# iENV vs Thermal Imager

The clearest difference is update cadence: iENV at monthly against Thermal Imager's every 30 months. On price, ads, in-app purchases and device support there is nothing between them.

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

iENV ships an update monthly, Thermal Imager every 30 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | iENV | Thermal Imager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (7 ratings)](https://appshunter.io/ios/app/ienv/id1260827700/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 25.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 30 months |
| Monetization | Free | — |
| Size | 55 MB | 53 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UNI-TREND TECHNOLOGY (CHINA) CO.,LTD.](https://appshunter.io/developer/1207185875) | [Smart iMeters](https://appshunter.io/developer/6775329697) |

## What reviewers say

### iENV

[App page](https://appshunter.io/ios/app/ienv/id1260827700)

This utility app connects UNI-T environmental meters to your smartphone via Bluetooth. It displays and records real-time data for temperature, humidity, noise, wind speed, light intensity, and rotation speed from compatible UNI-T devices.

**Highlights:** Bluetooth connectivity to UNI-T meters, Real-time data display, Data recording capabilities, Supports multiple environmental parameters, Compatible with various UNI-T meter models

**Features:** macOS Compatibility

**In-app purchases:** none


### Thermal Imager

[App page](https://appshunter.io/ios/app/thermal-imager/id6502282920)

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

**In-app purchases:** none


## Frequently asked questions

### Is iENV free?

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

### Is Thermal Imager free?

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

### Do iENV or Thermal Imager have ads?

Neither iENV nor Thermal Imager shows ads.

### Which is updated more often, iENV or Thermal Imager?

iENV ships an update monthly, and Thermal Imager every 30 months. Most recently, iENV was updated on October 24, 2026 and Thermal Imager on October 20, 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.*