Comparison

CAPC Internal Parasites ID vs Codon One

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

Head to head
About

CAPC Internal Parasites ID

This app aids in the microscopic identification of fecal parasites for veterinary professionals and students. It features a collection of approximately 100 internal parasites found in various animals, with interactive flashcards for study and review.

Highlights
  • Microscopic parasite identification
  • Study by species
  • Random or common-to-least common study modes
  • Microscopic images with answers
  • Audio pronunciation of Latin names
  • Detailed parasite information
Features
Read full description

The Veterinary Internal Parasite Flash Card App is brought to you by the Companion Animal Parasite Council (CAPC). The application is designed to help strengthen learned skills in the microscopic identification of fecal parasites in veterinary clinic settings or for individual study. It includes approximately 100 veterinary internal parasites found in dogs, cats, small mammals, reptiles and birds. It’s easy and fun to use: - Select a species. - Choose to study from a series of random cards, or from the most common to the least common internal parasites. - Identify the internal parasite from a microscopic image and then flip the card to reveal the answer. The answer includes the common parasite name, the Latin name, an audio recording of the Latin name, and other details. Benefits: - Audio recording of the Latin name, if available - Labeled images - Magnification size - Interesting points about each parasite

About

Codon One

Master molecular biology, genetics, evolution, and life chemistry through interactive modules and quizzes. Explore essential concepts with clear diagrams and concise explanations. Includes helpful tools for sequence analysis and genetic code reference.

Highlights
  • Interactive learning modules
  • Quick quizzes for comprehension
  • Clear diagrams and plain language
  • Molecule reference guide
  • Sequence analysis tools
  • Genetic code exploration
Features
Read full description

Codon One helps you learn biology step by step, with short lessons, quick quizzes, flashcards, and a searchable glossary. Build a solid foundation in molecular biology, genetics, evolution, cell biology, development, and the history of science. Each section breaks complex ideas into clear explanations, diagrams, and focused checks for understanding. Core course (Modules) Module 1: Chemistry of Life – atoms & elements, bonds, water, pH, biomolecules Module 2: Genetics – chromosomes, replication, transcription, translation, regulation Module 3: Evolution – history of life, phylogeny, selection, drift, speciation, molecular evolution Module 4: History of Science – ideas, methods, and experiments that shaped modern biology Module 5: Cell Biology – membranes & transport, organelles & energy, cytoskeleton, signaling, cell division Module 6: Development – fertilization & body plans, differentiation, pattern formation & morphogenesis, growth & repair, evo-devo Additional topics are planned for future updates, including Animal Physiology, Microbiology & Immunology, Plant Biology, and more. Glossary & Flashcards Look up the essentials in one place - key terms from every module, plus the 20 amino acids and the nucleobases. Turn any topic into a flashcard deck and review with smart, spaced practice that focuses on the cards you find hardest. Quiz & Progress Practice across biochemistry, genetics, evolution, cell biology, development, and science history in a dedicated quiz area. Track improvement with success rates and per-topic stats, and let the app resurface your weak questions for targeted review. Keep a daily streak going to build a steady habit. Got a good question? Submit it directly from the app. Built-in Tools Sequence Operator: paste DNA, reverse or complement it, transcribe to RNA, translate in all six reading frames, and view length, GC content, and melting temperature. Codon Picker: explore the genetic code, see which codons map to each amino acid or stop signal, and tweak bases to see the effect. Triplet Encoder: write a message in amino-acid single-letter code and encode it as a DNA triplet sequence, then decode it by translation. Found a bug or have suggestions? Email info@codon-one.com - we read every message.

Screenshots

CAPC Internal Parasites ID3 screens
Codon One4 screens

Verdict

The call

The clearest difference is rating: Codon One at 4.5 against CAPC Internal Parasites ID's 3.3. Codon One also leads on update cadence (every 3 weeks vs every 15 months) and review sentiment (76% vs 50%). CAPC Internal Parasites ID's advantage is in-app purchases (none vs 7) and iOS requirement (12.0 vs 15.6). On price, ratings volume, 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. Codon One sells 7 one-off in-app purchases. CAPC Internal Parasites ID asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Codon One holds the better App Store score, 4.5 against 3.3. Both are backed by a comparable volume of ratings — 40 and 25 respectively. Written reviews point the same way: 50% of CAPC Internal Parasites ID's written reviews are positive against 76% of Codon One's.

UpkeepUpdate frequency

CAPC Internal Parasites ID ships an update every 15 months, Codon One every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
CAPC Internal Parasites ID versus Codon One: the parameters behind the verdict, then further details
ParameterCAPC Internal Parasites IDCodon One
PriceFreeFree
Rating3.3 (40 ratings)4.5 (25 ratings) — better
Positive reviews50.0% of reviews76.5% of reviews — better
Number of ratings40 — better25
Update frequencyEvery 15 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size106 MB277 MB
Age rating4+4+
DeveloperCompany: Companion Animal Parasite Council, IncDaniel Gebert

Customer experience

CAPC Internal Parasites ID

All ratings40 ratings
Positive57.5%
Neutral5.0%
Negative37.5%
Written reviews34 reviews
Positive50.0%
Neutral2.9%
Negative47.1%

Codon One

All ratings25 ratings
Positive84.0%
Neutral8.0%
Negative8.0%
Written reviews17 reviews
Positive76.5%
Neutral0.0%
Negative23.5%

In-app purchases

None

CAPC Internal Parasites ID

No in-app purchases

7 purchases

Codon One

One-time7
  • Module 2: GeneticsFree
  • Module 1: Chemistry of LifeFree
  • Module 3: Evolution$2.99
Show 4 more
  • Module 4: Science History$2.99
  • Module 5: Cell Biology$2.99
  • Module 6: Development$2.99
  • Unlock All$8.99

Questions

Is CAPC Internal Parasites ID free?
CAPC Internal Parasites ID is free to download, with no in-app purchases.
Is Codon One free?
Codon One is free to download, with in-app purchases available.
Which has better reviews, CAPC Internal Parasites ID or Codon One?
Codon One is rated higher. CAPC Internal Parasites ID averages 3.3 out of 5 from 40 ratings, while Codon One averages 4.5 from 25 ratings.
Do CAPC Internal Parasites ID or Codon One have ads?
Neither CAPC Internal Parasites ID nor Codon One shows ads.
Which is updated more often, CAPC Internal Parasites ID or Codon One?
CAPC Internal Parasites ID ships an update every 15 months, and Codon One every 3 weeks. Most recently, CAPC Internal Parasites ID was updated on November 2, 2026 and Codon One on November 3, 2026.

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