F Numbers vs SSAB WeldCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
F Numbers
Quickly find filler metal groupings for welding procedures and performance qualifications. Access classifications with descriptions of intended use, based on ASME and AWS standards.
- Filler metal grouping lookup
- Welding procedure qualification
- Performance qualification data
- Classification descriptions
- ASME Section IX data
- AWS standards data
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F Numbers: Quick lookup of filler metal groupings for welding procedure and performance qualification. Lookup includes classifications with respective descriptions of intended use. Data is provided by C-spec. F-numbers and A-numbers assignments are based on ASME Section IX Table QW-432 and QW-442, ASME Section II Part C, AWS B2.1 Table B1 and B2, and AWS A5.1 through AWS A5.36.
SSAB WeldCalc
This tool quickly calculates welding parameters like preheat temperatures, heat input, and machine settings. It also provides a risk analysis and allows users to save and share results as PDFs.
- Welding parameter calculation
- Preheat and interpass temperature recommendations
- Heat input calculation
- Welding machine setting recommendations
- Risk analysis
- Save and share results as PDF
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The SSAB WeldCalc app is a simplified version of the advanced SSAB WeldCalc desktop pro version. Based on the welding method, the welding joint, steel grades and thicknesses, it gives you the result in seconds: - Recommended preheat and interpass temperatures. - Recommended minimum and maximum heat input. - Recommended welding machine settings (amps, volts and travel speed). - Risk analysis. You can save the results on your device and share them as PDF. WeldClac is available in English, Turkish, Portugal, Hungary, Germany, Netherlands, Spain, France, Finland, Italy, Korea, Russia, Swedish, Chinese, Japanese, Czech, Poland, indonesian and Thai Contact details marketing@ssab.com
Screenshots
Verdict
The clearest difference is rating: F Numbers at 5.0 against SSAB WeldCalc's 4.2. F Numbers also leads on ads (none vs shown) and monetization model (free vs ad-supported). SSAB WeldCalc's advantage is iOS requirement (10.0 vs 13.0). On price, ratings volume, update cadence and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
F Numbers holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 3 and 5 respectively.
F Numbers ships an update every 13 months, SSAB WeldCalc every 9 months. The most recent releases landed on September 15, 2026 and September 25, 2026 respectively.
| Parameter | F Numbers | SSAB WeldCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.2 (5 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 3 | 5 — better |
| Update frequency | Every 13 months | Every 9 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 127 MB |
| Age rating | 4+ | 4+ |
| Developer | ASMEIX CORPORATION | SSAB AB |
Customer experience
F Numbers
SSAB WeldCalc
In-app purchases
F Numbers
No in-app purchases
SSAB WeldCalc
No in-app purchases
Questions
Is F Numbers free?
Is SSAB WeldCalc free?
Which has better reviews, F Numbers or SSAB WeldCalc?
Do F Numbers or SSAB WeldCalc have ads?
Which is updated more often, F Numbers or SSAB WeldCalc?
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