# Pipe Flow Gas Flow Rate vs INKBIRD

The clearest difference is rating: Pipe Flow Gas Flow Rate at 5.0 against INKBIRD's 3.7. Pipe Flow Gas Flow Rate also leads on iOS requirement (11.0 vs 15.0). INKBIRD's advantage is in-app purchases (none vs 1) and ratings volume (7K vs 7). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Pipe Flow Gas Flow Rate sells 1 one-off in-app purchase. INKBIRD asks for nothing beyond the download.

Pipe Flow Gas Flow Rate holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: INKBIRD has 7K ratings behind it against 7, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 9, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Pipe Flow Gas Flow Rate | INKBIRD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/pipe-flow-gas-flow-rate/id1582819662/reviews)** | [3.7 (7K ratings)](https://appshunter.io/ios/app/inkbird/id1589369968/reviews) |
| Number of ratings | 7 | **7K** |
| Positive reviews | — | 22.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | Free |
| Size | 67 MB | 410 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Pipe Flow Software](https://appshunter.io/developer/1193064957) | [Shenzhen Inkbird Technology Co. Ltd](https://appshunter.io/developer/1163595178) |

## What reviewers say

### Pipe Flow Gas Flow Rate

[App page](https://appshunter.io/ios/app/pipe-flow-gas-flow-rate/id1582819662)

This utility app calculates gas flow rates in pipes, accounting for friction and fitting losses using compressible isothermal equations. It offers extensive databases for materials, fittings, and gases, with customizable units and reporting options.

**Highlights:** Gas flow rate calculation, Friction and fitting loss analysis, Compressible isothermal equations, Extensive material and fitting databases, Customizable units and reporting, Gas properties calculator

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pipe Flow Gas Flow Rate | $4.99 | one-time |


### INKBIRD

[App page](https://appshunter.io/ios/app/inkbird/id1589369968)

Transform your home into a smart environment with intuitive controls for appliances, temperature, and humidity. Remotely monitor food temperatures and set custom alarms for perfect cooking. Create a connected home network for a more enjoyable and convenient lifestyle.

**Highlights:** Smart home appliance control, Automated temperature and humidity adjustment, Remote food temperature monitoring, Customizable temperature alarms, Family network setup, Intuitive user interface

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to set up and use
- 🔒 Reliable connection
- 👍 Useful features
- 🚀 Accurate temperature monitoring
- 👍 Great customer support

**What reviewers complain about**

- 🐛 Bugs and connectivity issues
- 👎 Unintuitive app interface
- 🔋 Battery life concerns
- 👎 Difficult to configure
- 🔒 Privacy concerns with mandatory account

**Reported bugs**

- Custom menu names reset after exiting app
- Widgets not working as expected
- Frequent app crashes and disconnections
- Sensor temperature readings inconsistent
- Unable to remove/delete connected devices

**Requested features**

- Add dark mode option
- Improve temperature graph functionality
- Allow custom alarm sounds
- Implement low temperature alerts
- Add support for more devices


## Frequently asked questions

### Is Pipe Flow Gas Flow Rate free?

Pipe Flow Gas Flow Rate is free to download, with in-app purchases available.

### Is INKBIRD free?

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

### Which has better reviews, Pipe Flow Gas Flow Rate or INKBIRD?

Pipe Flow Gas Flow Rate is rated higher. Pipe Flow Gas Flow Rate averages 5.0 out of 5 from 7 ratings, while INKBIRD averages 3.7 from 7K ratings.

### Do Pipe Flow Gas Flow Rate or INKBIRD have ads?

Neither Pipe Flow Gas Flow Rate nor INKBIRD shows ads.

### Which is updated more often, Pipe Flow Gas Flow Rate or INKBIRD?

Pipe Flow Gas Flow Rate ships an update fortnightly, and INKBIRD fortnightly. Most recently, Pipe Flow Gas Flow Rate was updated on November 9, 2026 and INKBIRD on November 11, 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.*