# DRUIDapp vs NLE Calc

The clearest difference is review sentiment: DRUIDapp at 53% against NLE Calc's 0%. DRUIDapp also leads on rating (3.9 vs 2.8) and ratings volume (164 vs 10). NLE Calc's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. DRUIDapp sells 2 one-off in-app purchases. NLE Calc asks for nothing beyond the download.

DRUIDapp holds the better App Store score, 3.9 against 2.8. That said, the two scores are not equally well evidenced: DRUIDapp has 164 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 53% of DRUIDapp's written reviews are positive against 0% of NLE Calc's.

DRUIDapp ships an update monthly, NLE Calc fortnightly. The most recent releases landed on September 13, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | DRUIDapp | NLE Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (164 ratings)](https://appshunter.io/ios/app/druidapp/id1107595146/reviews)** | [2.8 (10 ratings)](https://appshunter.io/ios/app/nle-calc/id1266403464/reviews) |
| Number of ratings | **164** | 10 |
| Positive reviews | **52.9% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 82 MB | 62 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Impairment Science, Inc.](https://appshunter.io/developer/1288634284) | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) |

## What reviewers say

### DRUIDapp

[App page](https://appshunter.io/ios/app/druidapp/id1107595146)

This app assesses cognitive and motor function impairment using neuroscience-based tests. It offers quick or benchmark assessments to detect impairment from various causes like drugs, alcohol, fatigue, or illness. A workplace version with management controls is also available.

**Highlights:** Cognitive and motor function assessment, 1-minute Rapid Test, 3-minute Benchmark Test, Detects impairment from various causes, Neuroscience-based technology, Workplace management controls available

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DRUID Premium | $1.99 | one-time |
| DRUID Premium | $14.99 | one-time |


### NLE Calc

[App page](https://appshunter.io/ios/app/nle-calc/id1266403464)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DRUIDapp free?

DRUIDapp is free to download, with in-app purchases available.

### Is NLE Calc free?

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

### Which has better reviews, DRUIDapp or NLE Calc?

DRUIDapp is rated higher. DRUIDapp averages 3.9 out of 5 from 164 ratings, while NLE Calc averages 2.8 from 10 ratings.

### Do DRUIDapp or NLE Calc have ads?

Neither DRUIDapp nor NLE Calc shows ads.

### Which is updated more often, DRUIDapp or NLE Calc?

DRUIDapp ships an update monthly, and NLE Calc fortnightly. Most recently, DRUIDapp was updated on September 13, 2026 and NLE Calc on September 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.*