OffBlock Family vs SubStandard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OffBlock Family
Stay updated on the real-time location and flight status of your aviation-loving friends and family. Connect via QR code or invitation and receive automatic updates on their flight assignments and routes. Includes local time, city info, and a currency converter for destinations.
- Real-time flight tracking
- Location sharing
- Flight assignment updates
- Airport arrival time notifications
- Local time and currency converter
- City information
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Thanks to OffBlock Family you will always stay informed about where in the world your flying friends and relatives currently are. All you have to do is connect to them via OffBlock. Take a picture of their OffBlock ID (this is a QR code waiting for you in your profile) or simply invite them by e-mail or a messenger of your choice. As long as your family regularly maintains the logbook with OffBlock 4, you automatically get all the updates about their flying assignments. And what happens when they are still up in the air? Then OffBlock Family informs you in real time which route they are on and whether the flight is on time. So you always know at what time to pick them up at the airport. Speaking of the airport: OffBlock Family has a few useful extras for every destination. Local times, general information about the city or a currency converter. Wherever your flying friends are: with OffBlock Family you'll never lose sight.
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: OffBlock Family at 67% against SubStandard's 0%. SubStandard's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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.
OffBlock Family ships an update every 10 months, SubStandard every 7 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | OffBlock Family | SubStandard |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 10 months | Every 7 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 98 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | OffBlock GmbH | iService Ottner Röck |
Customer experience
OffBlock Family
SubStandard
In-app purchases
OffBlock Family
No in-app purchases
SubStandard
No in-app purchases
