# Molecule World > Interactive 3D viewer for proteins, nucleic acids & small molecule structures Canonical page: [https://chrome-stats.com/d/com.moleculeworld](https://chrome-stats.com/d/com.moleculeworld) ## Overview - **ID:** `com.moleculeworld` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Digital World Biology - **Category:** EDUCATION - **Downloads:** 13 - **Version:** 1.0 - **Last updated:** 2026-07-31 - **First published:** 2026-07-31 - **Publisher country:** US - **Size:** 7.33 MB - **Data as of:** 2026-09-13 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.moleculeworld) - **Website:** [https://digitalworldbiology.com](https://digitalworldbiology.com/) - **Privacy policy:** [https://digitalworldbiology.com/privacy](https://digitalworldbiology.com/privacy) ## Description Molecule World brings interactive 3D molecular visualization to your Android phone or tablet. Open a structure from a file or fetch one by ID, then rotate, zoom, and explore it with a range of display styles, color schemes, and selection filters — whether you are teaching, studying, or just exploring the molecules of life.

LOAD STRUCTURES
- Open PDB, mmCIF, BinaryCIF (BCIF), MMDB JSON, and SDF/MOL files (gzipped supported)
- Fetch any structure by its four-character PDB ID, downloaded as a biological assembly so large complexes still open quickly
- Everything collects in a library, and the app reopens your last structure when you return

DISPLAY STYLES
- Ball & Stick, Spacefill, and Tubes (licorice)
- Ribbon/cartoon with rounded helices and beta-sheet arrows
- Molecular Surface, plus a Wire Surface that shows the shape while revealing what is underneath
- Ligands, ions, and cofactors always read clearly — organics as element-colored sticks, metals as element-colored spheres — in every style

COLOR SCHEMES
Color by Element (CPK), Secondary structure, Chain, Rainbow (N to C terminus, 5' to 3'), Residue type, Residue, Charge, Hydrophobicity, B-factor, or Domain. Switching schemes is instant.

FOCUS ON WHAT MATTERS
Use Show to display the whole structure, add crystallographic water, or isolate proteins, nucleic acids, heterogens, or the backbone (core, complete, or C-alpha trace). Options that do not apply to a structure are dimmed automatically.

SMART COLOR KEY
A live legend shows exactly what the colors mean, filtered to what is actually on screen. Heterogens split into metals and non-metals, sugars use standard SNFG colors, and single-atom ions are labeled by element.

DOMAINS
Color by structural domain, with named antibody domains (VH, CH1, CH2, CH3, and light-chain domains) fetched from NCBI. Repeated chains collapse to a clean, unique set of colors.

BUILT FOR MODERN STRUCTURES
Design-pipeline models (RFdiffusion, RFantibody, and predicted structures) that ship without secondary-structure records still show proper sheets and helices — secondary structure is computed from the backbone when a file does not provide it.

SHARE YOUR VIEW
Capture a high-resolution snapshot with a transparent background, cropped tight to the structure, saved straight to your gallery.

WHO IT'S FOR
- Students and educators in biology, biochemistry, and chemistry exploring proteins, DNA, RNA, and small molecules
- Structural biologists and crystallographers reviewing structures on the go
- Antibody and protein engineers inspecting domains, design-pipeline models, and predicted models from moles like Alpha Fold
- Anyone curious about the 3D shapes of the molecules of life

Molecule World is developed by Digital World Biology. It is a companion to the macOS and iOS apps, bringing the same beautiful rendering and science to Android. ## Rankings - #2,737,596 — Overall ## Permissions and access ### Permissions - `android.permission.INTERNET` - `com.android.vending.CHECK_LICENSE` - `com.moleculeworld.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [PDB Viewer: 3D Molecules](https://chrome-stats.com/d/com.qvyshift.pdb) — 251 users - [MolApp](https://chrome-stats.com/d/com.donghan.molapp) — 12 users - [iMolview](https://chrome-stats.com/d/com.molsoft.imolview2) — 7,661 users - [iMolview Lite](https://chrome-stats.com/d/com.molsoft.imolview) — 47,139 users, 4.45 / 5 - [ProteinViewer](https://chrome-stats.com/d/com.avas.proteinviewer) — 6 users - [Molecule 3D](https://chrome-stats.com/d/com.peter.home.moleculeModelSim) — 14,806 users - [Moluxis: 3D Molecule Viewer](https://chrome-stats.com/d/com.ankushsarkar.moluxis) — 1,385 users - [Zeus Android Molecular Viewer](https://chrome-stats.com/d/com.zeus.android) — 726 users - [Molcraft](https://chrome-stats.com/d/structure.example.three_d_structures) — 22 users - [MolSketchGo](https://chrome-stats.com/d/com.japality.molsketch) — 1,227 users - [BioMolecular View](https://chrome-stats.com/d/intime.molecularview) — 34 users - [Molecule of the Month Browser](https://chrome-stats.com/d/com.bammellab.motm) — 4,733 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.moleculeworld)