# DRUIDapp vs RFlutter PayApp

The clearest difference is in-app purchases: RFlutter PayApp at none against DRUIDapp's 2. RFlutter PayApp also leads on update cadence (every 10 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

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

DRUIDapp ships an update monthly, RFlutter PayApp every 10 days. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | DRUIDapp | RFlutter PayApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (168 ratings)](https://appshunter.io/ios/app/druidapp/id1107595146/reviews)** | — |
| Number of ratings | **168** | — |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 57 MB | 59 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Impairment Science, Inc.](https://appshunter.io/developer/1288634284) | [JMC Technologies Pte Ltd](https://appshunter.io/developer/1446696238) |

## 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 |

**What reviewers like**

- 👍 Useful safety check
- 👍 Good for tracking tiredness
- 👍 Helps identify optimal performance times
- 👍 Useful for long drives
- 👍 Great support

**What reviewers complain about**

- 😞 Monthly fee required
- 😞 Inaccurate with cannabis use
- 😞 Not trusted for impairment detection
- 😞 Baseline scores seem incorrect
- 😞 Inaccessible for paraplegics

**Reported bugs**

- Inconsistent results with cannabis use
- Incorrect baseline scores
- Inaccessible for paraplegic users
- App not loading or working
- Subscription required after initial use

**Requested features**

- Accessibility options for physical disabilities
- Alternative tests for users with physical limitations
- More accurate detection for cannabis users
- Improved accuracy for baseline and impairment detection
- More affordable pricing model


### RFlutter PayApp

[App page](https://appshunter.io/ios/app/rflutter-payapp/id1625357512)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DRUIDapp free?

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

### Is RFlutter PayApp free?

RFlutter PayApp is free to download, with no in-app purchases.

### Do DRUIDapp or RFlutter PayApp have ads?

Neither DRUIDapp nor RFlutter PayApp shows ads.

### Which is updated more often, DRUIDapp or RFlutter PayApp?

DRUIDapp ships an update monthly, and RFlutter PayApp every 10 days. Most recently, DRUIDapp was updated on October 1, 2026 and RFlutter PayApp on October 7, 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.*