ChemSearch logo ChemSearch Native Android chemistry app
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Fast chemistry search, built for Android.

Find compounds by name, CAS, or CID. Check safety details, inspect structures, and open calculators without jumping between screens.

  • Android 8.0+
  • Search, safety, structures, calculators
  • Favorites and recent history
  • Optional AI summaries
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10+Chemistry Tools
3Info Sources
118Elements in CPK 3D
26+Android API Level

Good on a bus. Better at a lab bench.

The app keeps the common stuff close: quick lookups, readable identifiers, proper safety cards, and calculators you can open without digging through a maze of tabs.

Favorites, search history, zoomable structures, tap-to-copy values. The boring-but-important details are handled.
If you want AI summaries, bring your own key. If you do not, ignore that part and carry on with your day.

The useful bits

Not a chemistry encyclopedia pretending to be an app. Just the things you actually reach for when you need an answer quickly.

Search without guesswork

  • Look up compounds by common name, IUPAC name, CAS, or CID.
  • Autocomplete helps when the spelling gets ugly.
  • Favorites and recent searches keep repeat lookups quick.

IDs where you need them

  • Formula, molar mass, CID, and CAS show up first, not buried.
  • SMILES, InChI, InChIKey, charge, and empirical formula are one tap away.
  • Tap-to-copy is everywhere it ought to be.

3D that behaves itself

  • View the 2D structure fast, then jump into the 3D model.
  • Rotate, pinch, and inspect without the whole thing turning into soup.
  • All 118 elements use proper CPK colors, so it looks like chemistry and not confetti.

Safety notes you can actually read

  • GHS signal words, pictograms, and hazard codes are laid out cleanly.
  • Descriptions can come from PubChem, Wikipedia, or your own AI provider.
  • Useful when you need the summary first and the paper later.

Keeps your place

  • Light or dark theme, whichever hurts your eyes less.
  • Pick a default description source and leave it there.
  • Cached results make repeat lookups less annoying.

Optional AI, not a hostage situation

  • The app works fine without AI turned on.
  • If you do want extra summaries, add your own Gemini or Groq key.
  • No key farming, no fake "smart" layer glued over everything.

10+ chemistry tools built in

This is the drawer you open when chemistry stops being friendly. Most of the usual classroom and lab calculations are already here.

Tip: press / or Ctrl/Cmd + K to jump to this filter.

No tools matched this filter yet.

Custom 3D Molecule Viewer
Open your own MOL or SDF file and spin it around without leaving the app.
Molar Mass Calculator
Handles brackets, hydrates, and the sort of formulas people write when coffee has failed them.
Oxidation State Finder
Useful for the compounds that stop being obvious halfway through the line.
SMILES Visualizer
Paste SMILES, get a structure, move on.
Reaction Balancer
Balances awkward equations without the pencil-chewing stage.
Isomer Finder
Handy when one formula stubbornly refuses to mean one molecule.
Limiting Reagent
Tells you what runs out first and what you can realistically make.
Percent Yield
Quick reality check between theory and whatever actually happened on the bench.
Reaction Scaling
Scale a reaction without rewriting every number by hand.
Dilution Calculator
For when vanishes from your brain the second you need it.
Ideal Gas Law
PV = nRT, minus the ritual suffering.

A quick look around

Search, favorites, tool screens, safety cards, and the structure viewer. No mystery here.

Under the hood

Native Android app. Straight API calls. No mystery backend humming in the corner.

ComponentTechnology
LanguageKotlin
UIJetpack Compose + Material 3
NetworkingRetrofit 2 + OkHttp
Image loadingCoil
AsyncKotlin Coroutines + StateFlow
JSONGson
3D renderingCustom native Canvas engine
StorageSharedPreferences + local cache
SourceUsed for
PubChem PUG REST Official PubChem endpoint docs. Compound lookup, properties, autocomplete hints, synonyms, and downloadable structure files.
PubChem PUG View Structured safety and annotation records. GHS hazard summaries, signal words, and safety card details.
Wikipedia REST API Fallback source for plain-language summaries. Short overview text for compounds when PubChem descriptions are sparse.
Gemini API Optional provider: Groq API Bring-your-own-key AI summaries. The app runs fully without these.
GitHub Releases API Release metadata endpoint. Checks the latest APK version and shows update status in the header.

What you need

  • Android 8.0+ (API 26+)
  • An internet connection for lookups and descriptions
  • Android Studio Hedgehog or newer if you want to build it yourself

Permissions

  • INTERNET for compound data and release checks
  • POST_NOTIFICATIONS for optional update alerts
  • WRITE_EXTERNAL_STORAGE on Android 9 and below

Privacy

No analytics, no telemetry, no creepy extras. Favorites, search history, cache, and provider keys stay on the device unless you deliberately use an external API.