Sigtasa vs Metal +
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sigtasa
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Sistema Integral de Gestión de Auditorias y procesos de TASA
Metal +
Easily calculate the weight and price of various metal forms and alloys. Save your projects and access calculations offline. This tool supports multiple units and metal types for precise results.
- Calculate weight of round, sheet, tube, rectangle forms
- Supports steel, aluminum, nickel, copper, gold, silver alloys
- Calculate paint surface area
- Weight converter
- Price per kilogram/ton converter
- Save items and projects
- Offline functionality
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Metal+ can calculate the weight of any metal form, such as round, sheet, tube, rectangle, and much more. Metal alloys such as steel, aluminum, nickel, copper, gold, silver, and others are supported, and paint surface calculation is performed. To find out how many pieces and how long they are, use the Weight Converter. Calculate price per kilogram / ton from piece price using a price converter. Save items and projects to your favorite list. No need internet (work offline). No background processes. Fast and simple. Less clicks. Accurate results. Remembers your settings for next use. Privacy protected no personal info is collected.
Screenshots
Verdict
The clearest difference is in-app purchases: Sigtasa at none against Metal +'s 1. Sigtasa also leads on update cadence (every 2 months vs every 4 months). Metal +'s advantage is iOS requirement (13.0 vs 16.6). On price, 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. Metal + sells 1 one-off in-app purchase. Sigtasa asks for nothing beyond the download.
Sigtasa ships an update every 2 months, Metal + every 4 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Sigtasa | Metal + |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (12 ratings) — better |
| Number of ratings | — | 12 — better |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Pierre Mendoza Sanchez | Mohamed Saad |
In-app purchases
Sigtasa
No in-app purchases
Metal +
- Remove Ads$4.99
Questions
Is Sigtasa free?
Is Metal + free?
Do Sigtasa or Metal + have ads?
Which is updated more often, Sigtasa or Metal +?
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