Comparison

NLE Calc vs WolfSense Mobile

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

Head to head
About

NLE Calc

This utility calculates the Recommended Weight Limit (RWL) and Lifting Index (LI) for single or multiple lifting tasks based on the NIOSH Lifting Equation. It helps assess physical stress to prevent low back musculoskeletal disorders.

Highlights
  • Calculates Recommended Weight Limit (RWL)
  • Calculates Lifting Index (LI)
  • Calculates Composite Lifting Index (CLI)
  • Based on Revised NIOSH Lifting Equation
  • Assesses physical stress for lifting tasks
Features
Read full description

The NIOSH Lifting Equation calculator (NLE Calc) is based on the Applications Manual for the Revised NIOSH Lifting Equation (Pub No. 94-110) and can be used to calculate the Recommended Weight Limit (RWL) and for single or multiple lifting tasks. The Lifting Index (LI) is an index of the relative physical stress for performing a single lifting task and the Composite Lifting Index (CLI) is an index of the overall physical stress for performing multiple lifting tasks. NIOSH recommends an LI and a CLI of 1 or less for protecting workers from physical stress related to development of low back musculoskeletal disorders. Please refer to the Applications Manual for the Revised NIOSH Lifting Equation publication for examples and details on how calculations are performed and what the results imply.

About

WolfSense Mobile

This application connects GrayWolf DirectSense® II probes to iOS devices, transforming them into real-time displays and data loggers. It supports up to six plug-and-play gas sensors for various indoor air quality, industrial hygiene, and HVAC applications. Users can store logs, view trend graphs, and add multimedia notes to data files.

Highlights
  • Real-time display
  • Data logging
  • Supports multiple gas sensors
  • Trend graphing
  • Multimedia note integration
  • Cloud data access
Features
Read full description

Connect your GrayWolf DirectSense® II probes to your Apple iOS devices! This app allows you to use your smartphone or tablet as a real-time display, data-logger and more. Customize your DSII probe with up to (6) plug and play gas sensors (plus %RH and ºC/ºF) for a variety of indoor air quality, green building, industrial hygiene, and HVAC applications. Choose from over 25 highly accurate, smart sensors including TVOCs (PID), Carbon Dioxide (NDIR), Formaldehyde and O3, CO, NO2, NH3, SO2, NO, Cl2, H2S, HCN, HCl, O2, H2 (electrochemical). Store “snapshot” logs during walk-throughs, or trend log over time at your specified interval. Simultaneously display multiple parameters or view trend graphs on your screen, even access GrayWolfLive data from the cloud. Take advantage of your feature-rich smartphone to add photos, videos, text and audio notes directly to data files for efficient, reliable documentation.

Screenshots

NLE Calc4 screens
WolfSense Mobile4 screens

Verdict

The call

The clearest difference is rating: WolfSense Mobile at 5.0 against NLE Calc's 2.8. NLE Calc's advantage is update cadence (fortnightly vs every 7 months) and ratings volume (10 vs 3). 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

WolfSense Mobile holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 10 and 3 respectively.

UpkeepUpdate frequency

NLE Calc ships an update fortnightly, WolfSense Mobile every 7 months. Both last shipped on November 3, 2026.

Scorecard3 real differences · 7 level
NLE Calc versus WolfSense Mobile: the parameters behind the verdict, then further details
ParameterNLE CalcWolfSense Mobile
PriceFreeFree
Rating2.8 (10 ratings)5.0 (3 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings10 — better3
Update frequencyFortnightly — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size62 MB161 MB
Age rating4+4+
DeveloperCenters For Disease Control and PreventionGrayWolf Sensing Solutions, LLC

Customer experience

NLE Calc

All ratings10 ratings
Positive30.0%
Neutral20.0%
Negative50.0%
Written reviews4 reviews
Positive0.0%
Neutral25.0%
Negative75.0%

WolfSense Mobile

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

In-app purchases

None

NLE Calc

No in-app purchases

None

WolfSense Mobile

No in-app purchases

Questions

Is NLE Calc free?
NLE Calc is free to download, with no in-app purchases.
Is WolfSense Mobile free?
WolfSense Mobile is free to download, with no in-app purchases.
Which has better reviews, NLE Calc or WolfSense Mobile?
WolfSense Mobile is rated higher. NLE Calc averages 2.8 out of 5 from 10 ratings, while WolfSense Mobile averages 5.0 from 3 ratings.
Do NLE Calc or WolfSense Mobile have ads?
Neither NLE Calc nor WolfSense Mobile shows ads.
Which is updated more often, NLE Calc or WolfSense Mobile?
NLE Calc ships an update fortnightly, and WolfSense Mobile every 7 months. Most recently, NLE Calc was updated on November 3, 2026 and WolfSense Mobile on November 3, 2026.

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