PDB Viewer vs Internalize
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PDB Viewer
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PDB Viewer turns your phone into a molecular microscope. Search the entire Protein Data Bank and over 200 million AlphaFold predictions, then explore any protein, virus, drug, or DNA structure in interactive 3D โ free, with no account, no ads, and no sign-up. WHERE THE MOLECULES COME FROM โข RCSB Protein Data Bank โ 200,000+ experimentally determined structures โข AlphaFold โ 200M+ AI-predicted protein models โข SWISS-MODEL โ template-based homology models โข PubChem and ChEMBL โ millions of drugs and compounds โข Crystallography Open Database โ small-molecule crystals โข NCI/CADD resolver โ type a chemical name and get a 3D model Every source is free and needs no API key. You can also open your own .pdb and .cif files. WAYS TO SEE IT โข Five representations: wireframe, ball-and-stick, space-filling (CPK), cartoon/ribbon, and a smooth molecular surface โข Color by element, chain, secondary structure, rainbow, or AlphaFold confidence (pLDDT) โข Biological assemblies: rebuild an entire icosahedral virus capsid from a few deposited chains โข NMR ensembles: overlay every model in the bundle to watch a protein flex โข Automatic secondary-structure detection MADE FOR TOUCH โข Rotate, pinch-zoom, and pan with smooth native rendering โข Tap any atom to see its element, residue, and chain โข Recently viewed structures are cached, so they reopen instantly and work offline For students, researchers, teachers, and the simply curious. PDB Viewer makes structural biology beautiful and accessible. Structures are provided by their respective databases. PDB Viewer is independent and not affiliated with or endorsed by the RCSB PDB, EMBL-EBI, or AlphaFold.
Internalize
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Internalize turns dense papers into immersive, narrated explainers. Pick a paper and watch it come alive: a particle renderer highlights exactly what is being discussed while a clear voice walks you through the ideas, at the depth you choose. THREE DEPTHS - EXPERT: full technical detail - COLLEGE: clear, with everyday analogies - ELI5: explain it like you're five YOUR OWN PAPERS Sign in with Apple and import any PDF up to 60 MB. Internalize builds your explainer automatically (narration, highlights, diagrams), shows live progress while it works, and notifies you the moment it is ready. Your imports are private to your account, and you can delete your account and all data at any time, right in the app. MADE FOR FOCUS - Word-by-word text that follows the narration - Readout speed control, 0.8x to 1.5x - Jump to any page, figure, or equation - Diagram mode, dark mode, zoom-follow mode - Works on iPhone, iPad, and Mac
Screenshots
Verdict
The clearest difference is update cadence: Internalize at every 4 days against PDB Viewer's monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. PDB Viewer sells 1 one-off in-app purchase and Internalize sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
PDB Viewer ships an update monthly, Internalize every 4 days. Both last shipped on October 31, 2026.
| Parameter | PDB Viewer | Internalize |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 4 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Mac โ better |
| Requires iOS | 16.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Qvyshift LLC | Trilon Apps |
In-app purchases
PDB Viewer
- PDB Viewer Pro$9.99
Internalize
- 1 Import Credit$4.99
- 5 Import Credits$17.99
- 10 Import Credits$29.99
Questions
Is PDB Viewer free?
Is Internalize free?
Do PDB Viewer or Internalize have ads?
Which is updated more often, PDB Viewer or Internalize?
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