# EASA FTL Calculator vs SubStandard

The clearest difference is review sentiment: EASA FTL Calculator at 100% against SubStandard's 0%. EASA FTL Calculator also leads on update cadence (every 2 months vs every 7 months). SubStandard's advantage is price (Free vs $1.99) and iOS requirement (12.0 vs 26.1). On ads, in-app purchases and device support there is nothing between them.

SubStandard is free to download; EASA FTL Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EASA FTL Calculator ships an update every 2 months, SubStandard every 7 months. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | EASA FTL Calculator | SubStandard |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/substandard/id1513656520/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Paid | **Free** |
| Size | 7 MB | 33 MB |
| Requires iOS | 26.1 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [William Beal](https://appshunter.io/developer/1315028731) | [iService Ottner Röck](https://appshunter.io/developer/1413717324) |

## What reviewers say

### EASA FTL Calculator

[App page](https://appshunter.io/ios/app/easa-ftl-calculator/id1315028732)

This app provides commercial pilots with instant, accurate calculations for duty time and Flight Duty Period limits according to EU Regulation 83/2014. It supports various extension types and acclimatization states, ensuring compliance with EASA flight time limitations.

**Highlights:** Calculate maximum Flight Duty Period, Determine latest on-blocks time, Support for split duty and in-flight rest extensions, Automatic acclimatization state factoring, Browse and search ORO.FTL regulations, iCloud settings sync across devices

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is EASA FTL Calculator free?

EASA FTL Calculator costs $1.99, with no in-app purchases.

### Is SubStandard free?

SubStandard is free to download, with no in-app purchases.

### Do EASA FTL Calculator or SubStandard have ads?

Neither EASA FTL Calculator nor SubStandard shows ads.

### Which is updated more often, EASA FTL Calculator or SubStandard?

EASA FTL Calculator ships an update every 2 months, and SubStandard every 7 months. Most recently, EASA FTL Calculator was updated on October 26, 2026 and SubStandard on October 31, 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.*