EU vs SubStandard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EU
This app provides information on European Union flight time limitations (FTLs) for pilots. It was available for free until February 2016, with continued support until April 2016.
- EU-OPS support
- Flight time limitation information
- Pilot resource
- Free availability (until Feb 2016)
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This App is approaching a full stop landing February 2016 with the launch of the new EASA FTLs. Until then it is available for free. My new app 'EASA vs Airline FTL' has hit the app store. It has been rewritten from scratch, it's universal (now for iPad too!) with many major improvements. It also supports EU-OPS, so it is of use for you from now on. Please read about details there. Please click on the developer's name (Alexander Flohr) or search for 'EASA vs Airline' Thank you for using my EU-OPS apps until now, they will continue to be supported until April/2016.
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.
Screenshots
Verdict
The clearest difference is review sentiment: EU at 100% against SubStandard's 0%. EU also leads on update cadence (monthly vs every 7 months) and iOS requirement (7.0 vs 12.0). On price, ads, in-app purchases and monetization model 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.
EU ships an update monthly, SubStandard every 7 months. The most recent releases landed on September 25, 2026 and October 6, 2026 respectively.
| Parameter | EU | SubStandard |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 37 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Flohr | iService Ottner Röck |
Customer experience
EU
SubStandard
In-app purchases
EU
No in-app purchases
SubStandard
No in-app purchases
