Comparison

PDB Viewer vs XRM 2026

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PDB Viewer

Features
Read full description

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 — free, with no account, no ads, and no sign-up. WHERE THE MOLECULES COME FROM • RCSB Protein Data Bank — 200,000+ experimentally determined structures • AlphaFold — 200M+ AI-predicted protein models • SWISS-MODEL — template-based homology models • PubChem and ChEMBL — millions of drugs and compounds • Crystallography Open Database — small-molecule crystals • NCI/CADD resolver — 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 • Five representations: wireframe, ball-and-stick, space-filling (CPK), cartoon/ribbon, and a smooth molecular surface • Color by element, chain, secondary structure, rainbow, or AlphaFold confidence (pLDDT) • Biological assemblies: rebuild an entire icosahedral virus capsid from a few deposited chains • NMR ensembles: overlay every model in the bundle to watch a protein flex • Automatic secondary-structure detection MADE FOR TOUCH • Rotate, pinch-zoom, and pan with smooth native rendering • Tap any atom to see its element, residue, and chain • 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.

About

XRM 2026

Features
Read full description

Enhance your conference experience with the official XRM 2026 mobile app. Designed for participants of the 17th International Conference on X-ray Microscopy, the app provides quick and convenient access to all the information you need before and during the event. Taking place from August 30 to September 4, 2026, at the Brazilian Center for Research in Energy and Materials (CNPEM) in Campinas, Brazil, XRM 2026 brings together researchers, scientists, engineers, students, and industry professionals from around the world to discuss the latest advances in X-ray microscopy, imaging techniques, instrumentation, and their applications across multiple scientific disciplines. With the XRM 2026 app, you can: • Browse the complete scientific program, including plenary lectures, invited talks, oral presentations, poster sessions, workshops, and special events. • Create your personalized schedule by bookmarking your favorite sessions and presentations. • Search presentations, speakers, authors, and exhibitors with powerful filtering tools. • Access detailed information about each session, including abstracts, presentation times, and locations. • Explore the list of exhibitors, sponsors, and supporting organizations. • Receive important announcements and real-time notifications throughout the conference. • Find practical information about the venue, maps, transportation, and visitor services. • Stay connected with the latest updates, schedule changes, and conference news. Hosted by the Brazilian Synchrotron Light Laboratory (LNLS), part of CNPEM, XRM 2026 offers attendees the unique opportunity to visit Sirius, one of the world's most advanced fourth-generation synchrotron light sources, alongside state-of-the-art beamlines and research facilities. Whether you are attending scientific sessions, networking with colleagues, or exploring the conference venue, the official XRM 2026 app is your essential companion for making the most of your conference experience. Download the XRM 2026 app and stay informed, organized, and connected throughout the event.

Screenshots

PDB Viewer4 screens
XRM 20264 screens

Verdict

The call

The clearest difference is in-app purchases: XRM 2026 at none against PDB Viewer's 1. XRM 2026 also leads on update cadence (daily vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. PDB Viewer sells 1 one-off in-app purchase. XRM 2026 asks for nothing beyond the download.

UpkeepUpdate frequency

PDB Viewer ships an update monthly, XRM 2026 daily. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

Scorecard2 real differences Ā· 4 level
PDB Viewer versus XRM 2026: the parameters behind the verdict, then further details
ParameterPDB ViewerXRM 2026
PriceFreeFree
Update frequencyMonthlyDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.5 — better
Further details — not scored
Size2 MB35 MB
Age rating4+4+
DeveloperQvyshift LLCAptor Consultoria e Desenvolvimento de Software LTDA

In-app purchases

1 purchases

PDB Viewer

One-time1
  • PDB Viewer Pro$9.99
None

XRM 2026

No in-app purchases

Questions

Is PDB Viewer free?
PDB Viewer is free to download, with in-app purchases available.
Is XRM 2026 free?
XRM 2026 is free to download, with no in-app purchases.
Do PDB Viewer or XRM 2026 have ads?
Neither PDB Viewer nor XRM 2026 shows ads.
Which is updated more often, PDB Viewer or XRM 2026?
PDB Viewer ships an update monthly, and XRM 2026 daily. Most recently, PDB Viewer was updated on October 16, 2026 and XRM 2026 on October 10, 2026.

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