# Hermes School Operator vs BlackJet Aviation

The clearest difference is update cadence: BlackJet Aviation at weekly against Hermes School Operator's every 6 months. On price, ads, 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.

Hermes School Operator ships an update every 6 months, BlackJet Aviation weekly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Hermes School Operator | BlackJet Aviation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blackjet-aviation/id6740369849/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Size | 35 MB | 69 MB |
| Requires iOS | **13.1** | 14.0.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [PTT Group](https://appshunter.io/developer/459684765) | [Jettly Inc.](https://appshunter.io/developer/1288067295) |

## What reviewers say

### Hermes School Operator

[App page](https://appshunter.io/ios/app/hermes-school-operator/id6738829838)

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

**In-app purchases:** none


### BlackJet Aviation

[App page](https://appshunter.io/ios/app/blackjet-aviation/id6740369849)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hermes School Operator free?

Hermes School Operator is free to download, with no in-app purchases.

### Is BlackJet Aviation free?

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

### Do Hermes School Operator or BlackJet Aviation have ads?

Neither Hermes School Operator nor BlackJet Aviation shows ads.

### Which is updated more often, Hermes School Operator or BlackJet Aviation?

Hermes School Operator ships an update every 6 months, and BlackJet Aviation weekly. Most recently, Hermes School Operator was updated on October 8, 2026 and BlackJet Aviation on October 24, 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.*