Tools for hardness testing vs Pressure Units Converter
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Tools for hardness testing
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With this app you can quickly convert your hardness values according to the commonly used standards of the world of hardness testing. Vickers Curvature Correction Calculator: Save the time and trouble of using look up tables: determine your curvature corrected Vickers value with this quick calculator. Spacing / Thickness Calculator (Vickers / Knoop): ISO and ASTM specify that Vickers hardness test indentations must be a distance of at least three times their diagonal apart and the minimum thickness of the specimen must be over 1.5 times the diagonal length. In order to conform to the standards, use the calculator to determine these dimensions for your test. Rockwell Thickness Calculator: When Rockwell testing on thin materials be sure that you are complying with ISO and ASTM standards of minimum thickness with this calculator before you test. Brinell Value Calculator: When using a handheld microscope to measure Brinell indentations, Brinell numbers are normally calculated using ISO 6506-4 tables. This Brinell number calculator quickly provides the Brinell number without the need to consult the tables. Conversion to ISO 18265 (part A1 and B2): The conversion tool for metallic materials uses the tables of ISO 18265. With this e.g. Vickers values can be revalued to tensile strength.
Pressure Units Converter
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The Pressure Units Converter application converts the input pressure value into 11 types of units. The unit of conversion is in hectopascal [hPa], millimeter of mercury [mmHg], pounds per square inch [psi] and so on. Simply enter the pressure value and select the unit of pressure with the unit selection button, the value converted into 11 units will be displayed. Units supported by this application are as follows. γUnit of Pressureγ 1. Pascal [Pa] 2. Hectopascal [hPa] 3. Bar [bar] 4. Millibar [mbar] 5. Atmosphere [atm] 6. Millimeter of mercury [mmHg] 7. torr [Torr] 8. Millimeter of water [mmH2O] 9. Inch of mercury [inHg] 10. Pounds per square inch [psi (lbf/in^2)] 11. Pounds per square foot [psf, (lbf/ft^2)]
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Verdict
The clearest difference is price: Tools for hardness testing at Free against Pressure Units Converter's $1.99. Tools for hardness testing also leads on update cadence (every 5 weeks vs every 16 months) and iOS requirement (8.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Tools for hardness testing is free to download; Pressure Units Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Tools for hardness testing ships an update every 5 weeks, Pressure Units Converter every 16 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | Tools for hardness testing | Pressure Units Converter |
|---|---|---|
| Price | Free β better | $1.99 |
| Update frequency | Every 5 weeks β better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 8.0 β better | 12.0 |
| Further details β not scored | ||
| Size | 12 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Groenewold - IT Solutions GmbH | Kei Suefuji |
In-app purchases
Tools for hardness testing
No in-app purchases
Pressure Units Converter
No in-app purchases
Questions
Is Tools for hardness testing free?
Is Pressure Units Converter free?
Do Tools for hardness testing or Pressure Units Converter have ads?
Which is updated more often, Tools for hardness testing or Pressure Units Converter?
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