# Pressure Vessel Pro vs TempLink

The clearest difference is price: TempLink at Free against Pressure Vessel Pro's $5.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

TempLink is free to download; Pressure Vessel Pro costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pressure Vessel Pro ships an update every 5 months, TempLink every 10 months. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Pressure Vessel Pro | TempLink |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/pressure-vessel-pro/id535696875/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 10 months |
| Monetization | Paid | — |
| Size | 10 MB | 34 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [J.R.Hobbs](https://appshunter.io/developer/395110523) | [UNI-TREND TECHNOLOGY (CHINA) CO.,LTD.](https://appshunter.io/developer/1207185875) |

## What reviewers say

### Pressure Vessel Pro

[App page](https://appshunter.io/ios/app/pressure-vessel-pro/id535696875)

Perform essential pressure vessel stress calculations with ease. Input dimensions for various tank geometries and instantly get results, including detailed formulae and ASME code compliance. Generate and share PDF reports with schematics.

**Highlights:** Pressure vessel stress calculations, ASME Boiler & Pressure Vessel Code compliance, Support for vertical, horizontal, and spherical tanks, Component stress calculations (cylinders, heads), Generate and share PDF reports, Flexible unit system (Metric/English), Save multiple calculation cases

**Features:** Vision Pro support

**In-app purchases:** none


### TempLink

[App page](https://appshunter.io/ios/app/templink/id6470447007)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pressure Vessel Pro free?

Pressure Vessel Pro costs $5.99, with no in-app purchases.

### Is TempLink free?

TempLink is free to download, with no in-app purchases.

### Do Pressure Vessel Pro or TempLink have ads?

Neither Pressure Vessel Pro nor TempLink shows ads.

### Which is updated more often, Pressure Vessel Pro or TempLink?

Pressure Vessel Pro ships an update every 5 months, and TempLink every 10 months. Most recently, Pressure Vessel Pro was updated on October 23, 2026 and TempLink on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*