F Numbers vs calcISO10675
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.
calcISO10675
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You found the Acceptance levels for radiographic testing (imperfections for welds) in the ISO 10675. This App calculated the value for one concretely weld. Select the material, then input the geometry of the weld, then select the imperfections. The result for this weld is displayed. You can now the result compared with the measurement. The weld is OK or not. Only internal indications in butt welds. Surface imperfections use the App CalcISO5817.
Screenshots
Verdict
The clearest difference is update cadence: calcISO10675 at every 5 months against F Numbers's every 13 months. F Numbers's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads 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 ships an update every 13 months, calcISO10675 every 5 months. The most recent releases landed on September 15, 2026 and October 26, 2026 respectively.
| Parameter | F Numbers | calcISO10675 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 13 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 15 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ASMEIX CORPORATION | Georg Rose |
In-app purchases
F Numbers
No in-app purchases
calcISO10675
No in-app purchases
Questions
Is F Numbers free?
Is calcISO10675 free?
Do F Numbers or calcISO10675 have ads?
Which is updated more often, F Numbers or calcISO10675?
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