A vs WeldZip
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A
This utility app calculates the A-Number for deposited weld metal based on its chemical composition. It simplifies the process of comparing weld metal composition against ASME Section IX standards, aiding in procedure qualification and ensuring compliance.
- Determines A-Number from chemical composition
- Compares weld metal to ASME Section IX ranges
- Aids in procedure qualification
- Supports ASME Section IX 2023 Edition
- Provides accurate results
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Background The A-Number is essential variable in most of the welding process in ASME Section IX. A-Number in WPS does not refer to the filler wire or electrode chemical composition, it refers to the deposited weld metal chemical composition. The filler metal and deposited weld metal have different chemical composition. Acceptable method of determining weld metal chemical composition is given in QW-404.5 of ASME Section IX. Applicable Code / Edition & Standards The weld metal A-Number determination is in accordance with ASME Section IX 2023 Edition. Utility This app determine the assigned A-Number based on chemical composition in a "as weld" condition. Weld metal A-Number is used for procedure qualification. Changes in weld metal A-Number may require procedure re-qualification. Competitive Edge There is no app available in the market to determine weld metal A-Number. User mostly compare weld metal composition against ranges given in ASME Section IX. This handy tool makes life easy by comparing the chemical composition to that of the ranges for given A-Number and provide accurate result. Target Audience This app targets inspection agencies, pressure items manufacturing organizations, quality control personnel, welders, welding operators, students who are involved in welding trades and institutions who are doing procedure qualification testing.
WeldZip
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The Welding Assistant for Professionals 1. Filler Metal Data: Access detailed information on welding materials, including chemical composition, mechanical properties, and corrosion resistance, to make informed decisions. 2.Welding Tools: -Calculate weld material consumption and heat input. -Use DeLong and Schaeffler diagrams for stainless steel metallurgy. -Determine preheat temperatures and hardness conversions. -Decode welding symbols and calculate J/X coefficients for metals. 3.Welding Documents: Explore a library of patents, technical articles, and professional resources to stay updated on industry trends. 4.Welding Dictionary: A multilingual tool for quick translations of welding terms, making communication across languages effortless. 5. Welding Q&A: Get expert answers to your welding questions and share knowledge with a community of professionals.
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Verdict
The clearest difference is in-app purchases: WeldZip at none against A's 1. On price, update cadence, ads and device support 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. A sells 1 one-off in-app purchase. WeldZip asks for nothing beyond the download.
A ships an update every 10 months, WeldZip every 8 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.
| Parameter | A | WeldZip |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | Shabbir Ahmed | Shanghai KongDe IT Co., LTD. |
In-app purchases
A
- Non-Consumable Subscription$1.99
WeldZip
No in-app purchases







