Comparison

Solinst vs FEI Rental Manager

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

Head to head
About

Solinst

This app enables wireless communication with Solinst dataloggers for programming, data download, and diagnostics. It allows for efficient field data collection by leveraging smartphone technology, eliminating the need for laptops. Users can also perform field calibrations for conductivity monitoring.

Highlights
  • Wireless datalogger communication
  • Start/stop sampling
  • Data downloading and emailing
  • Scheduled and repeat sampling
  • GPS coordinate logging
  • Datalogger diagnostics
  • Field calibration
Features
Read full description

The Solinst Levelogger® App is designed to communicate wirelessly with Solinst dataloggers. It has many programming options, including start/stop, data downloading, scheduled and repeat sampling, future start/stop, and GPS coordinates. To use the Solinst Levelogger App, you will need to purchase a Levelogger App Interface, which uses a simple hardware connection to the top of a Solinst Direct Read Cable, Adaptor, or LevelVent Wellhead. Your phone or tablet communicates with the Levelogger App Interface via Bluetooth® technology, providing information about the connected datalogger, including battery level, serial number, and firmware. Files can be sent directly from the App to any email account, or to most File Sharing Apps already installed on your smart device. Run complete datalogger diagnostics tests using the Levelogger App’s diagnostic utility for all of your Solinst dataloggers. When monitoring water conductivity using a Levelogger LTC, you may need to calibrate while in the field. This App allows you to run a complete user calibration to ensure the highest accuracy readings. Advantages of Using the Solinst Levelogger App - Communicate with your datalogger wirelessly - Makes data collection very efficient - Employs the smartphone technology that you are already using - Eliminates the need to bring a laptop or cumbersome equipment to the field - Program and start dataloggers right in the field - View real-time readings, download, e-mail or share logged data files Levelogger App Interface Device (Hardware Connection to dataloggers) The Levelogger App Interface uses Bluetooth wireless technology to connect a Solinst datalogger to your smart device. Once connected, you can view data and program the datalogger using the Solinst Levelogger App. The Solinst Levelogger App and Interface are compatible with the following Solinst dataloggers: -Levelogger 6 (Firmware 1.000) - Levelogger 6 Junior (Firmware 1.000) - Levelogger 6 LTC (Firmware 1.000) - Barologger 6 (Firmware 1.000) - Rainlogger 6 (Firmware 1.000) - LevelVent 6 (Firmware 1.000) - Levelogger 5 (Firmware 1.007) - Levelogger 5 Junior (Firmware 1.007) - Levelogger 5 LTC (Firmware 1.007) - Barologger 5 (Firmware 1.007) - Rainlogger 5 (Firmware 1.007) - AquaVent 5 (Firmware 1.007) - LevelVent 5 (Firmware 1.007) - Levelogger Edge (Firmware 3.004) - Barologger Edge (Firmware 3.004) - Levelogger Junior Edge (Firmware 3.004) - LTC Levelogger Edge (Firmware 1.003) - Rainlogger Edge (Firmware 3.001) - LevelVent (Firmware 1.000) - AquaVent (Firmware 1.000) - Levelogger Gold (Firmware 2.007) - Barologger Gold (Firmware 2.007) - Levelogger Junior (Firmware 2.007) - LTC Levelogger Junior (Firmware 2.005) - Rainlogger (Firmware 2.000)

About

FEI Rental Manager

Manage your environmental monitoring equipment rentals efficiently. This app allows active customers to schedule pickups, find equipment, locate branches, and access support resources easily.

Highlights
  • Schedule equipment pickups and returns
  • Browse instrument and supply catalog
  • Find nearest branch locations
  • Communicate with staff
  • Access project support resources
Features
Read full description

Manage your environmental monitoring rentals with ease. The FEI app is designed exclusively for active Field Environmental Instruments (FEI) customers, giving you convenient access to the tools and resources you need—anytime, anywhere. From scheduling pickups to finding equipment and support, everything is right at your fingertips. With the FEI app, you can: Schedule and manage equipment pickups and returns Browse FEI’s instrument and supply catalog Find your nearest FEI branch Communicate quickly and easily with FEI staff Access helpful resources to support your projects About Field Environmental Instruments Established in 1995, Field Environmental Instruments (FEI) is an employee‑owned environmental instrumentation rental and supply company headquartered in Pittsburgh, Pennsylvania, with 14 full‑service branch offices nationwide. FEI offers an extensive inventory of environmental monitoring and sampling equipment, backed by reliable expertise and a strong commitment to customer service—helping clients execute their projects with confidence.

Screenshots

Solinst4 screens
FEI Rental Manager4 screens

Verdict

The call

The clearest difference is rating: FEI Rental Manager at 5.0 against Solinst's 1.0. Solinst's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and in-app purchases 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

FEI Rental Manager holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 7 and 4 respectively.

UpkeepUpdate frequency

Solinst ships an update every 5 months, FEI Rental Manager every 4 months. The most recent releases landed on September 5, 2026 and June 6, 2026 respectively.

Scorecard3 real differences · 7 level
Solinst versus FEI Rental Manager: the parameters behind the verdict, then further details
ParameterSolinstFEI Rental Manager
PriceFreeFree
Rating1.0 (7 ratings)5.0 (4 ratings) — better
Positive reviews42.9% of reviews—
Number of ratings7 — better4
Update frequencyEvery 5 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.215.6 — better
Further details — not scored
Size19 MB18 MB
Age rating4+4+
DeveloperSolinst Canada Ltd.Field Environmental Instruments Inc.

Customer experience

Solinst

All ratings7 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews7 reviews
Positive42.9%
Neutral0.0%
Negative57.1%

FEI Rental Manager

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Solinst

No in-app purchases

None

FEI Rental Manager

No in-app purchases

Questions

Is Solinst free?
Solinst is free to download, with no in-app purchases.
Is FEI Rental Manager free?
FEI Rental Manager is free to download, with no in-app purchases.
Which has better reviews, Solinst or FEI Rental Manager?
FEI Rental Manager is rated higher. Solinst averages 1.0 out of 5 from 7 ratings, while FEI Rental Manager averages 5.0 from 4 ratings.
Do Solinst or FEI Rental Manager have ads?
FEI Rental Manager shows ads; Solinst does not.
Which is updated more often, Solinst or FEI Rental Manager?
Solinst ships an update every 5 months, and FEI Rental Manager every 4 months. Most recently, Solinst was updated on September 5, 2026 and FEI Rental Manager on June 6, 2026.

Other comparisons