explainEN287 vs P Numbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
explainEN287
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The app is designed for user, who wish their knowledge about the welder's qualification according to EN 287-1 (e.g. site supervisors, welding experts, technicians). The importance of the individual elements of the rule will become even clearer for the user. The user can to be checked whether the welder is for a specific welding necessary. Select/Search one element from the EN 287-1. Displayed a comment and/other a simple sketch.
P Numbers
Quickly access weldability grouping numbers for welding procedures and performance qualifications. This app provides data from authoritative sources like ASME Section IX and AWS B2.1.
- Base metal weldability grouping lookup
- Welding procedure qualification data
- Performance qualification data
- ASME Section IX Table QW/QB-422 data
- AWS B2.1 Table C1 and C2 data
- ISO/TR 20173 data
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P-Numbers: Quick lookup of base metal weldability grouping numbers for welding procedure and performance qualification. Data is provided by C-spec from the master source used for generation, proof-reading and maintenance of ASME Section IX Table QW/QB-422, AWS B2.1 Table C1 and C2, and ISO/TR 20173.
Screenshots
Verdict
The clearest difference is iOS requirement: P Numbers at 13.0 against explainEN287's 15.6. On price, update cadence, 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.
explainEN287 ships an update every 20 months, P Numbers every 39 months. The most recent releases landed on August 22, 2026 and June 11, 2026 respectively.
| Parameter | explainEN287 | P Numbers |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 20 months — better | Every 39 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Georg Rose | ASMEIX CORPORATION |
In-app purchases
explainEN287
No in-app purchases
P Numbers
No in-app purchases
Questions
Is explainEN287 free?
Is P Numbers free?
Do explainEN287 or P Numbers have ads?
Which is updated more often, explainEN287 or P Numbers?
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