# Pipe Trades Pro Calc vs HydraTek

The clearest difference is price: Pipe Trades Pro Calc at Free against HydraTek's $0.99. Pipe Trades Pro Calc also leads on chart position (#199 vs unranked). HydraTek's advantage is in-app purchases (none vs 6) and update cadence (daily vs every 7 months). On ads, device support and iOS requirement there is nothing between them.

Pipe Trades Pro Calc is free to download; HydraTek costs $0.99 up front. Pipe Trades Pro Calc sells 2 in-app purchases, starting at $4.99 per month. HydraTek asks for nothing beyond the download.

Pipe Trades Pro Calc ships an update every 7 months, HydraTek daily. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Pipe Trades Pro Calc | HydraTek |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (4.4K ratings)](https://appshunter.io/ios/app/pipe-trades-pro-calc/id596142100/reviews)** | — |
| Number of ratings | **4.4K** | — |
| Positive reviews | 42.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#199** | — |
| Size | 51 MB | 17 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [HYDRONET LLC](https://appshunter.io/developer/1895987534) |

## What reviewers say

### Pipe Trades Pro Calc

[App page](https://appshunter.io/ios/app/pipe-trades-pro-calc/id596142100)

**Currently charting:** #199 Top Grossing · Utilities (US App Store)

This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.

**Highlights:** Advanced measurement calculations, Fluid dynamics and pressure analysis, Comprehensive pipe data access, Offline functionality, User-centric interface, Material and dimension options

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Full Access | $4.99 | per month |
| 1 Year Full Access | $39.99 | per year |

**What reviewers like**

- 🔢 Useful calculator tool
- 🧠 Helpful for pipe fitters and welders
- 📱 Convenient to have on mobile device
- 🔍 Accurate calculations

**What reviewers complain about**

- 💰 Subscription model is too expensive
- 🔒 Requires internet connection to verify subscription
- 🔄 Used to be a one-time purchase
- 🤔 Confusing transition from one-time to subscription

**Reported bugs**

- App freezes or stops working after updates
- Calculation errors with fractions
- Issues with reinstalling or transferring purchases

**Requested features**

- Ability to use app without subscription
- Support for larger pipe sizes
- Add a back/undo button
- Rotate screen orientation


### HydraTek

[App page](https://appshunter.io/ios/app/hydratek/id6765545053)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Pipe Trades Pro Calc free?

Pipe Trades Pro Calc is free to download, with in-app purchases available.

### Is HydraTek free?

HydraTek costs $0.99, with no in-app purchases.

### Do Pipe Trades Pro Calc or HydraTek have ads?

Neither Pipe Trades Pro Calc nor HydraTek shows ads.

### Which is updated more often, Pipe Trades Pro Calc or HydraTek?

Pipe Trades Pro Calc ships an update every 7 months, and HydraTek daily. Most recently, Pipe Trades Pro Calc was updated on October 26, 2026 and HydraTek on October 24, 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.*