# iENV vs Voltcraft DOK Series

The clearest difference is iOS requirement: Voltcraft DOK Series at 13.0 against iENV's 15.0. 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.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | iENV | Voltcraft DOK Series |
| --- | --- | --- |
| 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 | Monthly |
| Monetization | Free | — |
| Size | 55 MB | 4 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [UNI-TREND TECHNOLOGY (CHINA) CO.,LTD.](https://appshunter.io/developer/1207185875) | [CEI Conrad Electronic International (HK) Limited](https://appshunter.io/developer/756357900) |

## 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


### Voltcraft DOK Series

[App page](https://appshunter.io/ios/app/voltcraft-dok-series/id6763523733)

**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 Voltcraft DOK Series free?

Voltcraft DOK Series is free to download, with no in-app purchases.

### Do iENV or Voltcraft DOK Series have ads?

Neither iENV nor Voltcraft DOK Series shows ads.

### Which is updated more often, iENV or Voltcraft DOK Series?

iENV ships an update monthly, and Voltcraft DOK Series monthly. Most recently, iENV was updated on October 24, 2026 and Voltcraft DOK Series on October 28, 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.*