Comparison

Transparency Harm Reduction vs DrugsPRO Guide

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

Head to head
About

Transparency Harm Reduction

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
Read full description

Harnessing the power of AI technology, Transparency has taken the last 10 years and 10,000+ hours of research to provide a cutting-edge, versatile, and accessible harm reduction resource right from your phone. With the Transparency App, you’ll get immediate guidance for any substance you may be testing, access to our robust database of reaction videos, advice on which kit to use and how, and help learning how to test a specific substance. We’ve formulated this AI-powered app with our experience working with you over the last decade, to help make testing any substance as easy as possible. Download today for free to have this superior harm reduction guide at your fingertips. App Features: Watch Over 1,100 Lab-Verified Spot Kit Video Reactions Learn “How to Test” Your Substance Find Test Kit Recommendations Access Our Testing Guide and Test Kit Help Get Test Kits and Strips for Your Substance GET TEST KITS: BunkPolice.com CHECK OUT OUR UPCOMING PROJECTS: InfiniteTransparency.com SEND IN A SAMPLE FOR LAB TESTING: TransparencyTesting.com

About

DrugsPRO Guide

This app provides comprehensive information on psychoactive substances, including effects, risks, and interactions. It offers tools for journaling, drug checking, and interpreting test kit results to promote safer, informed choices.

Highlights
  • Psychoactive substance library
  • Drug interaction engine
  • Substance journaling
  • Drug checking warnings
  • Test kit analysis tools
  • Offline functionality
Features
Read full description

DrugsPRO is the most powerful way to track psychoactive drug effects, interactions and purity. The app helps increase awareness about drugs and harm reduction. Recognise risks and investigate them through an extensive library, substance journaling, drug checking warnings or test kit analysis tools. App comes with 30000+ test results, 2500+ substances rich library, 10+ free widgets and more. The app is designed for all screen sizes, orientations and comes with dark theme, widgets, as well as optional notifications. Taking psychoactive substances always involves risks. DrugsPRO does not encourage drug use and helps understand risks, recognise dangers early, and make safer, more informed choices. Use for educational and harm-reduction purposes only, not intended to promote drug use. PRIVACY BY DESIGN - no accounts required - no data upload required - no tracking, no ads Your choices, your insights, your privacy. In-app password available. JOURNALING & TRIP SITTING Track your use patterns, save notes and reflect, fully offline. Send friends push updates during your experience or keep your sobriety streak. - track your statistics, e.g. sobriety, doses, money spent - charts, widgets and notifications to track an experience - export or import data, including from similar apps DrugsPRO is built around the idea that self-knowledge and reflection are essential parts of building healthy habits. DRUG INFORMATION & INTERACTIONS Explore the most extensive evidence-based library of psychoactive substances, designed to provide key information in just a few taps. Combined data from DoseWiki, EffectsIndex, Erowid, TripSit and PW. Substance profiles include but not limited to: - effects and duration - risks and harm potential - interactions and tolerance - pharmacology and testing Most notably DrugsPRO features an interaction engine based on the TripSit model, significantly expanded. Understanding what a substance does (and what can go wrong) is essential for safety. DRUG CHECKING & PILL REPORTS Stay informed with up-to-date drug-checking results, pill warnings and other alerts from laboratories based in Europe, Oceania and America. - find pill alerts, including via photo (100% offline) - identify adulterants and unusually dangerous doses - list of 200+ drug checking locations worldwide - check country-level drug purity trends CAUTION: All lab results are published as WARNINGS. Warnings are also NOT limited to the results shared. No substance is completely safe and no warning should ever be misinterpreted as any implication of safety guarantee. Learning from recent lab results can however significantly raise risk awareness. REAGENT & TLC ANALYSIS Unique cutting-edge test kit analysis tools help you learn how to interpret test kit results, including: - instructions, tips & tricks - reference photos and videos - automatic results interpretation Test results are not definitive and may be affected by mixtures, impurities, and user error. No matter if you are new to drug checking or an experienced researcher, the provided toolkit is a modern and practical educational power tool. AND MORE… Discover the full wealth of knowledge inside the app to become your local harm reduction hero. Disclaimer: DrugsPRO is an educational and harm-reduction tool. It is not a substitute for professional medical or psychological advice. Always consult a qualified healthcare professional when making medical decisions. Test results can be misleading; do not rely on the app alone as confirmation of substance identity. DrugsPRO points toward confidential support and counselling resources for help in getting to know drugs, and for better understanding a relationship with substances. By PRO Test (protestkit, https://protestkit.eu). Includes in-app purchases. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Transparency Harm Reduction4 screens
DrugsPRO Guide4 screens

Verdict

The call

The clearest difference is rating: DrugsPRO Guide at 5.0 against Transparency Harm Reduction's 3.7. DrugsPRO Guide also leads on update cadence (weekly vs every 3 weeks) and device support (4 vs 1). Transparency Harm Reduction's advantage is in-app purchases (none vs 3) and ratings volume (6 vs 1). On price, ads and iOS requirement 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. DrugsPRO Guide sells 3 in-app purchases, starting at $0.99 per month. Transparency Harm Reduction asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

DrugsPRO Guide holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Transparency Harm Reduction has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Transparency Harm Reduction ships an update every 3 weeks, DrugsPRO Guide weekly. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Transparency Harm Reduction versus DrugsPRO Guide: the parameters behind the verdict, then further details
ParameterTransparency Harm ReductionDrugsPRO Guide
PriceFreeFree
Rating3.7 (6 ratings)5.0 (1 ratings) — better
Positive reviews60.0% of reviews—
Number of ratings6 — better1
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, Mac, Apple Watch — better
Requires iOS17.0 — better17.6
Further details — not scored
Size3 MB38 MB
Age rating17+17+
DeveloperInfinite TransparencyChemical Safety sp. z o.o.

Customer experience

Transparency Harm Reduction

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

DrugsPRO Guide

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Transparency Harm Reduction

No in-app purchases

3 purchases

DrugsPRO Guide

Subscriptions2
  • DrugsPRO LiveActivity Monthly$0.991 Month
  • DrugsPRO LiveActivity Yearly$3.991 Year
One-time1
  • DrugsPRO LiveActivity Lifetime$8.99

Questions

Is Transparency Harm Reduction free?
Transparency Harm Reduction is free to download, with no in-app purchases.
Is DrugsPRO Guide free?
DrugsPRO Guide is free to download, with in-app purchases available.
Which has better reviews, Transparency Harm Reduction or DrugsPRO Guide?
DrugsPRO Guide is rated higher. Transparency Harm Reduction averages 3.7 out of 5 from 6 ratings, while DrugsPRO Guide averages 5.0 from 1 ratings.
Do Transparency Harm Reduction or DrugsPRO Guide have ads?
Neither Transparency Harm Reduction nor DrugsPRO Guide shows ads.
Which is updated more often, Transparency Harm Reduction or DrugsPRO Guide?
Transparency Harm Reduction ships an update every 3 weeks, and DrugsPRO Guide weekly. Most recently, Transparency Harm Reduction was updated on November 4, 2026 and DrugsPRO Guide on November 5, 2026.

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