PlantHand
Gas plant field calculators
Only for iPhone
$12.99 · Designed for iPhone. Not verified for macOS.
iPhone
Built by a gas plant operator. Sixteen offline tools for hydrates, injection, purge,
blowdown, volumes and plant units. Every result names its published method.
Built by a gas plant operator. Works in the dead zone.
PlantHand is the set of calculators and reference tables a processing plant or pipeline
operator actually reaches for on shift. The same estimates you already work out by hand,
done faster and more consistently, with the published method named on every result.
Hydrates and injection
- Hydrate formation temperature
- Methanol injection rate
- EG injection rate
Pressure and temperature
- JT drop / letdown check
- Turboexpander
- Blowdown time
- N2 purge
- Propane refrigeration
Volumes and flow
- Line fill
- Vessel volume
- Gas velocity
- Flare rate / tip check
Reference
- Pipe schedule
- Gas properties
- Unit converter tuned to plant work
- Glossary
Every calculator names the published correlation behind it and links to the source, so you
can read the theory rather than trust a black box. Where a method has a published validity
range, a result outside it is flagged. Where a method carries a standing constraint, such as
a sweet-gas-only assumption, that is stated with the result.
This is a field estimation tool. It is not engineering design software, it does not produce a
certified or stamped result, and it is never the sole basis for a safety-critical decision.
Verify every number against your facility's approved methods.
Dark for the control room, high-contrast light for direct sun. Big touch targets for gloves.
Your last inputs are remembered.
No account. No analytics. No data collected. Calculators run entirely on your device. Method
references open in Safari only if you tap them.
One price. Everything included. No subscription, no unlock packs.
Ratings & Reviews
The developer, Josh Winter, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Josh Winter
- Size
- 1.4 MB
- Category
- Productivity
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Ironclad Digital LLC
