SubStandard vs SnapCal+ BOYK
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.
SnapCal+ BOYK
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SnapCal uses OpenAI's vision transformer to extract event details from photos of flyers, posters, and announcements. Simply snap a photo or select an image from your library, and SnapCal automatically identifies the event name, date, time, location, and recurring patterns. With one-tap integration with Apple Calendar and Google Calendar, you'll never manually type event details again. Perfect for conferences, campus events, and networking - just point, shoot, and add to your calendar in seconds.
Screenshots
Verdict
The clearest difference is update cadence: SnapCal+ BOYK at monthly against SubStandard's every 7 months. SubStandard's advantage is iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support 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, SnapCal+ BOYK monthly. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.
| Parameter | SubStandard | SnapCal+ BOYK |
|---|---|---|
| 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 | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 33 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | iService Ottner Röck | COLTON LYNN KINSTLEY |
In-app purchases
SubStandard
No in-app purchases
SnapCal+ BOYK
No in-app purchases
Questions
Is SubStandard free?
Is SnapCal+ BOYK free?
Do SubStandard or SnapCal+ BOYK have ads?
Which is updated more often, SubStandard or SnapCal+ BOYK?
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