# Surface Air Consumption vs INKBIRD

The clearest difference is review sentiment: Surface Air Consumption at 100% against INKBIRD's 23%. Surface Air Consumption also leads on rating (5.0 vs 3.7) and update cadence (weekly vs fortnightly). INKBIRD's advantage is ratings volume (6.8K vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Surface Air Consumption holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: INKBIRD has 6.8K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Surface Air Consumption's written reviews are positive against 23% of INKBIRD's.

Surface Air Consumption ships an update weekly, INKBIRD fortnightly. The most recent releases landed on June 1, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Surface Air Consumption | INKBIRD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/surface-air-consumption/id1532974489/reviews)** | [3.7 (6.8K ratings)](https://appshunter.io/ios/app/inkbird/id1589369968/reviews) |
| Number of ratings | 2 | **6.8K** |
| Positive reviews | **100.0% of reviews** | 23.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | Free |
| Size | 1 MB | 396 MB |
| Requires iOS | 13.6 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Leridian Dynamics, Inc.](https://appshunter.io/developer/1356342542) | [Shenzhen Inkbird Technology Co. Ltd](https://appshunter.io/developer/1163595178) |

## What reviewers say

### Surface Air Consumption

[App page](https://appshunter.io/ios/app/surface-air-consumption/id1532974489)

This utility calculates surface air consumption (SAC) rates and air needs at depth using only user-provided dive profile data. It does not compute nitrogen absorption or decompression limits. Always prioritize safety and consult official decompression tables.

**Highlights:** Calculates SAC Rate, Estimates air requirements at depth, User input based calculations, Dive profile analysis, Focuses solely on air consumption

**Features:** macOS Compatibility

**In-app purchases:** none


### INKBIRD

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

Transform your home into a smart environment with intuitive controls for appliances and automated adjustments of temperature and humidity. Remotely monitor food temperatures and set custom alarms for optimal cooking, creating a more connected and enjoyable life.

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

**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 Surface Air Consumption free?

Surface Air Consumption is free to download, with no in-app purchases.

### Is INKBIRD free?

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

### Which has better reviews, Surface Air Consumption or INKBIRD?

Surface Air Consumption is rated higher. Surface Air Consumption averages 5.0 out of 5 from 2 ratings, while INKBIRD averages 3.7 from 6.8K ratings.

### Do Surface Air Consumption or INKBIRD have ads?

Neither Surface Air Consumption nor INKBIRD shows ads.

### Which is updated more often, Surface Air Consumption or INKBIRD?

Surface Air Consumption ships an update weekly, and INKBIRD fortnightly. Most recently, Surface Air Consumption was updated on June 1, 2026 and INKBIRD on September 26, 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.*