# OffBlock Family vs SubStandard

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.

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.

## The numbers

| Metric | OffBlock Family | SubStandard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/substandard/id1513656520/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 7 months** |
| Monetization | Ad-supported | **Free** |
| Size | 98 MB | 33 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OffBlock GmbH](https://appshunter.io/developer/1231996197) | [iService Ottner Röck](https://appshunter.io/developer/1413717324) |

## What reviewers say

### OffBlock Family

[App page](https://appshunter.io/ios/app/offblock-family/id1445131313)

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.

**Highlights:** Real-time flight tracking, Location sharing, Flight assignment updates, Airport arrival time notifications, Local time and currency converter, City information

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SubStandard

[App page](https://appshunter.io/ios/app/substandard/id1513656520)

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.

**Highlights:** Cold temperature corrections, Altitude set storage, Quick access to saved altitudes, Easy to use interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OffBlock Family free?

OffBlock Family is free to download, with no in-app purchases.

### Is SubStandard free?

SubStandard is free to download, with no in-app purchases.

### Do OffBlock Family or SubStandard have ads?

OffBlock Family shows ads; SubStandard does not.

### Which is updated more often, OffBlock Family or SubStandard?

OffBlock Family ships an update every 10 months, and SubStandard every 7 months. Most recently, OffBlock Family was updated on November 2, 2026 and SubStandard on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*