PC vs SubStandard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PC
This tool assists pilots in verifying weight and balance and calculating aircraft performance for various Pilatus PC-12 models. It includes a crosswind calculator and is intended for plausibility checks.
- Weight and balance verification
- Takeoff, climb, cruise, landing performance calculation
- Supports multiple PC-12 aircraft variants
- Crosswind calculator
- Plausibility checks for aircraft data
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The PC-12 Weight & Balance and Performance Calculator (PC-12 Calculator) is a pilot support tool designed to assist in verifying weight and balance, as well as calculating takeoff, climb, cruise, and landing performance for the Pilatus PC-12. It supports the following aircraft variants: PC-12/41, PC-12/45, PC-12/47, PC-12/47E (NG and NGX), and PC-12/47G. The app shall only be used after confirming that the specific aircraft configuration matches the selected version within the PC-12 Calculator. The app also includes a crosswind calculator. This tool is intended solely for plausibility checks of aircraft data. Use of the PC-12 Calculator is at the sole responsibility of the pilot or operator.
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 rating: SubStandard at 5.0 against PC's 3.0. SubStandard also leads on iOS requirement (12.0 vs 16.0). PC's advantage is review sentiment (19% vs 0%). On price, ratings volume, update cadence 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.
SubStandard holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews complicate that: 19% of PC's written reviews are positive against 0% of SubStandard's, so the app with the better star average is not the one people write more warmly about.
PC ships an update every 5 months, SubStandard every 7 months. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.
| Parameter | PC | SubStandard |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 18.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 5 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Pilatus Aircraft Ltd. | iService Ottner Röck |
Customer experience
PC
SubStandard
In-app purchases
PC
No in-app purchases
SubStandard
No in-app purchases
