# Cork Dork Wine Study vs Transparency Harm Reduction

The clearest difference is rating: Cork Dork Wine Study at 4.9 against Transparency Harm Reduction's 3.7. Cork Dork Wine Study also leads on review sentiment (92% vs 60%) and ratings volume (361 vs 6). Transparency Harm Reduction's advantage is in-app purchases (none vs 4) and update cadence (every 3 weeks vs every 2 months). On price and ads there is nothing between them.

Both are free to download. Cork Dork Wine Study sells 4 in-app purchases, starting at $7.99 per month. Transparency Harm Reduction asks for nothing beyond the download.

Cork Dork Wine Study holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: Cork Dork Wine Study has 361 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 92% of Cork Dork Wine Study's written reviews are positive against 60% of Transparency Harm Reduction's.

Cork Dork Wine Study ships an update every 2 months, Transparency Harm Reduction every 3 weeks. The most recent releases landed on October 27, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Cork Dork Wine Study | Transparency Harm Reduction |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (361 ratings)](https://appshunter.io/ios/app/cork-dork-wine-study/id1564201450/reviews)** | [3.7 (6 ratings)](https://appshunter.io/ios/app/transparency-harm-reduction/id6504291757/reviews) |
| Number of ratings | **361** | 6 |
| Positive reviews | **91.7% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 55 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Paul Kavanagh](https://appshunter.io/developer/1564201452) | [Infinite Transparency](https://appshunter.io/developer/1751743572) |

## What reviewers say

### Cork Dork Wine Study

[App page](https://appshunter.io/ios/app/cork-dork-wine-study/id1564201450)

Master wine exams with interactive flashcards, quizzes, and spaced repetition. Study all major wine regions, plus beer, cocktails, sake, and spirits. Ideal for WSET and CMS certifications.

**Highlights:** Spaced repetition learning, 2500+ wine study flashcards, 40+ wine maps, Interactive wine map quizzes, Practice exam questions, Study beer, cocktails, sake, spirits, Daily reminders and streak heatmap

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $7.99 | per month |
| Monthly Subscription | $9.99 | per month |
| Annual Subscription | $49.99 | per year |
| Annual Subscription | $59.99 | per year |

**What reviewers like**

- 📚 Comprehensive study material for wine certifications
- 🎯 Effective flashcard system with difficulty levels
- 🗺️ Interactive maps for regional learning
- 📱 Convenient mobile study on-the-go
- ⚡ Quick study sessions for busy professionals

**What reviewers complain about**

- 💰 Limited free content, paywall for most regions
- 🐛 Map quiz interface too small without stylus
- ❌ Misleading free app description
- 🔴 Customer service accessibility issues
- 🗺️ Map color key errors and inconsistencies

**Reported bugs**

- Quiz answer ovals not retaining selections
- Map color key showing duplicate colors with missing options
- Paid categories inaccessible after upgrade
- Subscription continues charging after app deletion
- Map quizzes too small for usable interaction

**Requested features**

- Multiple choice format option for appellations
- Larger, more accessible map quiz interface
- Better color coding in map keys
- Improved subscription management and cancellation process
- Updated content to match current exam materials


### Transparency Harm Reduction

[App page](https://appshunter.io/ios/app/transparency-harm-reduction/id6504291757)

This AI-powered app offers immediate guidance for substance testing, featuring a database of reaction videos and advice on kit usage. It aims to make substance testing accessible and easy with expert-backed information.

**Highlights:** AI-powered substance testing guidance, Database of over 1,100 lab-verified reaction videos, Instructions on how to test substances, Test kit recommendations, Access to testing guides and help, Direct links to purchase test kits

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

**In-app purchases:** none


## Frequently asked questions

### Is Cork Dork Wine Study free?

Cork Dork Wine Study is free to download, with in-app purchases available.

### Is Transparency Harm Reduction free?

Transparency Harm Reduction is free to download, with no in-app purchases.

### Which has better reviews, Cork Dork Wine Study or Transparency Harm Reduction?

Cork Dork Wine Study is rated higher. Cork Dork Wine Study averages 4.9 out of 5 from 361 ratings, while Transparency Harm Reduction averages 3.7 from 6 ratings.

### Do Cork Dork Wine Study or Transparency Harm Reduction have ads?

Neither Cork Dork Wine Study nor Transparency Harm Reduction shows ads.

### Which is updated more often, Cork Dork Wine Study or Transparency Harm Reduction?

Cork Dork Wine Study ships an update every 2 months, and Transparency Harm Reduction every 3 weeks. Most recently, Cork Dork Wine Study was updated on October 27, 2026 and Transparency Harm Reduction on October 22, 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.*