# SubStandard vs Flight Bag for Crews

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.

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.

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.

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

## The numbers

| Metric | SubStandard | Flight Bag for Crews |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/substandard/id1513656520/reviews)** | [5.0 (26 ratings)](https://appshunter.io/ios/app/flight-bag-for-crews/id1581403359/reviews) |
| Number of ratings | 2 | **26** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 33 MB | 20 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iService Ottner Röck](https://appshunter.io/developer/1413717324) | [Nazmi Yavuz](https://appshunter.io/developer/1574077750) |

## What reviewers say

### SubStandard

[App page](https://appshunter.io/ios/app/substandard/id1513656520)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Flight Bag for Crews

[App page](https://appshunter.io/ios/app/flight-bag-for-crews/id1581403359)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Auto Subscription | $1.99 | per month |
| One Year Auto Subscription | $9.99 | per year |
| Lifetime Access | $19.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*