Material Master vs Pressure Units Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Material Master
Read full descriptionHide full description
GMORS Material Master give you the materials recommendation for your O-Ring application, based on the working temperature and medium of working environment. We provide thousand kinds of environment condition for compatibility evaluation. In addition, GMORS provide certified rubber compounds for various international standards, such as NSF61 ,WRAS ,ACS, KTW ,W-270 ,DIN EN 549,UL 157,API 6A,NORSOK M-710,TOTAL EP PVV 142 and NACE TM0297. Please email us for further information.
Pressure Units Converter
Read full descriptionHide full description
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. 【Unit of Pressure】 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)]
Screenshots
Verdict
The clearest difference is price: Material Master at Free against Pressure Units Converter's $1.99. Pressure Units Converter's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On 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
Material Master 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.
Material Master ships an update every 14 months, Pressure Units Converter every 16 months. Both last shipped on November 2, 2026.
| Parameter | Material Master | Pressure Units Converter |
|---|---|---|
| Price | Free — better | $1.99 |
| Update frequency | Every 14 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 44 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | GE MAO RUBBER INDUSTRIAL CO., LTD. | Kei Suefuji |
In-app purchases
Material Master
No in-app purchases
Pressure Units Converter
No in-app purchases
Questions
Is Material Master free?
Is Pressure Units Converter free?
Do Material Master or Pressure Units Converter have ads?
Which is updated more often, Material Master or Pressure Units Converter?
Other comparisons
