Silverson Conversion Tools vs Pressure Vessel Heads
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Silverson Conversion Tools
This app provides engineers and operations personnel with tools to calculate the volume of vertical tanks of various shapes and top/bottom styles. It also includes multiple conversion tools for common measurements and a browser for product information.
- Vertical tank volume calculation
- Multiple tank shapes and top/bottom styles
- Unit conversion tools
- Email/Share calculation results
- Integrated product browser
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This versatile set of calculating tools from Silverson Machines is a handy reference app for engineers and operations personnel allowing you to calculate the volume of any vertical tank based on parameters you choose. Choose from the following: Vertical Tank Shapes: • Cylindrical • Rectangular Top and Bottom Styles: • Flat • Dished • Spherical • Conical Silverson’s app even allows you to Email/Share your volume calculation results and includes a browser for viewing Silverson product lines and website. In addition there are multiple conversion tools for the following measurements: • Length • Fine Measurement • Flow • Motor Power • Pressure • Temperature • Volume • Weight
Pressure Vessel Heads
Calculate dimensions for various pressure vessel heads, including flat, torispherical, ellipsoidal, and hemispherical types. It provides detailed calculations for blank diameter, crown radius, knuckle radius, and height, with options for template layout marking. Input dimensions are in millimeters.
- Calculate blank diameter
- Calculate crown radius
- Calculate knuckle radius
- Support for flat heads
- Support for torispherical heads
- Support for ellipsoidal heads
- Support for hemispherical heads
- Template layout marking for 2:1 ellipsoidal heads
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This app is very helpful for Calculation of Blank Diameter, Crown Radius, Knuckle Radius,Height and other Related Terms of Various Types of Vessel heads such as Flat Head, Torispherical Head, ellipsoidal head and Hemispherical Head. This app is designed for following Heads. 1. Flat Heads 2. 10% Torispherical head or dish Ends. 3. 2: 1 Ellipsoidal head or Dish Ends. 4. Hemispherical heads. 5. 2:1 Ellipsoidal Dish End Template Layout Marking This App also Calculate Crown Radius, Knuckle Radius, Height without SF, Height with SF etc. in this app 2:1 ellipsoidal Head Template Layout Marking is Calculate with options of lay-outing in 12 Parts, 24 Parts, 36 Parts, 48 Parts, 72 Parts or you can Put any No of Parts in development lines. its Generate X and Y Coordinates for Layout. all dimensional input Should be required in MM or Metric System. Blank Diameter calculated by This Tool is for Estimation and costing purpose, so while Cutting Blank size of the above Dish End please consult with your head manufacture for desired Accuracy. this tool is helful for those who are working in fabrication of Process Equipments.
Screenshots
Verdict
The clearest difference is price: Silverson Conversion Tools at Free against Pressure Vessel Heads's $2.99. Silverson Conversion Tools also leads on update cadence (every 6 months vs every 56 months) and iOS requirement (8.0 vs 16.1). On ads, in-app purchases 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
Silverson Conversion Tools is free to download; Pressure Vessel Heads costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Silverson Conversion Tools ships an update every 6 months, Pressure Vessel Heads every 56 months. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.
| Parameter | Silverson Conversion Tools | Pressure Vessel Heads |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 months — better | Every 56 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Silverson Machines Limited | Imran Pinjara |
Customer experience
Silverson Conversion Tools
Pressure Vessel Heads
In-app purchases
Silverson Conversion Tools
No in-app purchases
Pressure Vessel Heads
No in-app purchases
Questions
Is Silverson Conversion Tools free?
Is Pressure Vessel Heads free?
Do Silverson Conversion Tools or Pressure Vessel Heads have ads?
Which is updated more often, Silverson Conversion Tools or Pressure Vessel Heads?
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