# TFIAC vs Greentest

The clearest difference is rating: Greentest at 3.0 against TFIAC's 1.5. Greentest also leads on review sentiment (28% vs 16%). TFIAC's advantage is ratings volume (11 vs 2) and iOS requirement (8.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Greentest holds the better App Store score, 3.0 against 1.5. That said, the two scores are not equally well evidenced: TFIAC has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 16% of TFIAC's written reviews are positive against 28% of Greentest's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TFIAC | Greentest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (11 ratings)](https://appshunter.io/ios/app/tfiac/id1059938398/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/greentest/id1206278467/reviews)** |
| Number of ratings | **11** | 2 |
| Positive reviews | 15.5% of reviews | **27.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 15 MB | 41 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangdong Wankezi Intelligent Control Technology Co.,Ltd.](https://appshunter.io/developer/1628490374) | [Shenzhen Greentest Science and Technology Co.Ltd](https://appshunter.io/developer/1234084145) |

## What reviewers say

### TFIAC

[App page](https://appshunter.io/ios/app/tfiac/id1059938398)

Control your smart home devices like mobile and split air conditioners, and dehumidifiers. Set up devices via QR code or manual input for local or remote access. Features include basic AC controls and weekly scheduling for timed operations.

**Highlights:** Control mobile and split air conditioners, Dehumidifier control, Device activation via QR code or manual input, Local and remote device control, Basic AC functions (temperature, mode, fan speed, swing), Weekly scheduling for timed operations

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

**In-app purchases:** none


### Greentest

[App page](https://appshunter.io/ios/app/greentest/id1206278467)

This app connects to a smart device to analyze nitrate levels in food and water hardness. It also detects background radioactivity. Ensure Bluetooth is enabled on your mobile device for seamless connection and testing.

**Highlights:** Nitrate level analysis, Water hardness testing (TDS), Background radioactivity detection, Bluetooth device connectivity, Certified safety and accuracy

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TFIAC free?

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

### Is Greentest free?

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

### Which has better reviews, TFIAC or Greentest?

Greentest is rated higher. TFIAC averages 1.5 out of 5 from 11 ratings, while Greentest averages 3.0 from 2 ratings.

### Do TFIAC or Greentest have ads?

Neither TFIAC nor Greentest shows ads.

### Which is updated more often, TFIAC or Greentest?

TFIAC ships an update every 3 months, and Greentest every 3 months. Most recently, TFIAC was updated on October 24, 2026 and Greentest on October 7, 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.*