Comparison

UCuenca vs PDB Viewer

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

Head to head
About

UCuenca

Access a comprehensive learning ecosystem with smart content and personalized experiences for the University of Cuenca. Download multimedia resources for offline access and engage in collaborative e-learning.

Highlights
  • Unlimited learning ecosystem
  • Smart content platform
  • Offline digital resource access
  • Personalized e-learning experiences
  • Collaborative learning features
Read full description

Este ecosistema de aprendizaje ilimitado le permitirá acceder a todas las funcionalidades de la plataforma de aprendizaje, incluida una plataforma de contenido inteligente y las experiencias de aprendizaje para la Universidad de Cuenca. Dispondrá de la posibilidad de acceder y descargar recursos digitales multimedia, para leerlos / reproducirlos sin la necesidad de una conexión a Internet. Además, brinda acceso a la plataforma de e-learning con experiencias de aprendizaje personalizadas y colaborativas.

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.

Screenshots

UCuenca3 screens
PDB Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: UCuenca at none against PDB Viewer's 1. UCuenca also leads on update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

UCuenca ships an update every 2 weeks, PDB Viewer monthly. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 7 level
UCuenca versus PDB Viewer: the parameters behind the verdict, then further details
ParameterUCuencaPDB Viewer
PriceFreeFree
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size71 MB2 MB
Age rating4+4+
DeveloperOdiloQvyshift LLC

In-app purchases

None

UCuenca

No in-app purchases

1 purchases

PDB Viewer

One-time1
  • PDB Viewer Pro$9.99

Questions

Is UCuenca free?
UCuenca is free to download, with no in-app purchases.
Is PDB Viewer free?
PDB Viewer is free to download, with in-app purchases available.
Do UCuenca or PDB Viewer have ads?
Neither UCuenca nor PDB Viewer shows ads.
Which is updated more often, UCuenca or PDB Viewer?
UCuenca ships an update every 2 weeks, and PDB Viewer monthly. Most recently, UCuenca was updated on October 11, 2026 and PDB Viewer on October 16, 2026.

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