# KnowDrugs Drug Checking — Pill reports & Harm reduction

> Drug testing results, warnings, alerts, and harm reduction information. (iPhone/iPad app by Plant Product Design UG (haftungsbeschraenkt).)

- Source: https://appshunter.io/ios/app/knowdrugs-drug-checking/id1152858301 (this page in markdown: same URL + `.md`)
- Developer: [Plant Product Design UG (haftungsbeschraenkt)](https://appshunter.io/developer/1152858300)
- Category: Health & Fitness, Education
- Price: Free with in-app purchases
- Rating: 4.70/5 from 38 App Store ratings · 49 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.1 · 84 MB
- Languages: American English
- Released: 2016-09-17
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/knowdrugs-drug-checking/id1152858301/reviews.md

## What is KnowDrugs Drug Checking?

KnowDrugs is the easiest way to lookup drug testing results, pill warnings and drug alerts and provides you with drug info about more than 200 drugs, along with advice on harm reduction and safer use. Taking drugs always involves risks - however, if you do decide to take drugs, KnowDrugs can help you to take appropriate measures to reduce potential harms.

DRUG INFORMATION & EDUCATION

Check the profiles of more than 200 drugs for educational purposes: Stimulants like MDMA and Amphetamine, depressants such as Alcohol and Benzodiazepines or psychedelics like 2C-B, LSD and DMT.

KnowDrugs provides you with drug education harm reduction advice, focusing on MDMA / Molly / Ecstasy and other psychoactive substances. Knowing about the wanted and unwanted effects of drugs, their duration, interactions and risks helps you to make more informed decisions, reduce risks and reflect upon your drug habits and consumption behaviour.

DRUG CHECKING, PILL WARNINGS & DRUG ALERTS

Search for drug name, substance or location, to find drug alerts from nearby and learn about their ingredients and dosage strength to avoid overdose and particularly dangerous cuts (e.g. PMA).

Drug checking or pill testing is a way to reduce the harm from drug consumption by allowing users to find out the content and purity of substances that they intend to consume. This empowers users to make safer choices: to avoid more dangerous substances and combination and to use smaller quantities.

If you don't have access to professional drug testing services, looking up recent drug testing results can still help you make a more informed decision about your consumption.

HARM REDUCTION & RESPONSIBLE DRUG USE

Harm reduction aims to minimize the harms associated with recreational substance use. The harm reduction approach follows from the idea that substance use is a high-risk activity that innately entails the possibility of injury, addiction, and death. Therefore, the best strategy one can employ (outside of avoiding use entirely) is to take appropriate measures to mitigate its potential harms.

KnowDrugs highlights the harm-potential of more than 200 substances and demonstrates strategies on how to reduce the harms associated with the consumption of drugs.

KNOWDRUGS CAN ALSO HELP YOU  TO:

- learn how to spot and react in case of an emergency, take care of someone experiencing a bad trip at a party or festival
- find a free and confidential counselling service which accepts you and your personal choices, and helps you develop the right strategies and competencies if you want to change something about your consumption behaviour.

Note: Always check in with your doctor in addition to using the app and before making any medical decisions. This app is not a replacement for professional medical and/or psychological help.

## Key features

- Drug testing results lookup
- Pill warnings and alerts
- Information on 200+ drugs
- Harm reduction advice
- Safer drug use strategies
- Emergency response guidance

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Custom Theme | $2.99 | one-time |


## Recent user reviews (10 of 49)

All indexed reviews: https://appshunter.io/ios/app/knowdrugs-drug-checking/id1152858301/reviews.md

### 5/5 — 👍🏼

*2025-10-05, version 4.0.9*

Super app

### 5/5 — Funktioniert nicht

*2025-09-22, version 4.0.9*

Sonst 5 Sterne, aber unter iOS 26 stürzt die App beim starten ab und funktioniert dementsprechend überhaupt nicht mehr :(

### 3/5 — used for years now

*2025-07-26, version 3.9.8*

love this app, but as of recently haven’t been able to view anything other than the drug list… can’t search and can’t see any drug reports, would love for this feature to be added back as it helped a lot to identify things i had myself

### 5/5 — Amazing app!

*2025-06-25*

I love everything about this app—it looks very sleek, and is extremely helpful/informative. It’d be cool to see W-18 on here though!

### 5/5 — una app necesaria

*2024-12-15, version 3.9.4*

como dice en otra reseña, la gente no va a dejar de consumir, siempre habrá gente que consuma drogas y es mejor saber que llevan para prevenir malos viajes/sobredosis o muerte. Es bueno tener información.

### 5/5 — Una aplicación necesaria

*2024-09-25, version 3.9*

La gente que está en contra de esta aplicación, porque dice de consumir responsablemente viven en otro planeta. La gente siempre va a consumir, y es mejor que sepan lo que van a consumir. Contra más información haya mucho mejor. Aplicaciones como esta y empresas como la de Energy Control ayudan mucho a la gente.

### 5/5 — Super App!

*2024-08-26, version 3.9*

Die Idee der Aufklärung ist wichtig und wird hier richtig gut umgesetzt! Danke dafür!🙏 Auch technisch voll gut, vielleicht bei der Suche nen Picker nehmen anstatt dem horizontalen Scrollen da gibts teilweise so viele Auswahlmöglichkeiten. Aber richtig cool!

### 5/5 — top

*2024-08-03, version 3.9*

:)

### 5/5 — dope

*2024-04-23, version 3.6*

see the work putted in

### 1/5 — ESTA APP NO VALE PARA NADA

*2024-04-04, version 3.6*

Una app que habla de un consumo responsable? De verdad? Donde vamos a ir a parar . Las drogas son malas. Da igual el contexto que quieran ofrecer. El mensaje debería ser “No consumas drogas” y no el que dan nada más abrir la app “ Haz un consumo responsable” están incitando a que las personas las prueben. Causándoles curiosidad con mensajes de normalidad ante el consumo.

## Frequently asked questions about KnowDrugs Drug Checking

### What does the KnowDrugs app do?

KnowDrugs helps users access drug testing results, pill warnings, and drug alerts. It provides educational information on over 200 drugs, along with advice on harm reduction and safer use practices to minimize potential risks associated with substance consumption.

### What kind of drug information is available?

The app offers profiles for over 200 drugs, including stimulants like MDMA and amphetamine, depressants such as alcohol and benzodiazepines, and psychedelics like 2C-B, LSD, and DMT. This information covers wanted and unwanted effects, duration, interactions, and risks.

### How does the app help with drug checking?

You can search for drug names, substances, or locations to find recent drug alerts and learn about their ingredients and dosage strength. This helps users avoid overdose and identify dangerous adulterants, empowering them to make safer consumption choices.

### Is KnowDrugs a free app?

The app is free to download and use, but it offers in-app purchases. This model suggests that while core functionalities are available for free, certain premium features or content might require a purchase.

### What are the benefits of using this app for harm reduction?

The app highlights the harm potential of various substances and demonstrates strategies to reduce associated harms. It also provides guidance on spotting and reacting to emergencies, and finding confidential counseling services for those looking to change their consumption behavior.

## Version history (last 5 releases)

### 4.7.2 — 2026-08-20

Full UI redesign, security improvements, updated interaction data for more than 200 substances

### 4.6.3 — 2026-02-28

buxfixes and performance improvements

### 4.6.1 — 2026-02-07

bugfixes

### 4.5.1 — 2026-02-03

Improved image search, performance improvements

### 4.2.0 — 2026-01-15

Fixes & Improvements

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*