DRUIDapp vs Charge Smart MA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DRUIDapp
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.
- 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
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DRUID is a test for personal and workplace use that measures impairment of cognitive and motor functions. Users chose between either the 1-minute Rapid Druid Test or the 3-minute Benchmark Druid Test. Start your free 14-day trial today. DRUID applies neuroscience research to bring you a sophisticated tool that detects and measures cognitive and motor impairment from any cause, including from cannabis, illicit or prescription drugs, alcohol, fatigue, illness, chronic condition, concussion, severe emotional stress, or injury. Currently available for all smart phones and tablets, DRUID operates like a video game but with each use records hundreds of neurophysiological indicators. Are your employees fit for duty? A version of DRUID that includes management controls is also available for the workplace. Impaired employees, including those under the influence of alcohol or drugs, have slower reflexes and impaired balance. Impaired physical coordination, mental acuity and decision-making results in inefficient or incompetent work, reducing productivity and exposing employees and co-workers to far greater risk of injury or even death. Please note DRUID App is a utility application. DRUID app is not a medical app.
Charge Smart MA
Manage your electric vehicle charging and potentially save money. Connect your National Grid account and link your vehicle or charger to enroll in the program.
- Connect National Grid account
- Link vehicle or charger
- Enroll in charging program
- Manage EV charging
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Download the National Grid Charge Smart app. Connect your National Grid account. Connect your vehicle or charger using your existing manufacturer login details to enroll in the program.
Screenshots
Verdict
The clearest difference is rating: Charge Smart MA at 4.7 against DRUIDapp's 3.9. Charge Smart MA also leads on in-app purchases (none vs 2) and ratings volume (1K vs 168). DRUIDapp's advantage is review sentiment (53% vs 37%) and iOS requirement (16.6 vs 18.6). On price, update cadence, ads and device support 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
Both are free to download. DRUIDapp sells 2 one-off in-app purchases. Charge Smart MA asks for nothing beyond the download.
Charge Smart MA holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Charge Smart MA has 1K ratings behind it against 168, so its average is the more settled of the two. Written reviews complicate that: 53% of DRUIDapp's written reviews are positive against 37% of Charge Smart MA's, so the app with the better star average is not the one people write more warmly about.
DRUIDapp ships an update monthly, Charge Smart MA every 5 weeks. The most recent releases landed on September 26, 2026 and September 27, 2026 respectively.
| Parameter | DRUIDapp | Charge Smart MA |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (168 ratings) | 4.7 (1K ratings) — better |
| Positive reviews | 52.9% of reviews — better | 36.8% of reviews |
| Number of ratings | 168 | 1K — better |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 57 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Impairment Science, Inc. | National Grid plc |
Customer experience
DRUIDapp
Charge Smart MA
Bugs and requests
DRUIDapp
Not enough reviews yet to summarise bugs or requests.
Charge Smart MA
Reported bugs
4 issues- Rebates screen has no exit option
- Charging times not showing up correctly
- Login and authentication issues
- Incompatibility with certain vehicle models
Requested features
4 requests- Breakdown of monthly energy usage and costs
- Ability to link e-bill from within the app
- More detailed charging data and analytics
- Support for additional home charger brands
In-app purchases
DRUIDapp
- DRUID Premium$1.99
- DRUID Premium$14.99
Charge Smart MA
No in-app purchases
