# Airro Refuel LearJet vs SoH Checker

The clearest difference is price: SoH Checker at Free against Airro Refuel LearJet's $0.99. SoH Checker also leads on update cadence (fortnightly vs every 28 months). Airro Refuel LearJet's advantage is in-app purchases (none vs 1) and iOS requirement (12.4 vs 15.0). On ads and device support there is nothing between them.

SoH Checker is free to download; Airro Refuel LearJet costs $0.99 up front. SoH Checker sells 1 one-off in-app purchase. Airro Refuel LearJet asks for nothing beyond the download.

Airro Refuel LearJet ships an update every 28 months, SoH Checker fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Airro Refuel LearJet | SoH Checker |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Fortnightly** |
| Size | 2 MB | 6 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian van der Meij](https://appshunter.io/developer/571706052) | [Werner Katzenberger](https://appshunter.io/developer/1854118077) |

## What reviewers say

### Airro Refuel LearJet

[App page](https://appshunter.io/ios/app/airro-refuel-learjet/id1525444318)

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

**In-app purchases:** none


### SoH Checker

[App page](https://appshunter.io/ios/app/soh-checker/id6755479253)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |


## Frequently asked questions

### Is Airro Refuel LearJet free?

Airro Refuel LearJet costs $0.99, with no in-app purchases.

### Is SoH Checker free?

SoH Checker is free to download, with in-app purchases available.

### Do Airro Refuel LearJet or SoH Checker have ads?

Neither Airro Refuel LearJet nor SoH Checker shows ads.

### Which is updated more often, Airro Refuel LearJet or SoH Checker?

Airro Refuel LearJet ships an update every 28 months, and SoH Checker fortnightly. Most recently, Airro Refuel LearJet was updated on November 3, 2026 and SoH Checker on October 30, 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.*