Comparison

iENV vs OWON iMeter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iENV

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
Read full description

iENV is an App which connects UNI-T’s mini environmental series meters to a cell phone through Bluetooth. It is a free App which can be downloaded from App Store. iENV is able to display and record real-time temperature/humidity, noise level, wind speed, light intensity and rotate speed through UNI-T meters UT333BT, UT353BT, UT363BT, UT383BT, UT372D , UT325F, UT381A , and UT382A respectively.

About

OWON iMeter

This app enables remote monitoring, analysis, and data logging for smart Bluetooth multimeters. It allows for continuous real-time and offline recording, multi-device control, and abnormal data warnings, enhancing operator safety and simplifying data comparison.

Highlights
  • Remote real-time monitoring
  • Continuous offline recording
  • Multi-device control
  • Wireless safety monitoring
  • Graphic and table data presentation
  • Abnormal data warning system
  • Data backup and sharing
Features
Read full description

The first smart Bluetooth multimeter When connect the mobile device with OWON smart Bluetooth multimeter, it can realize remote monitor, analysis, warning and sharing. Furthermore, it can be used as data logger, process tester, thermometer. Function: *Continuous real-time recording read the real-time measurement data of multimeter by low power consumption Bluetooth protocol. After recoding, drawing, analyzing the data, specific data could be saved and loaded for checking convenience. *Continuous offline recording you can use iOS device APP to send a command, the multimeter will start recording the measurements. After receiving the command, the connection will be disconnected automatically. The multimeter will record the measuring data in its own memory. After completion of the record, use iOS APP to reconnect the multimeter, and then you can read the measuring data into the iOS device as a CSV file. You can use this function to record for a long time without staff on duty, while reducing Bluetooth consumption to conserve the battery power of the multimeter. *Multi-point control device app could be connected with multiple devices to monitor them. In "DeviceList" page, the measurements of each device could be observed at the same time. It's convenient for users to view the change of multiple test points at unifying perspective. *Remote wireless communication, guarantee the safety of operator Remote continuously record and monitor could capture the current, voltage, resistance, capacitance, temperature of every test points in high voltage, high temperature, narrow environment and other extreme situation. Data can be captured from remote place, which guarantee the safety of user. *Graphic and table presentation, simplify the comparison and analysis It's abstract when there is only data. Application can draw the data trending of multiple devices in real-time. Could be zoomed out, zoomed in and moved by gestures. Users can match the data to specific curve drawings and analyze the path trending of the test points. *Abnormal data warning Set the warning condition in advance. When data are captured continuously, warning system would remind the user when qualified data show up. *Data back up and share Interpret: Application supports data save and export to be backed up. Otherwise, it could be share in multiple ways so that co-workers could help you to analyze the issue and solve the problem.

Screenshots

iENV3 screens
OWON iMeter4 screens

Verdict

The call

The clearest difference is rating: OWON iMeter at 4.0 against iENV's 3.1. OWON iMeter also leads on review sentiment (50% vs 24%). iENV's advantage is update cadence (monthly vs every 3 months) and ratings volume (7 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

OWON iMeter holds the better App Store score, 4.0 against 3.1. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 24% of iENV's written reviews are positive against 50% of OWON iMeter's.

UpkeepUpdate frequency

iENV ships an update monthly, OWON iMeter every 3 months. The most recent releases landed on September 22, 2026 and September 5, 2026 respectively.

Scorecard4 real differences · 6 level
iENV versus OWON iMeter: the parameters behind the verdict, then further details
ParameteriENVOWON iMeter
PriceFreeFree
Rating3.1 (7 ratings)4.0 (2 ratings) — better
Positive reviews24.2% of reviews50.0% of reviews — better
Number of ratings7 — better2
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13.0
Further details — not scored
Size70 MB56 MB
Age rating4+4+
DeveloperUNI-TREND TECHNOLOGY (CHINA) CO.,LTD.Fujian Lilliput Optoelectronics Technology Co., Ltd.

Customer experience

iENV

All ratings5 ratings
Positive20.0%
Neutral60.0%
Negative20.0%
Written reviews33 reviews
Positive24.2%
Neutral12.1%
Negative63.6%

OWON iMeter

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

iENV

No in-app purchases

None

OWON iMeter

No in-app purchases

Questions

Is iENV free?
iENV is free to download, with no in-app purchases.
Is OWON iMeter free?
OWON iMeter is free to download, with no in-app purchases.
Which has better reviews, iENV or OWON iMeter?
OWON iMeter is rated higher. iENV averages 3.1 out of 5 from 7 ratings, while OWON iMeter averages 4.0 from 2 ratings.
Do iENV or OWON iMeter have ads?
Neither iENV nor OWON iMeter shows ads.
Which is updated more often, iENV or OWON iMeter?
iENV ships an update monthly, and OWON iMeter every 3 months. Most recently, iENV was updated on September 22, 2026 and OWON iMeter on September 5, 2026.

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