | iService Ottner Röck | Ugur Sola |
Customer experience
SubStandard
Flight Bag
In-app purchases
SubStandard
No in-app purchases
Flight Bag
No in-app purchases
