# Structural Engineering Calc. vs F Numbers

The clearest difference is price: F Numbers at Free against Structural Engineering Calc.'s $5.99. F Numbers also leads on rating (5.0 vs 4.5) and iOS requirement (13.0 vs 17.6). Structural Engineering Calc.'s advantage is ratings volume (20 vs 3). On update cadence, ads, in-app purchases and device support there is nothing between them.

F Numbers is free to download; Structural Engineering Calc. costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

F Numbers holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Structural Engineering Calc. has 20 ratings behind it against 3, so its average is the more settled of the two.

Structural Engineering Calc. ships an update every 10 months, F Numbers every 13 months. The most recent releases landed on September 18, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Structural Engineering Calc. | F Numbers |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | [4.5 (20 ratings)](https://appshunter.io/ios/app/structural-engineering-calc/id590507987/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/f-numbers/id929309069/reviews)** |
| Number of ratings | **20** | 3 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 13 months |
| Monetization | Paid | **Free** |
| Size | 6 MB | 15 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) |

## What reviewers say

### Structural Engineering Calc.

[App page](https://appshunter.io/ios/app/structural-engineering-calc/id590507987)

This app provides 59 essential structural engineering formulas for columns, beams, base plates, composite beams, and connections. It offers instant demand/capacity checks, a built-in AISC section database, and material references, supporting both USCS and SI units for on-site or office use.

**Highlights:** 59 structural formulas, Instant demand/capacity checks, Built-in AISC section database, Material and code references, USCS & SI unit support, Pass/Fail visual indicators

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Structural Engineering Calc. free?

Structural Engineering Calc. costs $5.99, with no in-app purchases.

### Is F Numbers free?

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

### Which has better reviews, Structural Engineering Calc. or F Numbers?

F Numbers is rated higher. Structural Engineering Calc. averages 4.5 out of 5 from 20 ratings, while F Numbers averages 5.0 from 3 ratings.

### Do Structural Engineering Calc. or F Numbers have ads?

Neither Structural Engineering Calc. nor F Numbers shows ads.

### Which is updated more often, Structural Engineering Calc. or F Numbers?

Structural Engineering Calc. ships an update every 10 months, and F Numbers every 13 months. Most recently, Structural Engineering Calc. was updated on September 18, 2026 and F Numbers on June 1, 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.*