Comparison

PDB Viewer vs compaso

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
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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 — 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

compaso

Learn about and practice investing in the Venezuelan stock market. Access real-time data, educational courses, and a simulated portfolio to build your financial knowledge risk-free.

Highlights
  • Simulated investment portfolio
  • Real-time market data
  • Professional stock charts
  • Financial education courses
  • Watchlist for favorite stocks
  • Community for investors
Features
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La Bolsa de Caracas, simplificada. Compaso te acerca al mercado de valores venezolano desde tu teléfono. Aprende, practica y sigue la BVC en un solo lugar, sin complicaciones. Lo que puedes hacer: Portafolio simulado — Practica invirtiendo con dinero virtual y aprende sin riesgo antes de dar el primer paso. Datos del mercado en tiempo real — Precios, cotizaciones y detalles de las empresas de la BVC, siempre actualizados. Gráficos profesionales — Analiza el comportamiento de cada acción con herramientas de gráficos claras e intuitivas. Cursos de educación financiera — Domina los fundamentos de la bolsa con contenido diseñado para principiantes. Lista de seguimiento — Guarda tus acciones favoritas y mantente al día con lo que te importa. Comunidad — Conecta con otros inversionistas venezolanos y aprende en conjunto. Compaso es una plataforma tecnológica de información y educación financiera. No ejecuta operaciones ni administra fondos de los usuarios.

Screenshots

PDB Viewer4 screens
compaso4 screens

Verdict

The call

The clearest difference is in-app purchases: compaso at none against PDB Viewer's 1. On price, update cadence, ads and device support 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. compaso asks for nothing beyond the download.

UpkeepUpdate frequency

PDB Viewer ships an update monthly, compaso every 2 weeks. Both last shipped on October 31, 2026.

Scorecard1 real difference · 9 level
PDB Viewer versus compaso: the parameters behind the verdict, then further details
ParameterPDB Viewercompaso
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better16.4
Further details — not scored
Size2 MB56 MB
Age rating4+4+
DeveloperQvyshift LLCYolber Antonio Rojas Ojeda

In-app purchases

1 purchases

PDB Viewer

One-time1
  • PDB Viewer Pro$9.99
None

compaso

No in-app purchases

Questions

Is PDB Viewer free?
PDB Viewer is free to download, with in-app purchases available.
Is compaso free?
compaso is free to download, with no in-app purchases.
Do PDB Viewer or compaso have ads?
Neither PDB Viewer nor compaso shows ads.
Which is updated more often, PDB Viewer or compaso?
PDB Viewer ships an update monthly, and compaso every 2 weeks. Most recently, PDB Viewer was updated on October 31, 2026 and compaso on October 31, 2026.

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