SubStandard vs Compass Pilot Selection
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.
Compass Pilot Selection
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The COMPASS app introduces the concept of remote testing by allowing candidates to take their assessments from virtually anywhere in the world, with internet access only required to login and upload results. The COMPASS app contains several tests that assess the student cognitive, eye hand coordination and personality. COMPASS software provides ATOs and Airlines with the tools to efficiently and reliably select candidate pilots, ranging from students to experienced aviators. Our in-house development team is also dedicated to releasing frequent updates, including new features and important bug fixes, based on the valuable feedback our support team receives. A client account or token that is supplied by invitation is required to gain access to our pilot selection services. If you are an ATO, Airline or Training Organization and would like to create an account or would like to receive more information about the product, please contact Compass.
Screenshots
Verdict
The clearest difference is update cadence: Compass Pilot Selection at fortnightly against SubStandard's every 7 months. SubStandard's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 15.0). On price, ads and in-app purchases 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.
SubStandard ships an update every 7 months, Compass Pilot Selection fortnightly. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.
| Parameter | SubStandard | Compass Pilot Selection |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 33 MB | 226 MB |
| Age rating | 4+ | 17+ |
| Developer | iService Ottner Röck | Compass International BV |
In-app purchases
SubStandard
No in-app purchases
Compass Pilot Selection
No in-app purchases
Questions
Is SubStandard free?
Is Compass Pilot Selection free?
Do SubStandard or Compass Pilot Selection have ads?
Which is updated more often, SubStandard or Compass Pilot Selection?
Other comparisons
