Comparison

Charles Darwin vs BioViewer

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

Head to head
About

Charles Darwin

Embark on Charles Darwin's historic voyage aboard the HMS Beagle. Explore maps, diagrams, and text detailing his discoveries and the science of evolution. Test your knowledge with an included quiz.

Highlights
  • Trace HMS Beagle's voyage
  • Learn about Darwin's discoveries
  • Explore maps and diagrams
  • Study the science of evolution
  • Test knowledge with a quiz
Features
Read full description

Follow Charles Darwin on his epic voyage aboard the HMS Beagle on its five year journey of exploration and discovery. Charles Darwin sailed from Plymouth, England in 1831. The ship was equipped with scientific instruments for observation and measurement. On this journey Darwin kept copious notes and collected samples of plants, animals, rocks and fossils. As a naturalist he sought to explain the great diversity of life that he found. His research lead him to a comprehensive theory that would become the foundation of modern biology. Learn about the HMS Beagle, a British Royal Navy vessel, gained renown as the ship that carried Charles Darwin on his historic voyage around the world from 1831 to 1836. Designed initially for surveying and charting, the Beagle became an emblem of scientific exploration due to Darwin's transformative journey aboard. Setting sail from England, the ship traversed oceans and continents, allowing Darwin to collect an extensive array of specimens and observations that would later form the basis of his groundbreaking theory of evolution by natural selection. The Beagle's legacy extends far beyond its physical existence, as it represents the intersection of maritime adventure and scientific inquiry that forever altered our understanding of the natural world. Use this app to trace the voyage of the HMS Beagle and learn about Darwin's important discoveries. The app includes maps, diagrams and text to help students learn about the science of evolution. A quiz helps learners measure how well they understand key concepts.

About

BioViewer

Visualize 3D molecular structures from .pdb files on iOS, iPadOS, and macOS. Features smooth rendering, drag-and-drop support, and publication-quality photo exports for detailed analysis.

Highlights
  • 3D molecular structure visualization
  • Supports .pdb and .xyz files
  • Drag and drop functionality
  • Photo Mode with high-quality exports
  • Multi-model PDB support
  • Optimized for ProMotion displays
Read full description

A .pdb protein visualizer for iOS, iPadOS and macOS. View the 3D representation of any molecular structure from a .pdb file, using our custom Metal-based rendering engine based to allow for a smooth experience even in the biggest proteins.  - Full drag and drop support for .pdb and .xyz files. - Photo Mode with publication-quality exports. - Support for multi-model PDBs. - Support for high refresh rate ProMotion displays.

Screenshots

BioViewer4 screens

Verdict

The call

The clearest difference is price: BioViewer at Free against Charles Darwin's $1.99. BioViewer also leads on review sentiment (33% vs 0%) and update cadence (every 9 days vs every 6 months). Charles Darwin's advantage is iOS requirement (15.6 vs 17.0). On ads, in-app purchases 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

BioViewer is free to download; Charles Darwin costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Charles Darwin ships an update every 6 months, BioViewer every 9 days. Both last shipped on September 10, 2026.

Scorecard5 real differences · 5 level
Charles Darwin versus BioViewer: the parameters behind the verdict, then further details
ParameterCharles DarwinBioViewer
Price$1.99Free — better
Rating—1.0 (1 ratings) — better
Positive reviews0.0% of reviews33.3% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 6 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPad, Mac, Apple TViPhone, iPad, Mac
Requires iOS15.6 — better17.0
Further details — not scored
Size44 MB9 MB
Age rating4+4+
DeveloperVentura Educational SystemsRaul Monton Pinillos

Customer experience

Charles Darwin

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

BioViewer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Charles Darwin

No in-app purchases

None

BioViewer

No in-app purchases

Questions

Is Charles Darwin free?
Charles Darwin costs $1.99, with no in-app purchases.
Is BioViewer free?
BioViewer is free to download, with no in-app purchases.
Do Charles Darwin or BioViewer have ads?
Neither Charles Darwin nor BioViewer shows ads.
Which is updated more often, Charles Darwin or BioViewer?
Charles Darwin ships an update every 6 months, and BioViewer every 9 days. Most recently, Charles Darwin was updated on September 10, 2026 and BioViewer on September 10, 2026.

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