# F Numbers vs CORE Inspection App

The clearest difference is update cadence: CORE Inspection App at every 4 months against F Numbers's every 13 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for F Numbers against 5.0 for CORE Inspection App. Both are backed by a comparable volume of ratings — 3 and 5 respectively.

F Numbers ships an update every 13 months, CORE Inspection App every 4 months. The most recent releases landed on June 1, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | F Numbers | CORE Inspection App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/f-numbers/id929309069/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/core-inspection-app/id1438397627/reviews) |
| Number of ratings | 3 | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 15 MB | 46 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) | [AsInt Inc.](https://appshunter.io/developer/1438397626) |

## What reviewers say

### F Numbers

[App page](https://appshunter.io/ios/app/f-numbers/id929309069)

Quickly find filler metal groupings for welding procedures and performance qualifications. Access classifications with descriptions of intended use, based on ASME and AWS standards.

**Highlights:** Filler metal grouping lookup, Welding procedure qualification, Performance qualification data, Classification descriptions, ASME Section IX data, AWS standards data

**Features:** macOS Compatibility

**In-app purchases:** none


### CORE Inspection App

[App page](https://appshunter.io/ios/app/core-inspection-app/id1438397627)

This app streamlines asset and location management for inspections, allowing users to calculate critical pressure and thickness values. It supports photo documentation and customizable checklists, with offline capabilities for global use across various asset-intensive industries.

**Highlights:** Asset and location management, Tmin and MAWP calculations, Photo documentation, Customizable checklists, Offline capability, ISO 14224 asset settings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is F Numbers free?

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

### Is CORE Inspection App free?

CORE Inspection App is free to download, with no in-app purchases.

### Which has better reviews, F Numbers or CORE Inspection App?

F Numbers and CORE Inspection App are both rated 5.0 out of 5 on the App Store, from 3 and 5 ratings respectively.

### Do F Numbers or CORE Inspection App have ads?

Neither F Numbers nor CORE Inspection App shows ads.

### Which is updated more often, F Numbers or CORE Inspection App?

F Numbers ships an update every 13 months, and CORE Inspection App every 4 months. Most recently, F Numbers was updated on June 1, 2026 and CORE Inspection App on September 12, 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.*