iOS · Free · 17+

Harm Reduction:
Drug Education

Science-based psychedelic education. Harm reduction first. Now on your phone. This app does not promote, encourage, or facilitate drug use — it exists because people who choose to use substances deserve accurate safety information, not misinformation.

Download on the App Store

No accounts requiredBundled reference content works offlineJournal entries stored locally only

What's inside

Compound reference library

Detailed profiles for 23 psychoactive compounds — pharmacology, duration, risk factors, contraindications, and citations from published research.

266 research entries

Search summaries and source links across human and animal studies, reviews, preprints, and other research writing.

Interaction matrix

Look up available information about substance combinations and their risks. Missing information does not establish safety.

3D Molecule Studio

Rotate and inspect a collection of molecular structures, or look up other molecules through PubChem. Some plant and mixture profiles use a representative molecule.

Private trip journal

Keep personal reflections in a journal stored locally by the app.

Harm reduction guides

Preparation, set and setting, dosage awareness, and what to do when something goes wrong.

Grounding exercises

Evidence-informed techniques for difficult experiences — breathwork and sensory grounding.

Offline-first

Bundled reference content is available offline. PubChem searches and external source links require an internet connection.

Why this app exists

Reliable information should be easy to find when questions arise. The app brings compound profiles, risks, source links, and reflection tools together in a portable reference.

The app and website draw from a shared content collection, including research summaries, harm-reduction resources, and cultural material. Read the original sources and keep their limits in view. Our editorial policy explains the current review status.

Local tools and online connections

  • No accounts required
  • Bundled reference content works offline
  • Journal entries stored locally only
  • PubChem searches connect to an external service

Built by Traditionally Different Technology in South Dakota.

Read the privacy policy for more about local storage and external services.

Important information

This information is for educational purposes only. Always research thoroughly, test your substances, understand legal implications, and consult healthcare professionals. Never use substances alone or in unsafe environments.