# F vs SealProof

The clearest difference is in-app purchases: F at none against SealProof's 1. F also leads on iOS requirement (13.4 vs 18.0). SealProof's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. SealProof sells 1 one-off in-app purchase. F asks for nothing beyond the download.

F ships an update every 2 months, SealProof every 2 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | F | SealProof |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 19 MB | 9 MB |
| Requires iOS | **13.4** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Gestimat – Groupe Dehon](https://appshunter.io/developer/928450680) | [InnovaLabWorks](https://appshunter.io/developer/1888514726) |

## What reviewers say

### F

[App page](https://appshunter.io/ios/app/f-gas-solutions/id928450681)

This app helps professionals understand and comply with European F-Gas regulations. It provides tools for calculating refrigerant loads, determining leak detection frequencies, and identifying suitable process fluids for various equipment.

**Highlights:** F-Gas III regulation compliance, Refrigerant load calculation, Leak detection frequency guide, Process fluid and solution recommendations, Equipment and application specific guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### SealProof

[App page](https://appshunter.io/ios/app/sealproof-pressure-test/id6792427322)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $49.99 | one-time |


## Frequently asked questions

### Is F free?

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

### Is SealProof free?

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

### Do F or SealProof have ads?

Neither F nor SealProof shows ads.

### Which is updated more often, F or SealProof?

F ships an update every 2 months, and SealProof every 2 weeks. Most recently, F was updated on November 1, 2026 and SealProof 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.*